Square D QO QO240C Circuit Breaker, Mini, 40 A, 2 -Pole, 120/240 VAC, 48 VDC, Plug Mounting, Black

The industry leader in circuit protection is easily recognized by the industry's only trip indicator. The red Visi-Trip™ Indicator makes it easy to spot a tripped circuit breaker. Compact 3/4 in wide format for one-pole circuit breakers helps minimize panel space and footprint. The Square D™ exclusive Qwik-Open™ protection is standard on all 15 A and 20 A circuit breakers trip reaction within 1/60th of a second. No other circuit breaker trips faster.