Issue:
This is an LSI trip units, not ground fault, what is the T1 T2 jumper used for?
Product Line:
Circuit Breakers
Environment:
Powerpact H,J,L trip units
Resolution:
The factory does install the T1 T2 jumper on 5.2A/E and 5.3A/E trip units. However, if the trip unit is configured for no neutral CT, then the jumper is not required. However, it is recommended to install the T1 T2 jumper when a NCT wiring is not installed on these terminals. This is best practice.
The trip unit can still be configured to provide neutral protection. If configured as such and there is no NCT wiring on T1 T2, and no jumper, the breaker will trip.
This is an LSI trip units, not ground fault, what is the T1 T2 jumper used for?
Product Line:
Circuit Breakers
Environment:
Powerpact H,J,L trip units
Resolution:
The factory does install the T1 T2 jumper on 5.2A/E and 5.3A/E trip units. However, if the trip unit is configured for no neutral CT, then the jumper is not required. However, it is recommended to install the T1 T2 jumper when a NCT wiring is not installed on these terminals. This is best practice.
The trip unit can still be configured to provide neutral protection. If configured as such and there is no NCT wiring on T1 T2, and no jumper, the breaker will trip.
Опубликовано для: Schneider Electric Казахстан
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