a < " 4 u tcjse LINKS '* ;;*

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1 tcjse LINKS '* ;;* u a < Description: Fuse-links are the oldest protective devices in the electrical industry. The protection by fuses is based on the principle a piece of wire melting at the point of defect of an electric circuit. For this purpose a sufficient amount of energy is necessary, which is called the Joule integral l t. In order to adapt the fuse-links to specific protection requirements, various time current s have been developed. A time current is a graphical representation of the melting time as a function of the overload current. The type of fuse is chosen based on the operational range of the fuse and the type of object under protection. Marks: Fuse marking consists of two letters where the first letter denotes the function class and the second the type of facility under protection. Example: gl; g: protects a facility across the entire current axis; L: the facility under protection is electrical installation. Function class of fuses It determines the range on the current axis for which a fuse-link is capable of breaking a circuit. Function class g: The entire range of operation of a fuse. Fuse-links continuously conduct rated currents and in case of a defect in the circuit they break all currents from the lowest melting current up to the highest breaking capacity (protection against overload and short circuits). Function class a: These fuses provide limited range of protection. Fuse-links conduct continuously the rated currents and in case of a defect in the circuit they break all currents from a multiple of rated current up to the breaking current (protection against short circuits). Facilities under protection: L: cables and mains B: mining equipment M: switching devices R: semiconductors T: transformers The types of fuse-links used for protection of the specified objects gl: total range of protection - cable and mains am: partial range of protection - switching devices : partial range of protection - semiconductors : total range of protection - semiconductors gb: total range of protection - mining equipment gtr: total range of protection -transformers Semiconductors in rectifiers require quick fuse-links of type and for protection. LTRA-QICK fuse-links comply with the following regulations: VDE 03/3, VDE 03/33, IEC 9, DIN 3, DIN, DIN3, DIN 9. The requirements with which fuse-links for protection of semiconductors must comply are: -high breaking capacity and quick action -high current limitation -low heat values -they should not be subject to ageing LTRA QICK fuse-links provide optimum protection of semiconductors, being used for special purposes: A: Ipoi^ IMV The current passing through the semiconductor must be smaller or the same as the rated current of the fuse-link. Here you have to consider special ways of load (periodical, non-periodical, uniform, non-uniform) and other influences (thermical influences, cooling). ^* B: poi ^ m The operating voltage on the semiconductor must be smaller or the same as the rated voltage of the fuse-link. In case of doubt the rated voltage of the semiconductor element to be protected can be used as a guideline. C:/i Poidt>/i Ntvdt The total Joule-integral of the chosen fuse-link l dt must be lower than the limit integral of the semiconductor. If this data is not directly stated, it can be calculated from the data for the maximum permissible surge forward current for the duration of one-half period (ms)-l TSM in the following way: Ji POL dt D: IK < litv The highest possible surge forward current of the short circuit which can appear in a circuit must be lower than the rated breaking \ \ capacity of the fuse-link, E: RRM > L DRM > i The switching voltage (arc voltage) of the fuse-link must be lower than the repetitive peak voltage of the semiconductor in the negative or positive direction. DO " u at Fuse-link D 01 LTRA-QICK for base E 1 -rw^ri 1 ft^hifilsei pic-silpiras pink brawn green grey /0 /0 /0 /0 /0 - - (0D),3,3,3 8, 9,

2 Fuse-link D 0 LTRA-QICK for base E IS SH brown black white copper (9) /0 /0 /0 /0 /0 '0/ "--',9 1.1,3 1, 1.9 < '- > \ \ k 0 D» Technical data: I * values DO LTRA-QICK fgtks Fuse-link Rated voltage N Rated current IN Breaking capacity 11 Fusing D 01/D 0 LTRA QICK 00 V~/ V j ka~/8ka - Rated current (A) Ifei: SsA 0 Hr-i 3 Melting integral (A *s) P D, Fuse-link D I LTRA-QICr for base E ie tl^finr '.- pink brown green grey yellow /0 0/0 0/0 0/0 0/0 0/0 0/ ? w Fuse-link D II LTRA-QICK for base E pink brown green grey yellow black Fuse-link D III LTRA-QICK for base E 33 - $ black white copper i

3 & Fuse-link D IV LTRA-QICK for base RI W silver * 1 /0 /0 Fuse-link D V LTRA-QICK for base R -lpplg yellow copper 1 1 /0 /0 /0 9 u, a I - values D LTRA-QICK Rated current (A! Melting integral (A *s) Max. total integral (A, s) at 1 V at V gpv^ , - : tafe 8 1.,8 8, ,8,1 ~-"*tifgi= fe ^0BM 3, s=ifr~ rtssft."-'"; 0 at 0 V -w J^"* = _a# Tife~3 90 -'smk't' fi S: 00 -."PSSPi ; c 3SMft ~ Technical data: Fuse-link Rated voltage N Rated current IN Breaking capacity h Fusing DI.DII, Dill, DIV.DV, LTRA QICK 0V /V - -00A ka~/ 8 ka - ^ HRC Fuse-links HRC LTRA-QICK can be delive in two executions: and. The execution is suitable for direct screw mounting and the execution has a knife contacts to be used in standard HRC bases. Fuse-link HRC 00 C LTRA-QICK' &>&c) Q f) >,, <"" 3 i^ja Y / 0 y coden " SSffc'-

4 y Fuse-link HRC 00 LTRA-QICK" codel\ Fuse-linkHRC 0 LTRA-QICK 1 1 i,0 ^" flr Fuse-link HRC 1 LTRA-QICK* 3 0 SJ^ ^ 0 00 cade Nc ' / 3/ 3/ 3/ 3/ 3/ 3/ 3/ 3/ Fuse-link HRC LTRA-QICK ,8 0,8 0,8 0,8 0,8 0,8 0,8 0,8 0,8 0,8 t

5 \w I!L! ^ ~ - I pm llp*! _ '*HI Fuse-link HRC 3 LTRA-QICK Fuse-link HRC 1-00V LTRA-QICK N(A) S*. 0.9 values HRC LTRA-QICK IN(A) NVDOC Melting integral (A *s) Max. total integral max. gesamtes Integral (A *s) at 1 V at 3 V at 0 V NV NVO N»

6 I ' values HRC LTRA-QICK Melting integral (A *s) Max. total integral max. gesamtes Integral (A *s) at 1 V at 3 V at 0 V NV NV ' Technical data: Rated voltage N Breaking capacity h Fusing IN 90 V~/ 0 V : ka~/ ka.,lfn= 00 V-/ 00 V Dimension figures o NVOOC NVOO NVO NV1 NV NV3 aewrvstfigs! -A- " 0E3S Sjp.ijjjjjl SHffi %g&mm "-S. it-bill j^sp= iiiiiij 9 C =piii , 1, iiplpl J B u I I D ( - * 1 '. vt rtd := u 1 It, E *j " 1, -&,