What tool is required to remove or refit the MGP/PP4 circuit breakers used in the Powerpact 4 range of panelboards?
The tool required to undo or retighten the busbar connections on the MGP/PP4 range of circuit breakers is a 17mm bi-hexagon socket or spanner sometimes referred to as a pipe spanner.
If a used circuit breaker is refitted, the busbar connections need to tightened with a torque wrench to the following values:
Ratings up to 250A = 20Nm
Ratings 400 - 630A = 28Nm
See illustrations below for examples of the socket and pipe spanner.
Bi-hexagon socket
Spanner or Pipe spanner
For more details you can refer to Powerpact 4 instruction leaflet
Released for: Schneider Electric UK
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