Challenger CBB3030H Three-Phase Bolt-On Circuit Breaker

Challenger CBB3030H is a three-phase bolt-on circuit breaker that provides overcurrent protection for 3P electrical systems. Rated at 30 A and suitable for 120/240 V AC service, this three-pole (3P/3PH) unit belongs to Challenger's CBB family and uses Quicklag thermal-magnetic technology to trip on overloads or short circuits, helping safeguard wiring and connected equipment in industrial environments. Its bolt-on mounting is designed for secure installation in compatible Challenger/Crouse-Hinds-style panels and enclosures, offering a robust, non-interchangeable protection option for multi‑phase distributions. The Type CBB designation identifies its family and confirms compatibility with legacy Challenger panel systems. Typical applications include feeders and branch circuits in manufacturing floors, control panels, and machinery where reliable 30 A protection at 120/240 V is required. For installation, ensure the breaker matches the panel’s bolt-on footprint and trip characteristics, and confirm any cross-reference compatibility if replacing older Challenger equipment, noting that Challenger’s product line has since been integrated into Eaton’s Cutler-Hammer portfolio.