Square D QOB340 Miniature Circuit Breaker, QO, 40A, 3 pole, 120/240VAC, 22kA, bolt on

QOB340 is a practical choice for mounting boxes, straps, fixtures, supports, and electrical hardware.

Application

power distribution and electrical service equipment

Common uses

mounting boxes, straps, fixtures, supports, and electrical hardware

Pairs with

straps, brackets, boxes, supports, anchors, and mounting hardware