Challenger CBBH3070H Bolt On 3 Pole Circuit Breaker

Challenger CBBH3070H Bolt-On 3-Pole Circuit Breaker is a 70-amp molded-case circuit breaker designed for three‑phase, 240‑volt service. This bolt-on device is intended for mounting in Challenger panelboards or compatible enclosures that accept bolt‑on MCCBs, providing protection across all three phases. The CBBH3070H belongs to Challenger’s bolt-on circuit-breaker family and delivers standard overcurrent protection for 3‑phase feeders and motor circuits, helping guard conductors and connected equipment from overloads. With a 240 V rating and three poles, it interrupts all phases simultaneously to maintain balanced loads and safeguard upstream wiring. When selecting this breaker, verify panel compatibility with Challenger bolt‑on breakers and ensure the enclosure is rated for molded‑case devices. The 70 A rating informs conductor sizing, breaker coordination, and upstream protection decisions in distribution installations that rely on Challenger components.