Siemens E43B050 – 50A 3 Pole Molded Case Circuit Breaker Time-Limited

Designed to protect commercial power systems, the Siemens E43B050 functions as a 50A, 3-pole molded case circuit breaker. It features a non-interchangeable thermal-magnetic trip unit that provides precise long-time and instantaneous protection. The bolt-on connection ensures a secure fit in Siemens Sentron panelboards, SB switchboards, and older ITE F-Series panels. Delivering an interrupt capacity of 18 kAIC at 480VAC, it is HACR rated and reverse-feed capable for flexible installation.