Siemens / ITE CK3B125 – 125A 3 Pole Molded Case Circuit Breaker New Release

Part of the legacy Cordon series, the Siemens CK3B125 is a 3-pole, 125A molded case circuit breaker for commercial power distribution. It delivers reliable thermal-magnetic protection for critical loads. This bolt-on unit installs into older Siemens and ITE panelboards. It serves as an exact physical match for aging infrastructure and is replaced by CFD63B125 frames when upgrading. Rated 100kAIC at 480VAC, its integrally fused design restricts let-through energy to safeguard equipment.