Overcurrent

Working with trip characteristic curves - ABB

The direct-acting overcurrent trip devices may include ground trip elements. 41 - RATED MAXIMUM VOLTAGE: the rated maximum voltage of a circuit breaker is the highest rms voltage, three-phase or single-phase, at which it is designed to perform. The circuit breaker shall be rated at one or more of the following maximum voltages: 635V, 508V, or 254V.

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