Ground fault current protective device

Details Ground fault current protective device Ground fault current protective device

H - Electricity

01

H

306/284, 306/74

H01H 83/14 (2006.01) H01H 71/08 (2006.01) H01H 71/00 (2006.01)

Patent

CA 1297932

ABSTRACT OF THE DISCLOSURE: A ground fault trip unit of the three-pole type, comprises a fourth conductor passing through the differential transformer. The fourth conductor is connected to terminals located on a different face from that of the terminals of the other three conductors. The same ground fault trip unit can be associated with a three-pole breaking device, in which case the fourth conductor is not use, and with a four-pole device whose fourth pole is connected to the fourth conductor of the ground fault trip unit.

585093

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