Varistor Stack Core Varistor Mandril for Metal Oxide Surge Arresters

Product Description

 

Production Description

The zinc oxide varistor installed within arresters, it has excellent nonlinear volt-ampere characteristic. In normal operating voltage, it displays large resistance, its leakage current is only microampere grade. While over-voltage appear, it translates low resistance immediately, releases energy and limits over-voltage range, it resumes large resistance immediately after over-voltage disappear, and ensures electric power system running safely.
Wortai Electric has manufactured the zinc oxide varistor for more than 20 years. The quality of our products is one-up in china, its residual voltage ratio is little and ageing performance is excellent. 

 Wortai Electric has manufactured the zinc oxide varistor for more than 20 years. The quality of our products is one-up in china, its residual voltage ratio is little and ageing performance is excellent.
 

Advantages

* Superior capability to withstand overvoltages
* Minimal current leakage at continuous operating voltage
* Stable ageing performance.
* High current withstand capability;  
* Excellent non-linear characterics
* Full face metalized electrodes  
* Meets IEC and ANSI standards 
*100% production tested 
* ISO 9001 certified factory  
* Customizable ratings (Ur) of 1kV,1.5kV,3 kV, 4.0 kV,4.5kV,6kV IEC
* Nominal deischarge current (In): 5 kA, 10 kA and 20kA
* IEC Line discharge class 1 - 5
 

Technical data

 

Type Code	Dimension		Rated Voltage Ur (kV)	Nominal discharge current In (kA)	MCOV		Current Impulse Withstand		IEC Line Discharge Class
	Dia. (mm)	Ht. (mm)			As per IEC	As per ANSI/IEEE	Rectangular 2ms (A)	High current 4/10μs (kA)
					(kV)	(kV)
MOV3121	31	21	3	5.00	2.40	2.55	150	65	/
MOV3521	35	21	3	5.00	2.40	2.55	200	65	/
MOV3821	38	21	3	5.00	2.40	2.55	300	65	/
MOV5221R*	52	21	3	10.00	2.40	2.55	250	65	/
MOV4021	40	21	3	10.00	2.40	2.55	300	100	1
MOV4221	42	21	3	10.00	2.40	2.55	350	100	1
MOV4622	46	22	3	10.00	2.40	2.55	500	100	2
MOV4822	48	22	3	10.00	2.40	2.55	550	100	2
MOV5122	51	22	3	10.00	2.40	2.55	600	100	2
MOV5622	56	22	3	10.00	2.40	2.55	700	100	2
MOV6022	60	22	3	10.00	2.40	2.55	800	100	2
MOV7122R*	71	22	3	10.00	2.40	2.55	1000	100	3
MOV7122	71	22	3	10.00	2.40	2.55	1200	100	3
MOV8122	81	22	3	20.00	2.40	2.55	1500	100	4
MOV9522	95	22	3	20.00	2.40	2.55	2000	100	5
MOV11522R*	115	22	3	20.00	2.40	2.55	2200	100	5
MOV12822R*	128	22	3	20.00	2.40	2.55	2700	100	5
MOV12822	128	22	3	20.00	2.40	2.55	3000	100	5

* The MOV Block with a circular hole in the middle
Different rated voltages can be customized according to needs
 

Production show

Test and Inspection Equipments

Packing and Delivery

Certifications

WORTAI Album

Why Choose WORTAI

* More than 20 years manufacturing experience in electric power industry
* Top quality products, ISO9001, ISO14001, KEMA, CNAS certificates
* Custom tailored products, OEM & ODM are welcome
* Challenging prices for giving customers the greatest benefits
* Fast response time, we promise to reply customer's email within 24 hours
* Attractive lead times, plenty of equipments and workers to ensure the delivery on time
* Top skilled technicians
* Flexibility

WORTAI have been sold to over 20 countries and regions, spread all over Asia, Africa,
Middle & South America, Middle East and Europe, we also has done OEM service for some world famous brands.Choosing WORTAI means
being one step ahead of the general development. We look forward to a closer relationship and mutually beneficial cooperation with
any prospective customers in the near future. WORTAI will work with you shoulder-to-shoulder to satisfy your needs.
With competitive price, good quality and best service, WORTAI will be your most wise choice. Together we're winners! Let's do it right now!