Ads by Google
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