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High-voltage fuse

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High-voltage fuse

This product is suitable for indoor AC 50Hz systems with rated voltages of 3.6kV, 7.2kV, and 12kV. It can be used in conjunction with other protective devices (such as switches and vacuum contactors) as a protective component for overloads or short circuits in high-voltage motors and power equipment.

Basic Parameters:

(1) Basic parameters of busbar fuse appearance

Model	Equivalent model	Rated voltage(Kv)	Rated voltage of fuse link(A)	Rated breaking current(kA)	Overall dimensions
XRNM-3.6	WDF*0	3.6	50,63,80,100,125	50	Φ51*254 (Electric porcelain)
	WFF*0		125,160,200		Φ76*254 (Electric porcelain)
	WKF*0		250,315,355,400		Φ76*254 (Epoxy)
XRNM-7.2	WFN*0	7.2	25,31.5,40,50,63,80,100,125,160,200,224		Φ76*403 (Electric porcelain)
	WKN*0		250,315		Φ76*403(Epoxy)
	WXN*0		355,400		Φ88*403 (Epoxy)
XRNM-12	WFX*0	12	25,31.5,40,50,63,80,100,125,160		Φ76*567(Electric porcelain)
XRNM-12	WXX*0	12	200,224,250		Φ88*567(Epoxy)

(2) Basic parameters of the appearance of German DIN standard plug-in fuses

Model	Equivalent model	Rated voltage(Kv)	Rated voltage of fuse link(A)	Rated breaking current(kA)	Overall dimensions
XRNM-7.2	WDL*J	7.2	25,31.5,40,50,63	50	Φ51*292 (Electric porcelain)
	WFL*J		50,63,80,100		Φ76*292 (Electric porcelain)
	WKL*J		125,160		Φ76*292(Epoxy)
	WXL*J		160,200,224,250,315		Φ88*292(Epoxy)
	WFM*J		25,31.5,40,50,63,80,100,125,160		Φ76*442 (Electric porcelain)
	WKM*J		200,224,250,315		Φ76*442(Epoxy)
XPNM-12	WDL*J	12	25,31.5,40,50,63		Φ51*292 (Electric porcelain)
	WFL*J		50,63,80,100		Φ76*292 (Electric porcelain)
	WKL*J		125,160		Φ76*292(Epoxy)
	WXL*J		160,200		Φ88*292(Epoxy)
	WFM*J		25,31.5,40,50,63,80,100		Φ76*442 (Electric porcelain)
	WKM*J		125,160		Φ76*442(Epoxy)
	WXM*J		200,224		Φ88*442(Epoxy)

Note: 1. The above are the rated parameters of a single tube. According to the user's needs, a fixed structure can be used to connect the fuse elements in parallel, which can achieve high performance

Rated current value.

2. * Determined by whether an impactor is installed.

Appearance and installation dimensions:

(1) Outline and installation dimensions of busbar fuses (see Table 4 and Figure 3)

Table 4

Model	External dimensions and installation dimensions
Model	A	B	C	D
XRNT-.36	337	254	305	Le<125A D=φ51 Le≥125A D=φ76
XRNT-7.2	486	403	454	Le≤315A D=φ76 Le>315A D=φ88
XRNT-12	649	567	618	Le≤160A D=φ76 Le>160A D=φ88

(2)Insertion-type fuse dimensions and installation dimensions (see Table 5 and Figure 4)

Table 5

Model	Size	Size Code	A	B	C	D	E	F	G	H
WDF*O (XRNM-3.6C)			340	312	80	160	210	254	Φ51	261
WFF*O (XRNM-3.6C)									Φ76	280
WKF*O (XRNM-3.6C)
WFN*O (XRNM-7.2C)			500	461	150	160	360	403	Φ76	280
WKN*O (XRNM-7.2C)
WFX*O (XRNM-7.2C)			664	625	30	160	525	567	Φ76	280

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