Schneider Electric QOB2100 Industrial Circuit Breaker

Schneider Electric's Square D QOB2100 is a 2-pole, bolt-on miniature circuit breaker rated for 100 A at 120/240 V AC, featuring a 10 kA interrupt rating for robust fault protection. As part of the QOB family within the QO/QOB line, it is designed for standard panelboard installations and uses bolt-on mounting for secure attachment to compatible buswork. The device provides thermal-magnetic protection for 120/240 V circuits, making it suitable for residential, commercial, and light-industrial distribution by interrupting current during overload or short-circuit events. With a 2-pole configuration and bolt-on mounting, the QOB2100 integrates into panels that accept QOB devices and protects feeders and branch circuits up to the 100 A limit. Typical applications include protection for lighting, general power circuits, and motor loads within standard electrical distributions.