Voltage Power Surge Protector Metal Oxide Varistor Class I 22S-U-LV U1MA(V):80-1800 UAC:60-1000.

Product Tags: Metal Oxide VaristorOvervoltage ProtectionSurge AbsorberSurge ProtectorVDRVoltage Dependent ResistorZinc Oxide Varistor.

Features

■ Fast responding to transient over-voltage.

■ Large absorbing transient energy capability.

■ Low clamping ratio and no follow-on current.

■ Meets MSL level 1, per J-STD-020.

■ Operating Temperature：-40℃ ~ +105℃&-40℃ ~ +125℃.

■ Storage Temperature：-40℃ ~ +125℃.

■ Agency recognition: UL 1449 4th /cUL/CQC Applications.

■ Power supply, Telecommunication, Smart meter, or PLC protection.

■ Surge protection in consumer electronics.

■ Surge protection in industrial electronics.

■ Surge protection in electronic home appliances, gas and petroleum appliances.

■ Relay and electromagnetic valve surge absorption.

Product Attributes

METAL OXIDE VARISTOR is a epoxy coated consisting of semi conducting zinc-oxide (ZnO) grains and second phase(Including) Bi2O3,Sb2O3, MnO, CoO, etc) Located at the joints of the grains, it’s called varistor (variable resistor).

Metal Oxide Varistor

Metal Oxide varistor is generally used in parallel in the circuit. When the voltage of varistor across changes sharply, varistor short-circuits and cutoff current fuse, which plays a protective role. Varistors are often used in circuits for power supply overvoltage protection and voltage stabilization.

Construction

Metal oxide varistors are typically constructed from zinc oxide and combined with small additions of other metal oxides such as cobalt, magnese or bismuth. These materials are sintered into ceramic casings during manufacture. Although MOVs are available in different formats, they are most commonly radial leaded discs,also surface mount encapsulation is available.

Applications

● Suppression of lightning and other high levels of transient energy

● Low voltage power supplies in DC circuits

● Low voltage power supply in automotive applications

● Protection from internal transients within capacitor discharges, relay switching and inductive load switching.

Metal oxide varistor 34s features

● Wide operating voltage range 11 … 1600 VRMS

● High surge current ratings up to 8 kA

● No derating up to 85 °C ambient temperature

● PSpice models

Technical parameters

GENERAL Varistors provide reliable and economical protection against high voltage transients and surges which may be produced, for example, by lightning, switching or electrical noise on AC or DC power lines. They have the advantage over transient suppressor diodes in as much as they can absorb much higher transient energies and can suppress positive and negative transients. When a transient occurs, the varistor resistance changes from a very high stand-by value to a very low conducting value. The transient is thus absorbed and clamped to a safe level, protecting sensitive circuit components. Varistors are manufactured from a non-homogeneous material, giving a rectifying action at the contact points of two particles. Many series and parallel connections determine the voltage rating and the current capability of the varistor.

Shipping Terms

● All items will be shipped within 60 business days after received cleared payment.

● International shipping would take longer time, It may delay due to the strict customs and the bad weather (rain, flood, snow).

● If you are willing to use Express Shipping, you need pay the Extra Cost for order.

● Please contact us if you have NOT received item after 35 days, we will check it with post office, and then resend or refund any missing items.

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FAQ of Varistor

Q1. What is your terms of packing?

A: Generally, we pack our goods in neutral boxes and brown cartons. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.

Q2. What is your terms of payment?

A: T/T 50% as deposit, and 50% before delivery. We'll show you the photos of the products and packages before you pay the balance.

Q3. What is your terms of delivery?

A: EXW, FOB, CFR, CIF, DDU.

Q4. How about your delivery time?

A: Generally, it will take 3-7 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

Why choose us

1. Quality assurance: All the products will go through lots of tests carefully before dispatch.

2. Competitive production capacity and fast shipping.

3. Manufactuer's price: Factory direct sale, most competitive price.

4. Small order acceptable.

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