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Does suffix MR on an SE breaker imply that it is electrically operated and includes a shunt trip and shunt close coil?

MR means they have a 120Vac spring charging motor installed.  If you need them electrically operated, then field install a shunt trip and shunt close from the offering in the latest Supplemental Digest.  As these parts are obsolete, check for availability before promising them to a customer.

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