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What is the operating time of ground fault protection devices defined in the UL 1053 standard?

Published date: 18 March 2019

The UL 1053 standard defines in Table 22.1 the operating time of the ground fault protection devices:
Ground-fault current (A) Time (s)
85% of pickup current Shall not trip
115% of pickup current Ultimately
150% of pickup current 2
250% of pickup current 1

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