Metal oxide gapless arresters are designed to protect transformers, switchgear and other equipment
from switching and lightning surges. Our arresters meet or exceed all requirements of the most
current IEC standard for ensuring products with a superior level of quality.
Material: polymeric housed and metal oxide varistor
Color: white or light gray
Standard: IEC
Drawing


Basic Data
Type | Rated Voltage | Max. continuous operation voltage | Max. residual voltage | 2000us Square wave current impulse withstand | 4/10us High current impulse |
kV (rms) | kV (rms) | Steep current impulse, kV(crest) | Switching current impulse, kV(crest) | Lightning current impulse, kV(crest) | A(crest) | kA(crest) |
YH5W-3 | 3 | 2.55 | 9.5 | 7.7 | 9 | 100 | 65 |
YH5W-6 | 6 | 5.1 | 19 | 15.4 | 18 | 100 | 65 |
YH5W-9 | 9 | 7.65 | 28.5 | 23.1 | 27 | 100 | 65 |
YH5W-10 | 10 | 8.3 | 36 | 27 | 30 | 100 | 65 |
YH5W-11 | 11 | 9.5 | 38.5 | 30 | 33 | 100 | 65 |
YH5W-12 | 12 | 10.2 | 38 | 30.8 | 36 | 100 | 65 |
YH5W-15 | 15 | 12.7 | 47.5 | 38.5 | 45 | 100 | 65 |
YH5W-18 | 18 | 15.3 | 57 | 46.2 | 54 | 100 | 65 |
YH5W-21 | 21 | 17 | 66.5 | 53.9 | 63 | 100 | 65 |
YH5W-24 | 24 | 19.5 | 76 | 61.6 | 72 | 100 | 65 |
YH5W-27 | 27 | 21.9 | 85.5 | 69.3 | 81 | 100 | 65 |
YH5W-30 | 30 | 24.4 | 95 | 76.5 | 90 | 100 | 65 |
YH5W-33 | 33 | 26.8 | 104 | 84.7 | 99 | 100 | 65 |
YH5W-36 | 36 | 29 | 114 | 92.4 | 108 | 100 | 65 |
YH5W-42 | 42 | 34.1 | 132.3 | 100.1 | 126 | 100 | 65 |
Festures:1.Good protection for the power system of all kinds of electrical equipment from over voltage damage2.Stable U-I characteristics, even after multiple strikes3.Resistant to UV, ozone, chemicals, mechanical abuse4.Easy installation at almost all angles5.No continuous current and low current impulse residual voltage.6.Excellent short circuit performance7.Reliable sealing and high reliability, power frequency withstand abilityServiceChoose our products! You'll get1) Good quality guarantee (2 years)2) Factory direct prices3) On time delivery4) Free sample5) Professional technology support Strict quality controls have been taken to ensure that you'll get reliable products. a. Material checks before production. b. Random inspection during production. c. Inspection before the shipment. Our products fully comply with well recognized standards such as IEC, BS, ANSI. 
FAQ: 1. Q: Do you have a catalog? Can you send me the catalog to have a check of all your products? A: Yes, We have product catalog. Please contact us, we'll send our catalog by E-mail. 2 Q: I can't find the product on your catalog, can you make this product for me? A: Our catalog shows most of our products but not all. If you couldn't find it, let us know the specification of your requirements, it usually takes 20-30 days for us to design and make new moulds which match your requirements. 3 Q: What's your payment term? A: The price FOB Ningbo under payment term is 50% T/T in advance and the balance before shipment.