Phoenix Contact introduces the HMC series of circuit breakers, the company’s first 120 V AC hydraulic-magnetic circuit breakers for use in Class I, Division 2 applications. The UL-approved products utilize a fully sealed hydraulic-magnetic design that allows for accurate power switching and reliable overcurrent protection. Each breaker is rated for 50 V DC, and breakers up to 15 A are also dual-rated at 120 V AC. They have a short circuit current rating (SCCR) of 1 kA and a temperature operating range from -40°C to +65°C. Pluggable line and load terminations along with the unique T-bus option allow breakers to snap into a common power bus. These features ease installation and reduce wiring.