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How can a Masterpact NW breaker with a 3.0 trip unit be modified to have ground-fault indication

Issue:
Upgrade NW breaker with 3.0 trip unit to have ground fault alarm indication

Product Line:
Circuit Breakers

Resolution:
For Fixed NW breaker:
Replace the trip unit with a 5.0P type, catalog # S163A.
  • S33101 - 12-pin connector for the trip unit
  • (2) S47075 and (1) S47074 Secondary connectors for trip unit if required.
Add the M2C Contact Module
  • S47403 - M2C kit (Secondary Disconnect comes with kit)
Add a neutral CT if they have a 4-wire system.
Also add a 24 Vdc power supply for the trip unit.

For Drawout NW breaker:
Replace the trip unit with a 5.0P type, catalog # S163A.
  • S33101 - 12-pin connector for the trip unit
  • (2) S47850 and (1) S47849 Secondary connectors for trip unit if required.
Add the M2C Contact Module
  • S48382 - M2C kit (Secondary Disconnect comes with kit)
Add a neutral CT if they have a 4-wire system.
Also add a 24 Vdc power supply for the trip unit.

Also add External Voltage Sensing if they want power measurements
 
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