Carling Technologies CA3-B0-21-650-12A-C Hydraulic Circuit Breaker

Carling Technologies CA3-B0-21-650-12A-C Hydraulic Circuit Breaker is a three‑pole, panel‑mount hydraulic‑magnetic protection device in Carling’s C Series. It is rated for 50 A and 277 VAC, designed to protect downstream circuits from overloads or short circuits with a fast trip time of about 0.15 seconds at fault currents. The breaker uses a hydraulic delay with magnetic tripping to balance nuisance protection with rapid response, and it provides an interrupting capacity of 5 kA at the maximum rating. Front-panel operation is via a handle actuator, and the unit is RoHS compliant. Suited for 50/60 Hz systems, this 3‑pole breaker fits standard panel assemblies in commercial and industrial distributions and is appropriate for protecting lighting, motor, and general power circuits in appropriate electrical panels. This CA3-B0-21-650-12A-C variant is listed in the C Series catalog as a 50 A, 3-pole hydraulic-magnetic breaker, reinforcing its intended use in panel protection where reliable instantaneous response and predictable coordination with upstream devices.