Square D FHL3610016DC1684 Three Pole Circuit Breaker

Square D by Schneider Electric FHL3610016DC is a three-pole molded-case circuit breaker rated for 100 A and up to 600 V, part of the FHL DC family designed for DC power distribution. This 3P breaker is equipped with a 24 V undervoltage release (UVR) and an auxiliary switch, enabling remote signaling and interlock options in control schemes. With molded-case construction and a thermal-magnetic trip mechanism, it provides protection for DC circuits in UPS-backed or ungrounded DC systems. Applications include DC power distribution in data centers, telecom facilities, and other environments where UPS or other DC sources supply critical equipment, up to a maximum voltage rating of 600 V and a current rating of 100 A. The device is built to support compact installations in panels and enclosures, delivering reliable protection for three-phase DC loads while offering the convenience of an auxiliary contact for status indications and a UVR coil for under-voltage protection.