9065CT9701R03/21

Trip Current Rating Calculation

The trip current rating is a nominal value that approximates the minimum current to trip an overload relay in an ambient temperature, outside of the enclosure, of 40 °C (104 °F). In all selection tables except Class 8198, the trip current rating is 1.25 times the minimum full-load current shown for the thermal unit selected. For Class 8198, the trip current rating is 1.15 times the minimum full-load current. This applies to bimetallic overload relays with the trip adjustment set at 100 percent.

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