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Motor Control Center (MCC) Buckets, are individual motor control modules intended to be installed in a motor control center, they typically contain a circuit breaker, a motor starter/contactor, and may contain a transformer. Some more specialized mcc buckets may contain additional components for more advanced motor control such as a variable frequency drive or soft starter. Buckets are typically between a foot or two square but vary in size depending on the manufacturer. Depending on what is installed in an MCC bucket they may have an indicator light on it a reset switch and or on off switch.