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What is the part # for a 120V Shunt Trip for an SE Circuit Breaker?

I need the part number for a 120VAC shunt trip for an SE breaker

During Installation.

SE Breaker

The Part Number Is S3ST120AC2. It may be replaced on Series 2 and newer, or added on Series 3 or newer and Series 2 SE breakers with ground-fault.

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