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Specifications
Metal Oxide Varistor For Lightning Arrester1.Diameter:40-42mm
2.Height:21-31mm
3.Volatage:4.6-6.8KV
4.Usage;usde arrester
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
Specification |
| MOV40×21 | MOV40×25 | MOV40×31 | MOV42×21 | MOV42×25 | |
Diameter | mm | 40±1 | 40±1 | 40±1 | 42±1 | 42±1 | |
Thickness | mm | 21±1 | 25±1 | 31±1 | 21±1 | 25±1 | |
D.C. reference voltage (U1mA) U1mA | kV | 4.6±0.3 | 5.6±0.3 | 6.8±0.3 | 4.6±0.3 | 5.5±0.3 | |
Leakage current under 75%U1mA | uA | <15 | <15 | <15 | <15 | <15 | |
Max. ratio of residual voltage (8/20us) |
| 1.83@10kA | 1.83@10kA | 1.83@10kA | 1.82@10kA | 1.82 @10kA | |
Current impulse withstand capability | 4/10us | kA | 100 | 100 | 65 | 100 | 100 |
2ms | A | 250 | 250 | 250 | 300 | 300 | |
Recommended rated voltage | kV | 3.0 | 3.8 | 4.5 | 3.0 | 3.8 | |
Recommended continuous operating voltage | kV | 2.4 | 3.0 | 3.6 | 2.4 | 3.0 | |
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