by , on May 18, 2012

Littelfuse’s new EL731 AC/DC Sensitive Earth-Leakage Relay can detect ground currents from 1500 – 0 Hz.   The new relay is ideal for protecting VFDs that may operate at low speeds, during which AC current approaches DC, and can be installed in place of an existing ground fault relay without replacing the current transformer.

Click here to read the Press Release dated 4/17/12.

Hugh Hoagland
About author:
Hugh Hoagland is the foremost tester of clothing and PPE exposed to electrical arcs and is an arc flash expert. Read more about Hugh.

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