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What is the difference between a MGN and MG prefix on a C60 Multi 9 Merlin Gerin breaker?

FA117560

7/02/2018

Product Line:
Circuit Breakers

Environment:
Electrical Distribution Equipment

Resolutions:
MGN is UL489 listed for 480/277Vac where MG is UL1077 recognized for 480V/277V.