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What is the lug-mounting torque requirement for installing mechanical lugs to a Power Pact L frame breaker?

Published date: 11 June 2020

Issue:
Lug-mounting torque requirement for Power Pact  L frame breaker

Product Line:
Circuit Breakers

Environment:
Powerpact L frame breaker.

Resolution:
The mounting screw torque for all mechanical lug kits to the Powerpact L frame breaker is 327 lb-in (37 N-m).  This includes lug kits: 
AL400L61K3
AL400L61K4
AL600LS52K3
AL600LS52K4
AL600LF52K3
CU400L61K3
CU400L61K4
CU600LS52K3
CU600LS52K4
CU600LF52K3

Note that this is different from the wire binding screw torque.
Wire binding screw torque is 442 lb-in (50 N•m) for all lug kits except for CU400L61K3 and CU400L61K4, which take 275 lb-in (31 N•m).

Note also that the torque requirements are the same if these lugs are applied to Compact NSJ and Powerpact D frame breakers.

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