Shock Block - GFCI / SPGFCI / EGFPD

The Industrial Shock Block® SB5000 series is a personnel protection device designed to meet the requirements for specialpurpose GFCIs defined by UL 943C. This standard outlines GFCI classes specifically designed for use in industrial facilities.

Class C GFCIs are intended to be used on three-phase systems where the line-to-line voltage is 480 V or less with a trip level of 20 mA, while Class D GFCIs are intended to be used on 600 V systems. The SB5000 includes DFT harmonic filtering, an automatic self-test feature, and is compliant to the UL 1998 Software in Programmable Components standard.

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