Siemens / ITE JJ3B250 – 250A 3 Pole Molded Case Circuit Breaker Limited Time

Designed to maintain existing infrastructure, the Siemens JJ3B250 is a 250A, 3-pole molded case circuit breaker. It delivers robust protection for commercial applications operating up to 600VAC. This legacy breaker installs into Siemens P4 and P5 panelboards, plus SB switchboards. It provides a seamless hardware match for older enclosures, bypassing the need for modern adapters. Delivering a 25kAIC rating at 480V, the unit utilizes standard lug terminals accepting up to 500 kcmil wire.