Zinc-oxide varistor

Zinc-oxide varistor 1.Used:arrester and insulators 2.Diameter:35mm 3.Residual Voltage at1mA 4.5-5KV 4.used for arrester Zinc-oxide varistor

Metal Oxide Varistor is the core of the arrester.

Metal Oxide Varistor is the core of the arrester, which main component is Zinc Oxide and with a small quantity of bismuth Oxide, fluoride oxide, manganous carbonate, antimony oxide and other gleam of additive and made with high temperature.

As zinc oxide varistor has a good voltage-ampere (Non-linearity) characteristic, hence the zinc oxide varistor is a very important components applied to surge arrester

Features of the MOV Disks: Excellent non-linear characteristicsFull face metalized electrodesMeets IEC and ANSI standards 100% production tested ISO 9001 certified factory Available in ratings (Ur) of 1kV,1.5kV,3 kV, 4.0 kV,4.5All ratings available in 5 kA and 10 kA (IEC Class 1) disks

Type	Dimension(mm)		Nominalstandard discharge current(KA)	Rated voltage(KV)	MCOV(KV)	8/20μSLightning impulse residual volage (KV)	Square wave impulse current withstand 2000μS(KA)	High current impulse 4/10μS(A)	Line class
	Diameter	Height
D35	φ35±0.2	24±0.5	5	3-3.4	2.55	9.1	100	65	-
D38	φ38±0.2	24±0.5	10	3-3.4	2.55	9.3	200	65	-
D42	φ42±0.2	24±0.5	10	3-3.4	2.55	9.2	250	100	-
D53	φ53±0.2	24±0.5	10	3-3.4	2.55	8.9	400	100	1

 

Specification			MOV35×25	MOV35×31
Diameter		mm	35±1	35±1
Thickness		mm	25±1	31±1
D.C. reference voltage (U1mA)		kV	5.6±0.3	6.8±0.3
Leakage current under 75%U1mA		uA	<10	<10
Max. ratio of residual voltage    (8/20us)			1.78    @5kA	1.78    @5kA
Current impulse withstand capability	4/10us	kA	65	65
	2ms	A	150	150
Recommended rated voltage		kV	3.8	4.5
Recommended continuous operating voltage		kV	3.0	3.6

Zinc-oxide varistor