QO and QOB one, two and three pole thermal magnetic circuit breakers provide overcurrent protection and switching on ac and dc systems. These circuit breakers have an over center, trip-free toggle mechanism with quick-make, quick-break action and positive handle indication. They also have VisiTrip trip indication, which provides a visual indication that the circuit breaker has tripped and interrupted the circuit. This two pole QO bolt on main circuit breaker is rated as 150A, 120/240 VAC. This circuit breaker provides 22 kA breaking capacity. This circuit breaker is for QO or HOM load centers. A full line of accessories are available. The lug connectors will accept one 4 AWG to 300 kcmil copper or aluminum wire. This circuit breaker has a height of 5.60 inches, a width of 3.60 inches and a depth of 5.07 inches. This QO main circuit breakers is UL Listed and are CSA certified.
CA Prop65 Warning