Electrical installation solutions for buildings Technical details Arc Fault Detection Devices
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1 /1 Electrical installation solutions for buildings Technical details Arc Fault Detection Devices Index Functions and classification criteria for AFDD /2 Power loss, derating and performance in altitude / Specific let-through energy I 2 t S-ARC1 and S-ARC1 M /4 Ipeak S-ARC1 and S-ARC1 M /5 Coordination tables: S-ARC1, S-ARC1 M back-up /4 Coordination tables: S-ARC1, S-ARC1 M selectivity /6
2 /2 ELECTRICAL INSTALLATION SOLUTIONS FOR BUILDINGS - TECHNICAL DETAILS 2CHC C0201 Functions and classification criteria for AFDD Functions and classification criteria for AFDD An AFDD (Arc Fault Detection Device) according to the product standard IEC General requirements for Arc Fault Detection Devices is a device intended to mitigate the effects of arcing faults by disconnecting the circuit when an arc fault is detected: this product standard is partially derived from the UL 1699 standard. Three different type of products are described in IEC standard: AFDD in series with protection device: AFDD as one single device, comprising an AFD unit and opening means and intended to be connected in series with a suitable short circuit protective device declared by the manufacturer complying with one or more of the following standards IEC , IEC 69-1 or IEC series. Integrated solution: AFDD as one single device, comprising an AFD unit integrated in a protective device complying with one or more of the following standards IEC , IEC 68-1, IEC 69-1 or IEC AFDD + protection device assembled on site: AFDD according to Annex D, comprised of an AFD unit and a declared protective device, intended to be assembled on site. AFDD can guarantee protection against all types of arc faults: u Line to Ground u Parallel Arc 75 A u Series Arc 5A Eart arc fault current is folowing from active conductor to the earth Parallel arc fault current is folowing between active conductors in parallel with the load of the circuit Series arc fault current is folowing within one conductor of the final circuit Different levels of protection RCDs are recognized efficient to reduce the risk of fire by detection of leakage current and arcing to ground as a consequence of tracking currents within an electrical installation. For this reason RCDs can detect only earth arc faults. Circuit breaker (MCB) L N MCB Load RCD (RCBO) L N RCD Load During a series and parallel arc fault, there is no leakage to ground therefore RCDs can t detect such a fault. RCDs as fuses or circuit-breakers are not able to reduce the risk of electrical fire due to series or parallel arcing between live conductors. In order to ensure a complete protection against arc faults, it is required the installation of an AFDD. PE Protection against: Overcurrent (short circuits, overload) S-ARC1 AFDD with integrated miniature circuit breaker L N PE AFDD + MCB Load Protection against: Overcurrent (short circuits, overload) Serial and parallel arc faults Earth arc faults PE Protection against: Overcurrent (short circuits, overload) Earth faults currents Earth arc fault RCD and S-ARC1 AFDD with integrated miniature circuit breaker L N PE RCD + AFDD + MCB Load Protection against: Overcurrent (short circuits, overload) Earth faults currents Serial, parallel and earth arc faults Maximum Protection
3 / Power loss, derating and performance in altitude Voltage drop, Internal resistance, Power loss and own consumption for S-ARC1 series In [A] Voltage drop [mv] Internal Resistance [mω] Power loss [W] Own consuption [W] , 2, 0, , 2 0, ,8 2,2 0, ,9 2,8 0, ,1,6 0,5 Derating in temperature for S-ARC1 series Max operating current depending on the ambient temperature of a circuit breaker in load circuit of characteristics type B and C. Daily average ambient temperature is intended to be +5 C. Curve B, C Temperature [ C] In (A) ,2 6,8 6,4 6, 6, ,8 5, ,2 11,9 10,8 10,7 10,5 10, ,8 9,6 1 15,6 15,2 14,2 1,8 1,4 1,2 1 12,9 12,7 12, ,5 18,9 17,9 17, 16,7 16, 16 15,8 15,5 15, , ,4 21, , ,8 19,5 19,4 Performance in altitude for S-ARC1 series Elevation [m] Rated Current [A] 0,96 x In 0,94 x In 0,92 x In 0,90 x In Rated Voltage [V] 0,877 x Un 0,775 x Un 0,676 x Un 0,588 x Un For altitude higher then.000 m the isolating characteristic is no longer available. Influence of adjacent devices Number of devices 1 1 0,92 5 0,88 7 0,85 9 0,84 Correction factor
4 /4 ELECTRICAL INSTALLATION SOLUTIONS FOR BUILDINGS - TECHNICAL DETAILS 2CHC C0201 Specific let-through energy I 2 t S-ARC1 and S-ARC1 M I 2 t S-ARC1 Tripping acteristics B I 2 t S-ARC1 Tripping acteristics C 01 B20 B16 B1 B10 B6 02 C20 C16 C1 C10 C I 2 t S-ARC1 M Tripping acteristics B I 2 t S-ARC1 M Tripping acteristics C 0 B20 B16 B1 B10 B6 04 C20 C16 C1 C10 C6
5 /5 Ipeak S-ARC1 and S-ARC1 M Ipeak S-ARC1 Tripping acteristics B Ipeak[A] 0 Ipeak[A] 0 02 Ipeak S-ARC1 Tripping acteristics C B20 B16 B1 B10 B6 C20 C16 C1 C10 C Ipeak S-ARC1 M Tripping acteristics B Ipeak[A] 0 Ipeak[A] 0 04 Ipeak S-ARC1 M Tripping acteristics C B20 B16 B1 B10 B6 C20 C16 C1 C10 C6 0 04
6 /6 ELECTRICAL INSTALLATION SOLUTIONS FOR BUILDINGS - TECHNICAL DETAILS 2CHC C0201 Coordination tables: S-ARC1, S-ARC1 M back-up Fuses - 20/240V gl/gg Load S. Icu [ka] In[A] S-ARC1 B,C MCCB@415V - Downstream Upstream XT1 XT1 XT1 XT2 XT XT4 XT1 XT2 XT XT4 XT1 XT2 XT4 XT2 XT4 XT2 XT4 B C N N N N S S S S H H H L L V V Icu [ka] In[A] S-ARC1 B,C T1 T1 T1 T2 T T4 T2 T T4 T2 T4 T2 T4 T4 B C N N N N S S S H H L L V Load S. Icu [ka] In[A] S-ARC1 B,C S800S - 20/240V S800S B,C,D,K Load S. Icu [ka] 50 In[A] S-ARC1 B,C S800N - 20/240V S800N B,C,D Load S. Icu [ka] 6 In[A] S-ARC1 B,C
7 /7 S800C - 20/240V S800C B,C,D,K Load S. Icu [ka] 25 In[A] S-ARC1 B,C S800B - 20/240V S800B B,C,D,K Load S. Icu [ka] In[A] * S-ARC1 B,C *Only S800B B,C S200 - S200 S200M S200P S200P B-C B,C B,C B,C Load S. Icu [ka] S-ARC1 B,C 7.5 and 10 In[A] 0, DS201 - DS201 B,C Load S. In[A] 2 40 Icu [ka] 10 S-ARC1 B,C and 10 10
8 /8 ELECTRICAL INSTALLATION SOLUTIONS FOR BUILDINGS - TECHNICAL DETAILS 2CHC C0201 Coordination tables: S-ARC1, S-ARC1 M selectivity Fuse gl/gg- 20/240V Fuse gl/gg Load S. Icu [ka] In[A] T T T T T T T T S-ARC1 B,C 7, T T T T T T T T T T T T T T T T T T T T T T T MCCB@415V - XT1 Version B,C,N,S,H Release TM Load S. Icu [ka] In[A] T T T T T T T T T T T 10 4,5 T T T T T S-ARC1 B,C 7,5 1 4,5 5 T T T T 16 4,5 5 T T T T 20 5 T T T T T T T T T 10 4,5 7,5 8,5 T T T 1 4,5 5 7,5 T T T 16 4,5 5 7,5 T T T T T T MCCB@415V - Load S. Icu [ka] S-ARC1 B,C 7,5 S- ARC1 M B,C 10 Supply S. Version Release TM XT2 N,S,H,L,V In[A] T T T T T T T T T T T T T T T ,5 T T T T T T T T T 1 1 4,5 5 T T T T T T T ,5 5 T T T T T T T T T T T T T T 6 T T T T T T T T T T T T T T T ,5 7,5 8,5 T T T T T T T 1 1 4,5 5 7,5 T T T T T T ,5 5 7,5 T T T T T T T T T T T T EL 1 Value valid in case of breaker only magnetic
9 /9 - XT Version N,S Release TM Load S. Icu [ka] In[A] ,5 6 T T T T T T T 10 T T T T T T T S-ARC1 B,C 1 5 T T T T T T 16 5 T T T T T T 20 5 T T T T T T 10 6 T T T T T T T 10 7,5 8,5 T T T T T S-ARC1 M B,C 1 5 7,5 T T T T T ,5 T T T T T T T T T T MCCB@415V - Load S. Icu [ka] S-ARC1 B,C 7,5 S- ARC1 M B,C 10 Supply S. XT4 Version N,S,H,L,V Release TM EL In[A] T T T T T T T T T T T T T T T T T T ,5 T T T T T T T T T T T T 1 1 4,5 5 T T T T T T T T T T T ,5 5 T T T T T T T T T T T T T T T T T T T T T T 6 T T T T T T T T T T T T T T T T T T ,5 7,5 8,5 T T T T T T T T T T 1 1 4,5 5 7,5 T T T T T T T T T T ,5 5 7,5 T T T T T T T T T T T T T T T T T T T T 1 Value valid in case of breaker only magnetic
10 /10 ELECTRICAL INSTALLATION SOLUTIONS FOR BUILDINGS - TECHNICAL DETAILS 2CHC C0201 Coordination tables: S-ARC1, S-ARC1 M selectivity MCCB@415V - T1 Version B,C,N Release TMD Iu[A] 160 Load S. Icu [ka] In[A] T T T T T T T T T T T 10 4,5 T T T T T S-ARC1 B,C 7,5 1 4,5 5 T T T T 16 4,5 5 T T T T 20 5 T T T T T T T T T 10 4,5 7,5 8,5 T T T 1 4,5 5 7,5 T T T 16 4,5 5 7,5 T T T T T T MCCB@415V - T2 Version N,S,H,L Release TMD EL Iu[A] Load S. Icu [ka] In[A] T T T T T T T T T T T T T T T 10 4,5 T T T T T T T T T S-ARC1 B,C 7,5 1 4,5 5 T T T T T T T 16 4,5 5 T T T T T T T 20 5 T T T T T T T 6 T T T T T T T T T T T T T T T 10 4,5 7,5 8,5 T T T T T T T 1 4,5 5 7,5 T T T T T T 16 4,5 5 7,5 T T T T T T T T T T T T
11 /11 - T Version N,S Release TMD, MA Iu[A] 250 Load S. Icu [ka] In[A] S-ARC1 B,C 7,5 T T T T T T T T T T T T T T 5 T T T T T T 5 T T T T T T 5 T T T T T T T T T T T T T 7,5 8,5 T T T T T 5 7,5 T T T T T 5 7,5 T T T T T 5 6 T T T T T S800N/S - Load S. S-ARC1, S-ARC1 M B,C S800N-S B Icu [ka] 6-50 In[A] ,5 and S800N/S - Load S. S-ARC1, S-ARC1 M B,C S800N-S C Icu [ka] 6-50 In[A] ,5 and
12 /12 ELECTRICAL INSTALLATION SOLUTIONS FOR BUILDINGS - TECHNICAL DETAILS 2CHC C0201 Coordination tables: S-ARC1, S-ARC1 M selectivity S800N/S - S800 N-S D Load S. Icu [ka] 6-50 In[A] B,C T T T S-ARC1 7, T T T T T T T T T T T S700 - Load S. S-ARC1, S-ARC1 M B,C S700 E Icu [ka] 25 In[A] T T T T T T T T 10 T T T T T T T T 7,5 and 10 1 T T T T T T T 16 T T T T T T T 20 T T T T T T
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