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AC Power Surge Protective Device


DIN Rail mount
Field replaceable phase modules
Finger-safe design – IP20 rating
Built-in visual status indicator Remote indicator with 3 pin COM/NO/NC contacts
Easy installation or retrofit
Fail-safe / self-protected design
Small footprint

Application



AC Network Connection Diagram (including some uncommon systems)



AC Power Surge Protective Device

AC Power Surge Protective Device
Class I Switch-type

1. WTH-500/G Series (In: 200kA, Imax: 400kA, Iimp: 50kA)
2. WTH-300/G Series (In: 100kA, Imax: 200kA, Iimp: 25kA)

Product List

AC Power Surge Protective Device
Class I

Location of use: main sub-distribution boards
Indication of three levels of surge protection
With three MOVs' protection at the same time, the module can realize Class I surge protection; in case that two of the indicator windows indicates red, it can still meet Class II surge protection requirements.

Product List

AC Power Surge Protective Device
Class I+II

Location of use: main sub-distribution boards, branch sub-distribution boards
Indication of two levels of surge protection
The capability of displaying 50 percent of surge protection capacity: under normal circumstances, with two MOVs' protection at the same time, the module can realize Class I surge protection; in case that one of the indicator windows indicates red, there's still 50% of surge protection capacity to meet Class II surge protection requirements, and the module shall be replaced timely at this point.

Product List

AC Power Surge Protective Device
Class I+II High Energy

1. WTH-65/B+C Series (In: 30kA, Imax: 65kA, Iimp: 7.5kA)
2. WTH-50/B+C Series (In: 25kA, Imax: 50kA, Iimp: 5kA)
3. WTH-65/G+/1P-255

Product List

AC Power Surge Protective Device
Class II

1. WTH-40/C Series (In: 20kA, Imax: 40kA)
2. WTH-65/G/1P-255

Product List

AC Power Surge Protective Device
Class II+III

1. WTH-20/D Series (In: 10kA, Imax: 20kA, Uoc: 20kV)
2. WTH-65/G/1P-255

Product List

AC Power Surge Protective Device
Class III

1. WTH-10 Series (In: 5kA, Imax: 10kA, Uoc: 15kV)
2. WTH-CS/AC Series (In: 5kA, Imax: 10kA, Uoc: 10kV)

Product List


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