Design Engineering

Overload protection


General DPN

For single and three phase systems, the Valvetrab provides main and branch circuit overvoltage protection from electrical transients caused by lightning, utility switching actions, de-energized inductive loads and heavy switching operations.

It provides up to 40 kA 8/20 µs maximum surge protection for the service entrance, MCCs, variable frequency drives, softstarts and other electrical equipment. Features include: a 40 mm MOV with thermal disconnect for failure indication; DIN-rail mount foot; and, pluggable protection module.


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