VariSTAR surge arresters are available in normal-duty, heavy-duty, and riser pole classifications and provide superior overvoltage protection for any electric distribution system.

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Eaton's Cooper Power series molded polymer-housed heavy-duty distribution class surge arresters for systems up to 36kV meet or exceed the requirements of IEEE C62.11.
Product Name :
Heavy-Duty Distribution ArresterCatalog Number :
MHDRated Voltage :
3-36KVContinuous operating voltages: Uc (kV) :
2.55-29Lead Time :
4 WeeksVariSTAR surge arresters are available in normal-duty, heavy-duty, and riser pole classifications and provide superior overvoltage protection for any electric distribution system.
This Elbow Arrester is available in voltage ranges from 15 kV to 35 kV.
Eaton's Cooper Power series molded polymer-housed heavy-duty distribution class surge arresters for systems up to 36kV meet or exceed the requirements of IEEE C62.11.
Rating | With isolator,insulated hanger (Figure 3) | With isolator,insulated hanger and NEMAcross-arm bracket (Figure 4) | With insulated hanger without isolator (Figure 6) | With isolator,insulated hanger,and transformer mounting bracket(Figure 5) |
3 | MHD03H10A1A1A1A | MHD03H10A1A1B1A | MHD03H10A0A1A1A | MHD03H10A1C1C1C |
6 | MHD06H10A1A1A1A | MHD06H10A1A1B1A | MHD06H10A0A1A1A | MHD06H10A1C1C1C |
9 | MHD09H20A1A1A1A | MHD09H20A1A1B1A | MHD09H20A0A1A1A | MHD09H20A1C1C1C |
10 | MHD10H20A1A1A1A | MHD10H20A1A1B1A | MHD10H20A0A1A1A | MHD10H20A1C1C1C |
12 | MHD12H20A1A1A1A | MHD12H20A1A1B1A | MHD12H20A0A1A1A | MHD12H20A1C1C1C |
15 | MHD15H30A1A1A1A | MHD15H30A1A1B1A | MHD15H30A0A1A1A | MHD15H30A1C1C1C |
18 | MHD18H30A1A1A1A | MHD18H30A1A1B1A | MHD18H30A0A1A1A | MHD18H30A1C1C1C |
21 | MHD21H50A1A1A1A | MHD21H50A1A1B1A | MHD21H50A0A1A1A | MHD21H50A1C1C1C |
24 | MHD24H50A1A1A1A | MHD24H50A1A1B1A | MHD24H50A0A1A1A | MHD24H50A1C1C1C |
27 | MHD27H60A1A1A1A | MHD27H60A1A1B1A | MHD27H60A0A1A1A | MHD27H60A1C1C1A |
30 | MHD30H60A1A1A1A | MHD30H60A1A1B1A | MHD30H60A0A1A1A | MHD30H60A1C1C1A |
33 | MHD33H70A1A1A1A | MHD33H70A1A1B1A | MHD33H70A0A1A1A | MHD33H70A1C1C1A |
36 | MHD36H70A1A1A1A | MHD36H70A1A1B1A | MHD36H70A0A1A1A | MHD36H70A1C1C1A |
MHD-IEEE heavy-duty distribution class surge arrester catalog
300 LBS WOG Electrical Valve: C377 copper alloy body, Teflon disc & Viton seals. Industry-compliant, closed-position delivery, 12/box with “Made in China” labeling. Ideal for water, oil, and gas applications.
The pressure relief valve is mainly used to prevent the gas pressure in the container from exceeding a predetermined value. When the pressure is higher than the release pressure(Pressure release opening value: P=0.03 ± 0.01MPa Or P=0.06 ± 0.01MPa) the valve will automatically open to allow the gas to leak。 The material is copper
The vacuum pressure gauge is a pressure measuring instrument specially designed for box-type power transformers. The measuring range is -10~10PSIG.
The UHZK-03 Electric Contact Oil Level Gauge is designed for indicating the oil level in the tank of oil-immersed transformer,it is composed of float, connecting lever, holder, magnet steel and indicator, terminal box, relay etc. With the holder completely separating the indicator from the float, it is possible for the gauge to be sealed.
This type oil temperature gauge is a specialized instrument suitable for temperature measurement and control of various small transformers. This gauge has the characteristics of sensitive response, clear indication, convenient installation, and good reliability.
The transformer oil temperature gauge is suitable for the instrument installed on the side wall of the transformer for temperature measurement and indication. The temperature measurement range is 0~120°C.
This Transformer LV Bushing is epoxy molded, it is removable secondary bushing, and is used for connecting cables outside of pad-mounted transformer tanks to the secondary coil winding leads inside the tanks. It is designed for use in transformer oil or an approved equivalent.
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