Handle Mechanism, Variable Depth Shaft, Breaker, Molded Case, Frame J-K, 12"

Motor protection circuit breakers (MPCBs) provide ULT 489 branch circuit protection and UL 508 and CSAT C22.2 No. 14 motor protection, and meet IEC 60947-2 and 60947-4 requirements. Typical branch motor loads are protected by three-component starters, consisting of breaker, contactor and overload relay, or fuse, contactor and overload relay. The MPCB application-specific protection eliminates the need for motor overload relay found in the traditional three-component starter assembly. The branch motor load protection is simplified to an MPCB and contactor, reducing both space requirements and heat generation in customer panels. Protection is provided by application-specific electronic trip units.