W-Type Current-Limiting Fuses for Motor Protection

Prod Model:	XRNMI
Markets:	North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Material:	Porcelain
Color:	White,Brown
Length:	254/403/600mm
Rated Current:	25-224A
Diameter:	51/76mm
Rated Voltage:	7.2kv
Usaga:	High Voltage
Breaking Capacity:	High Voltage Circuit Breakers
Type:	Fuse
Shape:	Circular Cylinder
Standard:	IEC

Product Description

Applications

H. V current-limiting fuses type W is mainly used in AC50Hz, rated voltage 3.6~10KV, rated current up to 400A(3.6KV),224A(7.2KV) circuit for protection transformers and power equipments from overload and short-circuit. It can also be used with load switch, vacuum contact.
It conforms to IEC282-1, IEC644,BS and GB15166.2 standard.

Design Features

W type H. V HRC current-limiting fuses has two installation:bus-bar installation snd insert installation.it is small in volume,reliable in connection the power striker parallels to the fuse element made from pure silver .they are sealed. in the fuse tube filled with chemically treated high -purity quarta sand.it is made from heat resistand.high duty ceramic or epoxy glass.when fault circuit happens the fuse link metlts.the high resistant metal wire paralleling to fuse link melts immediatedly at the appearamce of the arc.and the strikerjumps out to push the chained equipment contact.signaling the melting or automatically cutting the circuit.W type H.V HRC current limiting fuse has many merits as high current limiting ability .high breaking capacity.quick and punctual in action.reliable in performance


Key Specifications/Special Features:
1.motor protection
2.High breaking capability
3.High voltage current limiting fuse
4.Suitable for electrical power system of AC 50Hz, rated voltage 10kV and below, rated current up to 400A(3.6KV),224A(7.2KV) circuit for protecting motor and other power equipment from overload and short-circuit.
5.High-pressured fuse conforms to the national GB15166.2 standard and the international electrical committee IEC 60282 standard as well as German DIN standard and British BS standard.

Foreign model	Department	Rated voltage(KV)	Rated current(A)	Rated breaking current(KA)	Diameter(mm)	Length(mm)
WDF.O	XRNMI	3.6	50,63,80,100,125	50	51	254
WFF.O	XRNMI	3.6	125,160,200	50	76	254
WKF.O	XRNMI	3.6	250,315,355,400	50	76	254
WFN.O	XRNMI	7.2	25,31.5,40,50,63,80,100,125,160	40	76	403
WKF.O	XRNMI	7.2	200,224	40	76	403
	XRNMI	10	25,31.5,40,50,63,80,100,125,160,200,224	40	76	600