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Square Pipe Fuse Links With Knife Contacts

Square Pipe Fuse Links With Knife Contacts - Fuse Links & Holders Square Pipe Fuse Links With Knife Contacts - Fuse Links & Holders

Applications: 
Protection against overload and short-circuit in electric lines(type gG), also available for protection of semiconductor parts and equipments against short-circuit(type R) and protection of motors(type aM).Rated voltage up to 1140V,Rated current up to 1250A; Working frequency 50Hz AC; Rated breaking capacity up to 120KA. Compliant with GB13539 and IEC269. 

Dsign Features:
Varilable cross-section fuse element made from pure metal sealed in cartridge made from high-duty ceramic. Fuse tube filled with chemically treated high-purity quartz sand as arc-extinguishing medium. Dot-welding of fuse element ends to the terminals ensures reliable electric connection and forms insert knife type contacts. Indicator or striker may be attachend to the fuse link to show cutout of fuse or to give various signals and to cut the circuit automatically.
 
Specification:

Cat NO. Models Rated Voltage(V) Rated Current(A) Dimensions/size(mm) Weight(g)
HRO Cross-reference
gG(Normal) aR(Fast) gG(Normal) aR(Fast) A B C D E F G H
327 RO34K RS34K   3NC8 500/660 150-630 140 68 32 70 108 10.5 6 85 810
328 RO38 RS38   3NE3626   200-630 160 86 32 70 126 11.8 6 81.5 1050
329 RO39 RS39 NT4RT17   500 500-1250 200 90 50 97 150 16.5 8 110 2470
330 RO39B RS39A NT4BRT17   500 500-1000 200 79 50 87.5 150 17 8 114.5 2100

Square Pipe Fuse Links With Knife Contacts - Fuse Links & Holders