Challenger CH3020 Bolt-On 3-Phase Circuit Breaker

Challenger CH3020 is a bolt-on, three-pole molded‑case circuit breaker rated for 20 amps, designed for Challenger CH panelboards and other compatible CH‑series distribution equipment. It is specified for 277/480 VAC three‑phase service, providing protection for feeders and downstream circuits in commercial and industrial electrical systems. The CH3020 mounts directly to the bus and is engineered for straightforward field replacement in existing Challenger installations, helping maintain safety and continuity of service without a full panel change. As part of the CH bolt‑on family, this unit is constructed to handle routine switching and fault protection in 3‑phase circuits, with a compact form factor that fits standard CH panelboard layouts. Typical applications include protecting motor feeders, lighting and general distribution circuits in commercial buildings, data centers, and industrial facilities where 480V‑class distribution is used. The model designation CH3020 clearly identifies a 3‑pole, 20‑amp rating from Challenger's CH series, matching other CH 3P breakers in the same lineup for consistent compatibility within a CH system.