Siemens 3VF9627 Molded-Case Circuit Breaker Trip Unit

Siemens 3VF9627 Molded-Case Circuit Breaker Trip Unit is a Type 3VF6 protection module identified by the codes SLT3630TA and 1BM40, with a current rating range of 500–630 A. As a molded-case breaker trip unit, it defines the overcurrent protection characteristics for compatible Siemens MCCBs within low‑voltage distribution systems. The 3VF9627 designation specifies this particular trip unit within the 3VF6 family, enabling precise protection settings for high‑ampacity circuits while aligning with Siemens' ordering and maintenance nomenclature. Intended for use in industrial and commercial electrical installations, this trip unit supports applications where higher amperage protection is required for feeder and distribution circuits, and it is referenced by its 3VF6 trip unit family naming to ensure correct pairing with corresponding Siemens breaker frames. The part number 3VF9627, along with SLT3630TA and 1BM40 variants, provides traceable identity for inventory, service, and replacement planning.