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Littelfuse's Industrial Shock Block now Available as Class A Ground-Fault Circuit

Updated: Mar 17, 2021

Electra Sales of North Texas and Oklahoma customers, have you heard that Littelfuse recently made their Industrial Shock Block available as a Class A Ground-Fault Circuit (GFCI) with a 6 mA trip level?

This allows commercial kitchens, construction sites, and other non-dwelling units with wet areas to meet NEC 210.8(B) for their 3-phase loads up to 100 A.

Class A Shock Block features an optional ground check, has inverse time curve GFCI protection to reduce the chance of false tripping, and an undervoltage brownout and chatter detection to prolong internal contactor lifetime.

Contact your Electra Sales of North Texas or Oklahoma representative or visit Littelfuse online at


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