The Square D QOB2100 is a 100-amp, two-pole bolt-on miniature circuit breaker designed for 120/240 VAC panels. It offers 10 kA interrupting capacity, making it suitable for protecting two hot conductors in residential or light commercial distribution systems. This bolt-on device mounts by bolting into compatible Square D QO bolt-on enclosures and is part of the QOB family, distinct from plug-on models. Used to safeguard branch circuits, the QOB2100 is appropriate wherever two-pole, 100 A protection is required in a 120/240 V distribution network within Square D load centers.
