Mini circuit breaker, QO, 40A, 2 pole, 120/240VAC, 10kA, bolt on

<br><strong>What are QO Breakers and where are they used?</strong><br> <br>QO (plug-on) and QOB (bolt-on) <strong>one-, two- and three-pole</strong> thermal-magnetic circuit breakers provide overcurrent protection and switching on <strong>ac and dc systems.</strong> <strong>Plug-on QO</strong> circuit breakers are for use in QO load centers, NQ and NQOD panelboards, OEM mounting bases, and Speed-D switchboard distribution panels. <strong>Plug-on QO</strong> circuit breakers are for use in QO load centers, NQ and NQOD panelboards, OEM mounting bases, and Speed-D switchboard distribution panels. <br><br><strong>What are the general characteristics of QO Breakers?</strong><br> <br>QO and QOB circuit breakers have <strong>Visi-Trip trip indication</strong>, which provides a visual indication that the circuit breaker has <strong>tripped and interrupted </strong> the circuit. They feature an <strong>over center, trip-free toggle mechanism with quick-make, quick break action</strong> and positive handle indication. The<strong> tripping mechanisms</strong> in two- and three-pole circuit breakers operate such that an overcurrent on any pole of the circuit breaker will cause all poles of the circuit breaker to <strong>open simultaneously.</strong> <br><br><strong> What are the specific characteristics and benefits of this breaker?</strong> <br><br>This is a <strong>2‑pole</strong> <strong>40A</strong> QO bolt‑on breaker rated at <strong>120/240VAC</strong> with a <strong>10kA</strong> interrupting rating. QO circuit breakers are UL Listed under UL File E84967 and are CSA Certified under CSA Master Contract 153555.