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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. A comprehensive selection of 10kA rated circuit breakers is available
QO® (Plug-In) and QOB (Bolt-On) Circuit Breakers
120/240VAC Visi-Trip® indicator Standard and VH breakers are UL Listed as HACR type.
Qwik-Open® breakers are for use only with QO load centers and NQ and NQOD panelboards.
QOB breakers are for use only with NQ or NQOD panelboards.
Rated for aluminum and copper conductors.
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