Also known as supplemental protectors, these circuit breakers mount directly to DIN rail downstream from a branch circuit breaker to protect a single piece of equipment.

An electronic trip mechanism makes these circuit breakers fast, precise, and consistent. They continuously monitor current and trip at a precise value compared to the much wider current range in traditional thermal-magnetic breakers.

Match these circuit breakers to Square D breaker boxes or panel boards of the same manufacturer series.

Unlike breakers that trip thermally, these breakers have a hydraulic-magnetic trip mechanism, so they aren’t affected by changes in temperature.

Protect an area of a facility that has high-powered equipment using up to 600V AC or 750V DC and 600A of current.