6 - TeSys protection components: relays and controllers

Transcription

1 Contents - : relays and controllers Selection guide page / Motor and machine protection page / TeSys K, thermal overload relays Adjustale from 0. to A page /0 TeSys D, -pole thermal overload relays Description, characteristics page / References page /0 Accessories page / Dimensions, mounting and schemes page / TeSys LR D, -pole electronic thermal overload relays Description, characteristics page / References page / Accessories page / Dimensions page / Schemes page / TeSys LR F, -pole electronic thermal overload relays Presentation page /0 Characteristics page / References page / Accessories page / Dimensions, schemes and setting-up page / TeSys RM XA, single pole magnetic current relays Presentation, characteristics page /0 References page / Dimensions and schemes page / LT, thermistor protection units for use with PTC thermistor proes Selection guide page / General, characteristics page / References page /0 Dimensions, schemes and setting-up page / Operation page / 0 /0

2 TeSys LR D and LT, electronic over current relays Presentation,description page / Curves, characteristics page / References page / Dimensions, mounting and schemes page / TeSys U controllers Presentation page /0 Application example page /0 Characteristics page / References page / Cominations page / Dimensions and mounting page / Schemes page / TeSys T Motor Management System Selection guide page / Presentation, description page /0 Functions page / Programming page / Characteristics page / References page / Dimensions, mounting page /0 Schemes page / 0 /

3 Selection guide Protection relays and controllers Applications Motor protection Thermal motor protection Protection - Motor overload - Stalling - Phase failure Tripping class Class 0 A Classes 0 A and 0 Classes 0 and 0 Communication Used with contactor type LC K, LP K LC D LC F Motor current (In) 0. A 0. 0 A 0 0 A Relay or controller type LR K LRD, LR D and LR D LR F Pages / /0 to / / and / 0 /

4 Machine protection Motor and machine protection Protection of slip ring motors and of circuits without current peaks Protection of resistors, earings, capacitors Protection and control - Strong overcurrent - Stalling - Frequent starting - Harsh environments - Overtorque - Mechanical shocks - Locked rotor - Phase failure - Overtorque - Mechanical shocks - Thermal overload - Phase imalance and phase failure - Motor stalling - Long starting times - Earth fault - Thermal overload - Phase imalance and phase failure - Locked rotor - Long starting times - Phase reversal - Earth fault Classes to 0 Classes to 0 AS-Interface, Modus, CANopen, Advantys STB All contactors Modus, CANopen, DeviceNet, Ethernet TCP/IP 0. 0 A Unlimited 0. A 0. 0 A A 0. 0 A RM XA LT S LRD LT LUTM p0bl LTM R / and / /0 / / / 0 /

5 General Motor and machine protection Introduction Exceeding the operating limits of an electric motor will lead, eventually, not only to destruction of the motor itself ut also of the mechanisms it drives. This type of load can e the cause of electrical or mechanical faults. Electrical faults: v overvoltage, voltage drop, imalance and phase failure which cause variations in the current drawn, v short-circuits which can cause the current to reach levels capale of destroying the load. Mechanical faults: v locked rotor, v rief or prolonged overload which leads to an increase in the current drawn y the motor, and therefore overheating. The cost of these faults must take into account loss of production, loss of raw materials, repair of the production tool, poor quality of production and delays in delivery. These faults can also have dramatic consequences on the safety of persons in direct or indirect contact with the motor. To prevent these faults, protection measures are necessary. They make it possile to isolate the equipment to e protected from the mains supply y measuring variations in electrical values (voltage, current, etc ). Each motor starter must therefore have: short-circuit protection, to detect and reak, as quickly as possile, anormal currents generally greater than 0 times the rated current (In). overload protection, to detect increases in current up to aout 0 In and switch off the starter efore overheating of the motor and conductors damages the insulation. thermal overload relays, or y more integrated devices offering several types of protection. 0 /

6 General (continued) Motor and machine protection Causes, effects and consequences of various faults There are two types of fault: Internal faults within the motor. External faults: these are located outside the electric motor ut their consequences can lead to damage inside the motor. Faults Causes Effects Consequences on the motor and on the machine Short-circuit Overvoltage Phase imalance and phase failure High starting frequency Voltage variations Harmonics Long starting time Jamming Contact etween several phases, or etween one phase and neutral or etween several turns of the same phase. Lightning Electrostatic discharge Operation Opening of a phase Single-phase load upstream of the motor Short-circuit etween the turns of the same winding Failure of the automation system Too many manual control operations Numerous fault trips Instaility of the mains voltage Connection of heavy loads Pollution of the mains supply y variale speed drives, inverters, etc... Resistive torque too high (load too heavy) Voltage drop Mechanical prolem (crusher) Seizures Current peak Electrodynamic forces on the conductors Dielectric reakdown in the windings and speed Increase in losses Starting impossile if phase failure High stator and rotor temperature rise due to the frequent start current Reduction of usale torque Increase in losses Reduction of usale torque Increase in losses Destruction of windings Destruction of the windings due to loss of insulation Overheating () Overheating () Consequences on the process Overheating () Overheating () Increase in starting time Overheating ) Overcurrent Overheating () Consequences on the process No-load running Pump running empty Mechanical reak in drive to the load Drop in current drawn Consequences on the process Frequency Overload Overload of a supply powered y limited independent sources Faulty alternator speed regulator Increase in resistive torque Voltage drop Drop in power factor Increase in losses Interferes with synchronous devices (clock, recorder,...) Increase in current consumption Overheating () Loss of machine excitation Phase-Earth fault current Break in rotor winding Accidental Phase-Earth contacts Accidental Phase-machine casing contacts (casing connected to earth) Increase in active power Drop in power factor Overvoltage developed in the mains supply Rise in earth potential (safety of persons) Consequences on safety of persons () Then, in the longer or shorter term, depending on the seriousness of the fault and/or its frequency, short-circuit and destruction of the windings. 0 /

7 General (continued) Motor and machine protection Protection functions Short-circuit protection General A short-circuit results in a very rapid rise in current which can reach several hundred times the value of the operational current. The consequences of a short-circuit are dangerous to oth equipment and persons. It is therefore imperative to use protection devices to detect the fault and very quickly reak the circuit. Two types of protection are commonly used: fuses (cutout) which reak the circuit y melting, which then requires their replacement, magnetic trip circuit-reakers, often more simply called "magnetic circuitreakers", which only require re-setting to put them ack into service. Short-circuit protection can also e uilt-into multifunction devices such as motor circuit-reakers and contactor-reakers. The main characteristics of short-circuit protection devices are: their reaking capacity: this is the highest prospective short-circuit current value that a protection device can reak at a given voltage. their making capacity: this is the highest current value that the protection device The making capacity is equal to k times the reaking capacity. LS D fuse carrier GS N switch disconnectors Fuses (cutouts) Fuses provide individual phase protection (single-pole), with a high reaking capacity in a compact size: mounted either in fuse carriers, or in isolators, replacing the original links or shunt ars. For motor protection, am type fuses are used. Their design characteristics allow them to conduct the high magnetising currents that occur when motors are switched on. They are therefore unsuitale for overload protection (unlike gg type fuses). This is why an overload relay must e included in the motor power supply circuit. 0 Magnetic circuit-reakers These circuit-reakers protect installations against short-circuits, within the limit of their reaking capacity. Magnetic circuit-reakers provide omnipole reaking as standard. For relatively low short-circuit currents, the operation of a circuit-reaker is faster than that of fuses. This protection conforms to standard IEC 0-. The thermal and electrodymanic effects are also limited, therefore ensuring etter protection of cales and equipment. GV L magnetic circuit-reraker TeSys U LUB starter with LUCApp control unit 0 /

8 General (continued) Motor and machine protection LRD 0 thermal overload relay LRD thermal overload relay RM JA current measurement relay Protection functions (continued) Overload protection General An overload condition is the most frequently encountered fault. The symptoms are a rise in the current drawn y the motor and thermal effects. A rapid return to normal operating conditions is important. The actual operating conditions (amient temperature, operating altitude and type of standard duty) are essential to determine the operating values of the motor (power, current) and to e ale to select effective overload protection. These operational values are given y the motor manufacturer. According to the level required, protection can e provided y: overload relays and thermal overload relays (i-metallic or electronic type) which protect motors in the event of: v overload, y monitoring the current drawn y each phase, v phase imalance or failure, y their differential mechanism. overtorque relays, multifunction relays. Overload relays These relays protect motors against overload. They must allow the temporary overload that occurs on starting and must only trip if the starting time is anormally long. The overload relay will e selected according to the length of the starting time (tripping class) and the motor rating. These relays have a thermal memory (except for certain electronic overload relays, indicated y their manufacturers) and can e connected: either in series with the load, or to current transformers placed in series with the load. Bi-metallic thermal overload relays Comined with a contactor, these relays protect the line and the equipment against small and prolonged overloads. They must e protected against strong overcurrent y a circuit-reaker or fuses. These relays may e used on an a.c. or d.c. system and are generally: -pole, compensated, i.e. insensitive to amient temperature variations, with manual or automatic reset, graduated with a "motor FLC" scale: allowing direct setting to the full load current as shown on the motor rating plate. They can also e sensitive to phase failure: this is known as 'differential'. This function conforms to standards IEC 0-- and 0-- This type of relay is extremely reliale and is a relatively low cost device. Electronic thermal overload relays Electronic thermal overload relays have the advantage of electronics which allow a more complex thermal image of the motor to e created. They can e comined with products having complementary functions, such as: temperature sensing via PTC proes, protection against jamming and overtorque, protection against phase reversal, earth fault protection, protection against no-load running, alarm function. TeSys U starter with thermal overload alarm function module 0 /

9 General (continued) Motor and machine protection Protection functions (continued) Overload protection (continued) Relays for use with PTC thermistor proes With direct sensing of the stator windings, these relays can e used to protect motors against: overload, a rise in amient temperature, a ventilation circuit fault, a high starting frequency, mechanical shocks, etc... LT S relays for use with thermistor proes Overload (or overtorque) relays These relays protect the drive line in the event of a locked rotor, seizure or mechanical shocks. This is an additional protection. Unlike thermal overload relays, these relays do not have a thermal memory. They The overtorque relay can e used as overload protection for motors with long starting times or very frequent starting (for example, lifting hoists). LR D0 instantaneous electronic overcurrent relays Multifunction relays Overcurrent relays are limited when it is necessary to take into account prolems associated with voltage, temperature or special applications. New production or maintenance management needs have prompted manufacturers to offer products which provide not only adaptale protection, ut also complete management of the motor and its load. They incorporate: current and voltage sensors (TeSys T controllers), hyrid analog and digital electronic technology, the use of communication uses for data exchange and control, powerful motor modelling algorithms, integrated application programs whose parameters can e set. These products make it possile to reduce installation and operating costs y reducing maintenance and downtime. TeSys U starters: The multifunction relay is incorporated in the motor starter. This solution is very compact with reduced wiring. It is limited to A. TeSys U LUB starter with multifunction control unit LUC M TeSys U controller LUTM 0BL TeSys U controllers: The multifunction relay is separate from the power line and reuses the function locks from the TeSys U solution. It can e used in conjunction with a contactor up to 0 A. TeSys T controllers: The multifunction relay is separate from the power line and incorporates inputs and outputs. It can e used in conjunction with a contactor up to 0 A. TeSys T controller LTM R0MBD 0 /

10 General (continued) Motor and machine protection Protection relay selection tale Motor protection Relay type Thermal overload relay LR K, LRD, LRD, LR F, LR D () Relays for use with PTC proes LT S Machine protection Overtorque relays LR D, LT Motor and machine protection TeSys U controller LUT M Causes of overheating () () () () Slight overload TeSys T controller LTM R Locked rotor No-load running Supply phase failure LR D Ventilation fault Anormal temperature rise Shaft earing seizure Insulation fault Protracted starting time Severe duty Voltage variation With proes With proes With proes With proes Loss of machine excitation Ideally suited Possile solution Not suitale (no protection) () for motor circuit-reaker type GVME. () Protection ased on current. () Protection ased on current and voltage. 0 /

11 Characteristics TeSys K thermal overload relays, adjustale from 0. to A Environment Conforming to standards IEC 0, NF C -0, VDE 00, BS UL, CSA Protective treatment Conforming to IEC 00 TC (Klimafest, Climateproof) (DIN 00) Degree of protection Conforming to VDE 00 Amient air temperature around the device Storage C For normal operation (IEC 0) C (without derating) Operating limit C (with derating) () Maximum operating altitude Operating positions Without derating m 000 Vertical axis Horizontal axis Without derating Flame resistance Conforming to UL Self-extinguishing material V Conforming to NF F -0 and -0 Conforming to requirement Shock resistance, hot state Conforming to IEC 00, 0 gn (/ sine wave, ms) N/C contact Conforming to IEC 00, 0 gn N/O contact Viration resistance, Conforming to IEC 00, gn hot state to 00 Hz N/C contact Conforming to IEC 00, N/O contact gn Safe separation of circuits Caling Screw clamp terminals With derating () Conforming to VDE 00 VLSV (), up to 00 V and IEC 0 Minimum Maximum Maximum to IEC 0 Solid cale mm x. x x + x. Flexile cale without cale end mm x 0. x x. Flexile cale with cale end mm x 0. x. + x. x. + x. Tightening torque Philips head n - Ø N.m 0. Mounting Directly under the contactor or reversing contactor Connections Made automatically when mounted under the contactor, as follows : contactor terminal A connected to overload relay terminal on all products, contactor terminal connected to overload relay terminal on products with P + N/O. When using P + N/C, or P contactors, or the N/O auxiliary contact marked -, at a voltage other than the coil voltage, reak off the link marked. Auxiliary contact characteristics Numer of contacts Conventional thermal current A Short-circuit protection Conforming to IEC 0, VDE 00. gg fuse or circuit-reaker GB CBpp Maximum power of the controlled contactor coils (sealed) (Occasional operating cycles of contact -) A N/C + N/O max. a.c. V 0 0/0 00 /0 00/0 VA d.c. V W Maximum operational voltage a.c., category AC- V 0 d.c., category DC- V 0 () Very low safety voltage. References : page / /0 Dimensions : page / Schemes : page /

12 Characteristics (continued) TeSys K thermal overload relays, adjustale from 0. to A Electrical characteristics of the power circuit Rated operational voltage (Ue) Rated insulation voltage (Ui) Up to V 0 Conforming to BS V 0 Conforming to IEC 0 V 0 Conforming to VDE 00 group C V 0 Conforming to CSA C - n V 00 Rated impulse withstand kv voltage (Uimp) Frequency limits of the operational current Hz Up to 00 Power dissipated per pole W Operating characteristics Sensitivity to phase Conforming to IEC 0 Yes failure Reset Manual or automatic Selected y means of a lockale and sealale switch on the front of the relay Signalling On front of relay Trip indicator Reset-Stop function Pressing the Reset-Stop utton : - actuates the N/C contact - has no effect on the N/O contact Test function By pushutton Pressing the Test utton enales : - checking of the control circuit wiring - simulation of overload tripping (actuation of oth N/C and N/O contacts, and of the trip indicator) Short-circuit protection and coordination See pages / and / Tripping curves Average operating time related to multiples of the current setting (Class 0 A) Balanced -phase operation, from cold state Balanced operation with phases only, from cold state Time h h 0 min h 0 min 0 min Time h h 0 min h 0 min 0 min 0 min 0 min min min min min min min 0 s min min 0 s 0 s 0 s 0 s 0 s s s s s,, 0 X setting current (Ir) s s s s,, 0 X setting current (Ir) Setting : at lower end of scale Setting : at upper end of scale 0 References : page / Dimensions : page / Schemes : page / /

13 References TeSys K thermal overload relays, adjustale from 0. to A -pole relays with screw clamp terminals These overload relays are designed for the protection of motors. They are compensated and phase failure sensitive. Resetting can either e manual or automatic. Direct mounting: under the contactor for versions with screw clamp terminals only; pre-wired terminals, see pages /0 and /. Separate mounting: using terminal lock LA K00 (see elow). On the front face of the overload relay: selection of reset mode: Manual (marked H) or Automatic (marked A), red pushutton: Trip Test function, lue pushutton: Stop and manual Reset, Protection y magnetic circuit-reaker GV LE, see pages / and /. 0_ Class 0 A Relay setting range Fuses to e used with selected relay Maximum rating Type Reference Weight am gg BS A A A A kg LR K LR K LR K00 0. LR K LR K LR K LR K LR K LR K LR K LR K LR K LR K0 0. LA K00 0 LR K LR K0 0. Overload relays for unalanced loads Class 0 A LR y LR in the references selected from aove (only applicale to overload relays LR K00 to LR K0). Example: LR K00. Accessory Description Type of connection Reference Weight kg Terminal lock for separate clip-on mounting of the overload relay on mm rail Screw clamp LA K Characteristics: pages /0 and / / Dimensions: page / Schemes: page /

14 Dimensions, mounting, schemes TeSys K thermal overload relays, adjustale from 0. to A Dimensions, mounting LR K Direct mounting eneath the contactor Separate mounting with terminal lock LA K00 on mm rail (AM DP00 or AM DE00) = = = 0 = c 0 Schemes LR K AM DP00. DE00 LR K + LCp K Pre-wiring scheme c Test A H Reset/stop A A KM O KM A A LR K Note : If pre-wiring is not required, reak off the links located on the thermal overload relay. A H Test Reset/stop 0 Characteristics: pages /0 and / References: page / /

15 Presentation, description -pole thermal overload relays TeSys D Presentation TeSys D thermal overload relays are designed to protect a.c. circuits and motors against: overloads, phase failure, excessively long starting times, prolonged stalled rotor condition. LRD 0 Power connection LRD 0 to LRD LRD 0 to relays are designed for connection y screw clamp terminals. They can e supplied for connection y spring terminals or y lugs (). LRD to LRD LRD to relays are for connection y BTR screw connectors (hexagon socket head). The screws are tightened y means of a size, insulated Allen key. This type of connection uses the EverLink system with creep compensation () (Schneider Electric patent). This technique makes it possile to achieve accurate and durale tightening torque. LRD These relays are also availale for connection y lugs (). LRD to, LR D to D LRD to and LR D to D relays are designed for connection y screw clamp terminals. They can e supplied for connection y lugs (). LRD pp Description RESET, 0 STOP LRD 0 and LRD LRD TEST A 0 R M A E S E T NO NC, TeSys D -pole thermal overload relays are designed to protect a.c. circuits and motors against overloads, phase failure, long starting times and prolonged stalling of the motor. Adjustment dial Ir. Test utton. Operation of the Test utton allows: - checking of control circuit wiring, - simulation of relay tripping (actuates oth the N/O and N/C contacts). Stop utton. Actuates the N/C contact; does not affect the N/O contact. Reset utton. Trip indicator. Setting locked y sealing the cover. Selector for manual or automatic reset. LRD 0 to and LRD to LRD relays are supplied with the selector in the manual position, protected y a cover. Delierate action is required to move it to the automatic position. LRD, LR D 0 () Connection y lugs meets the requirements of certain Asian markets and is suitale for applications suject to strong viration, such as railway transport. () Creep: normal crushing phenomenon of copper conductors, that is accentuated over time. References: pages /0 to / / Dimensions, mounting : pages / to / Schemes: page /

16 Characteristics -pole thermal overload relays TeSys D Environment Conforming to standards IEC/EN 0--, IEC/EN 0--, UL 0, CSA C. n. ATEX directive //EC () UL, CSA. CCC, GOST ATEX INERIS (). GL, DNV, RINA, BV, LROS (). Degree of protection Conforming to VDE 00 Protective treatment Conforming to IEC 00 TH Amient air temperature around the device Operating positions without derating Storage C Normal operation, without derating (IEC 0--) Minimum /maximum operating temperatures (with derating) In relation to normal vertical mounting plane C C Flame resistance Conforming to UL V Shock resistance Viration resistance () Conforming to IEC 0-- C 0 Permissile acceleration conforming to IEC 00-- Permissile acceleration conforming to IEC 00-- Dielectric strength at 0 Hz Conforming to IEC 0- kv Any position. When mounting on a vertical rail, use a stop. gn - ms gn Surge withstand Conforming to IEC 00- kv Electrical characteristics of power circuit Relay type LRD 0, LR D0 LRD 0 Tripping class Conforming to UL 0, IEC 0-- LRD, LR D LRD LR D LRD L L LRD LR D LR D LRD 0 A 0 0 A 0 A 0 0 A 0 0 A Rated insulation voltage (Ui) Conforming to IEC 0-- V Conforming to UL, CSA V except LRD Rated impulse withstand voltage (Uimp) kv Frequency limits Of the operating current Hz 0 00 Setting range Depending on model A Auxiliary contact characteristics Conventional thermal current A Max. sealed consumption of the operating coils of controlled contactors (Occasional operating cycles of contact -) Protection against short-circuits a.c. supply, AC- V A d.c. supply, DC- V 0 0 By gg, BS fuses. Maximum rating or y GB A A () For relays LRD0 to LRD. () Pending for relays LRD to LRD. () For relays LRD to LRD : gn only with independent plate mounting and gn when mounted eneath the contactor. 0 References: pages /0 to / Dimensions, mounting : pages / to / Schemes: page / /

17 Characteristics (continued) -pole thermal overload relays TeSys D Power circuit connection characteristics Relay type LRD 0, LR D0 LRD 0 Connection to screw clamp terminals Flexile cale without cale end Flexile cale with cale end Solid cale without cale end LRD, LR D LRD LR D LRD L L LRD LR D LR D LRD conductor mm conductor mm except LRD : conductor mm./0 except LRD : / Tightening torque N.m... : : Connection to spring terminals (Min/max c.s.a.) Flexile cale without cale end Flexile cale with cale end Connection y ars or lugs 0 : : conductor mm.. conductor mm.. d d Relay type LRD 0 e L LRD L LRD L' LRD L L Pitch Without spreaders mm..... Bars or cales with lugs e N.m y y y y y L mm y y y. y. y L mm y. y 0 y. y. y d y y y 0 y 0 y LRD A A Screws M M M M M0 Tightening torque N.m... Control circuit connection characteristics Connection to screw clamp terminals or spring terminals Bare cales 0 Relay type LRD 0, LR D0 LRD 0 Connection to screw clamp terminals () Solid cale without cale end mm x. Flexile cale without cale end mm h x. Flexile cale with cale end mm x. Tightening torque N.m. Connection to spring terminals (Min/max c.s.a.) LRD, LR D LRD LR D LRD L L Solid cale mm.. Flexile cale without cale end mm.. LRD LR D LR D LRD () For relays LRD to : BTR hexagon socket head screws, EverLink system. In accordance with local electrical wiring regulations, a size insulated Allen key must e used (reference LAD ALLEN, see page /). References: pages /0 to / / Dimensions, mounting : pages / to / Schemes: page /

18 Characteristics (continued) -pole thermal overload relays TeSys D Operating characteristics Relay type LRD 0, LR D0 LRD 0 Temperature compensation C LRD, LR D LRD LR D LRD L L LRD LR D LR D LRD Tripping threshold Sensitivity to phase failure Conforming to IEC 0-- Conforming to IEC 0-- Tripping curves Average operating time related to multiples of the setting current seconds minutes hours LRD 0 to LRD, LR D and LRD to LRD , Time Class 0 A 0, 0 0 x the setting current (Ir) LRD to LRD A seconds minutes hours. ± 0.0 Ir Tripping current I 0 % of Ir on one phase, the others at Ir. LRD 0 to LRD and LR D to LR D , Time Class 0 0, 0 0 x the setting current (Ir) LRD L to LRD L Time Class 0 A Time Class 0 seconds minutes hours , 0 0 x the setting current (Ir) seconds minutes hours x the setting current (Ir) Balanced operation, -phase, after a long period at the set current (hot state). 0 References: pages /0 to / Dimensions, mounting : pages / to / Schemes: page / /

19 Description, characteristics -pole electronic thermal overload relays, TeSys LR D Description Ir(A) LR D D NO NC LR D electronic thermal overload relays are designed for use with contactors LC D and D0. In addition to the protection provided y TeSys D thermal overload relays (see page /), they offer the following special features: protection against phase imalance, choice of starting class, protection of unalanced circuits, protection of single-phase circuits, alarm function to avoid tripping y load shedding. Class Load Ir(A) V - / Alarm LR D and D NO NC Adjustment dial Ir. Test utton. Stop utton. Reset utton. Trip indicator. Setting locked y sealing the cover. Class 0/class 0 selector switch. Selector for alanced load /unalanced load 0 Environment Conforming to standards IEC 0--, -, -, VDE 00 and EN 0-- UL 0, CSA - Degree of protection Conforming to IEC 0 and VDE 00 Protective treatment Standard version TH Amient air temperature around the device (Conforming to IEC 0-) Storage C Normal operation C () Maximum operating altitude Without derating m 000 Operating positions without derating Shock resistance Viration resistance In relation to normal vertical mounting plane Permissile acceleration conforming to IEC 00-- Permissile acceleration conforming to IEC 00-- Dielectric strength at 0 Hz Conforming to IEC 0- kv Surge withstand Conforming to IEC kv Resistance to electrostatic discharge Conforming to IEC kv Immunity to radiated Conforming to IEC radio-frequency disturances and NF C -0 Immunity to fast transient currents V/m 0 Conforming to IEC kv Electromagnetic compatiility Draft EN 00- and, EN 00- Electrical characteristics of auxiliary contacts Conventional thermal current A Max. sealed consumption of the operating coils of controlled contactors (Occasional operating cycles of contact -) Protection against short-circuits Caling Flexile cale without cale end IP 0 on front panel with protective covers LA D0p or D0p Any position gn - ms gn - 00 Hz Meets requirements a.c. supply V VA d.c. supply V By gg or BS fuses or y circuit-reaker GB W A or conductors mm Minimum c.s.a.: Tightening torque Nm. Maximum c.s.a.:. References: pages /0 to / / Dimensions, mounting : pages / to / Schemes: page /

20 Characteristics (continued) -pole electronic thermal overload relays, TeSys LR D Relay type Electrical characteristics of power circuit Tripping class Conforming to UL 0, IEC 0-- LR D A 0 or 0 Rated insulation voltage (Ui) Conforming to IEC 0-- V 000 Rated impulse withstand voltage (Uimp) Conforming to UL, CSA V 00 Hz Frequency limits Of the operating current Hz 0 0 () Setting range Depending on model A 0 0 Power circuit connections Width of terminal lug mm 0 Clamping screw M Tightening torque N.m Operating characteristics Temperature compensation C Tripping thresholds Conforming to IEC 0-- Alarm A.0 ± 0.0 In Trip A. ± 0.0 In Sensitivity to phase failure Conforming to IEC 0-- Tripping in s ± 0 % in the event of phase failure Alarm circuit characteristics Rated supply voltage d.c. supply V Supply voltage limits V Current consumption No-load ma y Switching capacity ma 0 0 Protection Short-circuit and overload Self protected Voltage drop Closed state V y. Caling Flexile cale without cale end mm 0.. Tightening torque N.m 0. LR D tripping curves Tripping time in seconds 000 () For other frequencies and for applications involving the use of these overload relays with soft Average operating time related to multiples of the setting current , x the setting current (Ir) Cold state curve Hot state curve 0 References: pages /0 to / Dimensions, mounting : pages / to / Schemes: page / /

21 References TeSys D, -pole thermal overload relays LRDpp LRD pp LRD pp LRD pp Characteristics: pages / to / /0 Differential thermal overload relays for use with fuses or magnetic circuit-reakers GV L and GV L Compensated relays with manual or automatic reset, with relay trip indicator, for a.c. or d.c. Relay setting range (A) Fuses to e used with selected relay For use with contactor LC am (A) gg (A) BS (A) Class 0 A () for connection y screw clamp terminals or connectors Reference Weight kg D0 D LRD D0 D LRD D0 D LRD D0 D LRD D0 D LRD D0 D LRD D0 D LRD D0 D LRD 0 0. D0 D LRD D0 D LRD D0 D LRD 0. D D LRD 0. 0 D D LRD D D LRD 0. 0 D D LRD D and D LRD 0. Class 0 A () for connection y EverLink BTR screw connectors () D0A DA LRD 0. 0 D0A DA LRD D0A DA LRD 0. 0 D0A DA LRD D0A DA LRD D0A DA LRD D0A and DA LRD 0. Class 0 A () for connection y screw clamp terminals or connectors 0 0 D0 and D LRD D0 and D LRD D0 and D LRD D0 and D LRD D0 and D LRD D0 and D LRD D0 and D LRD D0 and D LRD D and D0 LRD D and D0 LRD D0 LRD () LRD () LRD () LRD.000 Class 0 A () for connection y lugs Select the appropriate overload relay with screw clamp terminals or connectors from the tale aove and add one for relays LRD 0 to LRD and relays LRD to LRD. A for relays LRD to LRD. Relays LRD pp are suitale, as standard, for use with lug-clamps. Thermal overload relays for use with unalanced loads Class 0 A () for connection y screw clamp terminals or lugs LRD (except LRD ppp) to LR D. Example: LRD 0 ecomes LR D0. Example with EverLink connectors: LRD 0 ecomes LR D0. Example with lugs: LRD 0 ecomes LR D0. R : class 0 A: etween and 0 seconds () Independent mounting of the contactor. () BTR screws: hexagon socket head. In accordance with local electrical wiring regulations, a size insulated Allen key must e used (reference LAD ALLEN, see page /). Dimensions: pages / to / Schemes: page /

22 References (continued) TeSys D, -pole thermal overload relays 0 Differential thermal overload relays for use with fuses or magnetic circuit-reakers GV L and GV L Compensated relays with manual or automatic reset, with relay trip indicator, for a.c. or d.c. LRD pp Relay setting range (A) Fuses to e used with selected relay For use with contactor LC Reference am (A) gg (A) BS (A) Classes 0 A () for connection y spring terminals (only for direct mounting eneath the contactor) Weight kg D0 D LRD D0 D LRD D0 D LRD D0 D LRD D0 D LRD D0 D LRD D0 D LRD D0 D LRD D0 D LRD D0 D LRD D0 D LRD 0.0 D D LRD D D LRD D D LRD 0.0 Class 0 A with connection y EverLink BTR screw connectors() and control y spring terminals D0A DA LRD 0. 0 D0A DA LRD D0A DA LRD 0. 0 D0A DA LRD D0A DA LRD D0A DA LRD D0A and DA LRD 0. Thermal overload relays for use with unalanced loads Classes 0 A () for connection y BTR screw connectors () and control y spring terminals In the references selected aove, replace LRD with LR D. Example: LRD ecomes LR D. Thermal overload relays for use on 000 V supplies Classes 0 A () for connection y screw clamp terminals For relays LRD 0 to LRD only, for an operating voltage of 000 V, and only for independent mounting, the reference ecomes LRD ppa. Example: LRD ecomes LRD A. Order an LA D0 terminal lock separately, see page /. R : class 0 A: etween and 0 seconds () BTR screws: hexagon socket head. In accordance with local electrical wiring regulations, a size insulated Allen key must e used (reference LAD ALLEN, see page /). 0 /

23 References (continued) TeSys D, thermal overload relays 0 Differential thermal overload relays for use with fuses or magnetic circuit-reakers GV L and GV L Compensated relays with manual or automatic reset, with relay trip indicator, for a.c. or d.c. LRD pp Relay setting Fuses to e used with selected relay range (A) am (A) gg (A) BS (A) Classes 0 () for connection y screw clamp terminals For use with contactor LC Reference Weight kg. 0 D0 D LRD D0 D LRD D0 D LRD D0 D LRD 0.0 D D LRD D D LRD D and D LRD D and D LRD LRD ppl 0 D and D LRD 0.0 Class 0 () for connection y EverLink BTR screw connectors () 0 D0A DA LRD L D0A DA LRD L D0A DA LRD L D0A DA LRD L D0A DA LRD 0L D0A DA LRD 0L 0. 0 D0A and DA LRD L 0. LR Dpp Classes 0 () for connection y screw clamp terminals 0 0 D0 and D LR D 0. 0 D0 and D LR D D0 and D LR D D0 and D LR D D0 and D LR D D0 and D LR D D0 and D LR D 0. R : class 0: etween and 0 seconds () BTR screws: hexagon socket head. In accordance with local electrical wiring regulations, a size insulated Allen key must e used (reference LAD ALLEN, see page /). 0 /

24 References (continued) TeSys D, thermal overload relays Differential thermal overload relays for use with fuses or magnetic circuit-reakers NSX Compensated relays, with relay trip indicator, for a.c., for direct mounting on contactor or independent mounting(). Relay setting range (A) Fuses to e used with selected relay am (A) gg (A) Classes 0 or 0A () for connection using ars or connectors For mounting eneath contactor LC Reference Weight kg D and D0 LR D D and D0 LR D 0. Classes 0 () for connection using ars or connectors D and D0 LR D D and D0 LR D 0. Electronic thermal overload relays for use with alanced or unalanced loads Compensated relays, with separate outputs for alarm and tripping. Relay setting range (A) Fuses to e used with selected relay am (A) gg (A) For mounting eneath contactor LC Classes 0 or 0 () selectale, for connection using ars or connectors Reference Weight kg D and D0 LR D D and D0 LR D 0.00 e ordered separately (see page /). R : class 0: etween and 0 seconds, class 0 A: etween and 0 seconds, class 0 A: etween and 0 seconds Other versions Thermal overload relays for resistive circuits in category AC-. 0 /

25 0 /

26 References TeSys D, -pole thermal overload relays LAD Cp LAD B0 LAD 0 LAD 0 LAD Separate components for relays Description For use with Sold in lots of Pre-wiring kit allowing direct connection of the N/C contact of relay LRD 0 or LR D0 D to the contactor Terminal lock () for clip-on mounting on / to / EverLink terminal lock for independent mounting Unit reference Weight kg LC D0 D 0 LAD C () 0.00 LC D D 0 LAD C () 0.00 LRD 0 and LR D0 D LAD B LRD 0 LAD B LRD ppp, LR Dppp, LR Dpp LA D0 () 0.0 LRD pp, LRD ppl and LR Dpp LAD Size Allen key, insulated, 000 V LRD pp, LRD ppl and LR Dpp LAD ALLEN 0.0 Terminal lock adapter for mounting a relay eneath an LC D or D0 contactor Mounting plates () Marker holders, snap-in x mm Bag of 00 lank legends (self-adhesive, x mm) Stop utton locking device Remote Stop or electrical reset device () Remote tripping or electrical reset device () LRD pp, LR Dppp, LRD pp LA D0 () 0.00 LRD 0, LR D0 D, LRD 0 0 DX AP 0.0 LRD ppp, LR Dppp, LR Dpp LA D0 0.0 LRD pp 00 LAD All relays except LRD 0, LR D0 D, LRD pp, LRD ppl and LR Dpp 00 LA D All relays LA D 0.00 All relays except LRD 0, LR D0 D, LR D and LRD LRD LRD 0, LR D0 D and LRD LRD All relays except LRD 0, LR D0 D, LRD pp, LRD ppl and LR Dpp 0 LA D LAD 0p () () 0.00 LA D0p () 0.00 Block of insulated terminals LR D LA F0 0.0 IP 0 cover for lug type terminals for independent mounting LRD LAD IP 0 cover for lug type terminals LRD LAD 0.00 for mounting with contactor LC D0A DA Terminal lock for lug type terminals for independent mounting Remote control Reset function LRD LAD 0.00 Description For use with Sold in lots of (length = 0. m) LRD 0, LR D0 D and LRD LRD All relays except LRD 0, LR D0 D, LRD pp, LRD ppl and LR Dpp Unit reference Weight kg LAD 0 () 0.0 LA D0 0.0 "Stop" and/or "Reset" functions The terminal protection shroud must e removed and the following products must e ordered separately: Adapter for door mounting LRD pp, LR D and LRD pp. LA D Operating heads for spring return pushutton Stop All relays XB AL0 0.0 Reset All relays XB AA0 0.0 () These pre-wiring kits cannot e used with reversing contactors. position. () To order a terminal lock for connection y lugs, the reference ecomes LA D0. () Rememer to order the terminal lock corresponding to the type of relay. () The time for which the coil of remote tripping or electrical resetting device LA D0 or LAD 0 can remain energised depends on its rest time: s pulse duration with s rest time; s pulse duration with 0 s rest time; 0 s pulse duration with 0 s rest time; maximum pulse duration 0 s with a rest time of 00 s. Minimum pulse time: 00 ms. () Reference to e completed y adding the code indicating the control circuit voltage. Volts 0 0/0 0/00 /0 0/0 Hz B E F M Q N Consumption, inrush and sealed: < 00 VA c J B E DD F M Consumption, inrush and sealed: < 00 W. 0 /

27 Dimensions, mounting TeSys D thermal overload relays LRD 0 LRD 0 LRD 0 Direct mounting eneath contactors with screw clamp connections c Direct mounting eneath contactors with screw clamp connections Direct mounting eneath contactors with spring terminal connections c e 0 c LC D0 D D D LC a D0 D a D D c D0 D c D D 0 0 LC D0 D c See pages / and / c 0 0 c See pages / and / e 0 0 LRD LRD Direct mounting eneath contactors LC D0A DA with screw clamp connections or EverLink connectors Direct mounting eneath contactors LC D0A DA with lugs LAD 0 0 LAD 0 Characteristics : pages / to / / References : pages /0 to / Schemes : page /

28 Dimensions, mounting (continued) TeSys D thermal overload relays LRD ppp Direct mounting eneath contactors LC D and D0 LR D Direct mounting eneath contactors LC D and D0 0 d 0 d 0 AM DL00 and DR00 DE00 and EDppp AM DP00 and DR00 DE00 and EDppp d. 0. d. 0. LRD 0 Independent mounting on 0 mm centres or on rail AM DP00 or DE00 Independent mounting on 0 mm centres LAD B0 = = LAD B0 0, 0 0 = 0 DX AP xø, 0 = LRD Mounting on rail AM Dp00 or ED00 Panel mounting Mounted on plate AM P With terminal lock LAD 0 LAD 0 () Outgoing terminal lock not shown LAD 0 AF EA d AM DP00 DE00 ED00 d.. () elongated holes Ø. x. LRD 0 and LRD Remote tripping or electrical reset LAD 0 () 0 () Can only e mounted on RH side of relay LRD0 and LRD Characteristics : pages / to / References : pages /0 to / Schemes : page / /

29 Dimensions, mounting (continued) TeSys D thermal overload relays LRD pp Independent mounting on 0 mm centres or on rail AM DP00 or DE00 Remote tripping or electrical reset LAD B0 = = LA D0 () 0/ 00 d xø, AM DP00 DE00 d. () Can e mounted on RH or LH side of relay LR D. LRD ppp and LR Dpp LRD ppp, LR Dpp and LR D Independent mounting on 0 mm centres or on rail AM DP00 or DE00 Remote tripping or electrical reset LA D0 = 0 = LA D0 (), 00 / d xø,, AM DP00 DE00 d. () Can e mounted on RH or LH side of relay LRD ppp, LR Dpp or LR D. LRD and LRD ppp Adapter for door mounted operator LA D00 Stop Reset c 0 LA D00 c : adjustale from to 0 mm LRD, LRD, LRD and LR D LA D0 and LAD 0 Mounting with cale straight Mounting with cale ent e c 0 e : up to 0 mm c : up to 0 mm e e : up to 0 mm M0x Characteristics : pages / to / / References : pages/0 to / Schemes : page /

30 Schemes TeSys D thermal overload relays LRDpp, LRD pp and LR Dpp Pre-wiring kit LAD C, LAD C Reset Auto Man. Test Stop _ KM A A _ LRD LR Dppp _ KM /L /L /L /T /T /T _ A _ M _ KM L L L () () Test Stop Man. reset. u% () () M N _ KM A A () () Tripped. () Overload. LR D and LR D () Setting current. () Specialised circuit. _ KM L /L + L L () /L /L () + 0 V 0 0 () u0% () Test Stop Man. reset. u% () () /T /T /T M _ A _ M _ KM N _ KM A A () () Tripped. () Overload. () Setting current. () Specialised circuit. () Alarm. 0 Characteristics : pages / to / References : pages /0 to / Dimensions : pages / to / /

31 Presentation -pole electronic thermal overload relays, TeSys LR F Presentation TeSys LR F electronic protection relays are especially suited to the operating conditions of motors. They provide protection against: thermal overload of -phase or single-phase alanced or unalanced circuits; phase failure and large phase unalance, protracted starting times, prolonged stalled rotor condition. LR F electronic protection relays are mounted directly elow an LC F type contactor. They cover a range from 0 to 0 A, in eight ratings. The settings can e locked y sealing the transparent protective cover. A reset utton is mounted on the front of the relay. Two versions are availale: ppp, class 0: LR Fppp, complete version: class 0, 0 A or class 0, selectale, conforming to EN 0--: LR Fpp. This latter version includes an alarm function which makes it possile to forestall tripping y load shedding. 0 0 Ir(A) 0 NO NC Complete version: class 0, 0 A or class 0, selectale, and alarm circuit 0 0 Class Load Ir(A) V - / Alarm NO NC Ir adjustment dial Test utton Stop utton Reset utton Trip indicator Setting locked y sealing the cover Class 0/class 0 selector switch Selector switch for alanced load Alarm circuit /unalanced load 0 Characteristics : pages / to / /0 References : pages / to / Dimensions, schemes : pages / and /

32 Characteristics -pole electronic thermal overload relays, TeSys LR F Environment Conforming to standards IEC 0--, IEC 0-, IEC 0-, EN 0-- and VDE 00 UL 0, CSA - Degree of protection Conforming to VDE 00 IP 0 Conforming to IEC 0 IP 0 on front of relay with accessories LA F0 or LA F0p, see page / Protective treatment Standard version TH Amient air temperature around the device (conforming to IEC 0-) Storage C Normal operation C () Maximum operating altitude Without derating m 000 Operating positions without derating In relation to normal vertical mounting plane Any position Shock resistance Permissile acceleration conforming to IEC 00-- gn - ms Viration resistance Permissile acceleration conforming to IEC 00-- Dielectric strength at 0 Hz Conforming to IEC - kv gn - to 00 Hz Surge withstand Conforming to IEC kv Resistance to electrostatic discharge Resistance to radiated radio-frequency disturance Resistance to fast transient currents Electromagnetic compatiility Conforming to IEC kv (in air) (in indirect mode) Conforming to IEC V/m 0 Conforming to IEC kv EN 00- and, EN 00- Conforming 0 Presentation : page /0 References : pages / to / Dimensions, schemes : pages / and / /

33 Characteristics (continued) -pole electronic thermal overload relays, TeSys LR F Electrical characteristics of power circuit Relay type LR Fp, F Fp, F Fp, F Fp, F Rated insulation voltage (Ui) Conforming to IEC 0- V 000 Rated operational voltage Conforming to VDE 00 gr C V 000 (Ue) Rated impulse withstand voltage (Uimp) Conforming to IEC 0- kv Rated operational current (Ie) A 0 to 0 Fp, F Fp, F Fp, F Fp, F Short-circuit protection and coordination See pages: /, /, /0 and / Frequency limits Of the operating current Hz () Power circuit connections Width of terminal lug mm 0 0 LR Fp 0 and LR F 0 LR Fp and LR F Clamping screw M M M0 M0 M Tightening torque N.m 0 Auxiliary contact electrical characteristics Conventional thermal current A Short-circuit protection Control circuit connections Maximum sealed current consumption of the coils of associated contactors (occasional operating cycles of contact -) By gg or BS fuses or y circuit-reaker GB CD0 Flexile cale with cale end Flexile cale without cale end A Min. Max. conductor mm x 0. x. conductors mm x x. conductor mm x 0. x conductors mm x x. Solid cale conductor mm x 0. x. conductors mm x Tightening torque N.m. a.c. supply V VA d.c. supply V W () For applications involving the use of these overload relays with soft starters or variale speed 0 Presentation : page /0 / References : pages / to / Dimensions, schemes : pages / and /

34 Characteristics (continued) -pole electronic thermal overload relays, TeSys LR F Operating characteristics Tripping class Conforming to IEC 0-- 0, 0 A and 0 Temperature compensation C Reset Manual on front of relay Fault indication Test function Stop function On front of relay On front of relay Actuation of N/C contact, without affecting N/O contact Tripping thresholds Conforming to IEC 0-- Alarm A.0 ± 0.0 In Tripping A. ± 0.0 In Sensitivity to phase failure Adjustment (nominal motor current) Security sealing Conforming to IEC 0-- Tripping in s ± 0 % in the event of phase failure Setting dial on front of relay Yes Alarm circuit characteristics Rated supply voltage d.c. supply V Supply voltage limits V Current consumption No-load ma y Switching current ma 0 0 Protection Short-circuit and overload Auto-protected Voltage drop Closed state V y. Connection Flexile cale without cale end mm 0.. Tightening torque N.m 0. LR F tripping curve Average operating times depending on multiples of the setting current Class 0 Class 0 Tripping time in seconds 000 Tripping time in seconds , x times the setting current (Ir) 0, x times the setting current (Ir) Cold state curve Hot state curve 0 Presentation : page /0 References : pages / to / Dimensions, schemes : pages / and / /