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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 QO and QOB miniature circuit breaker subfeed lug kit is rated for 225 A 2 pole and 4 spaces. Lugs will accept 4 AWG to 300 kcmil aluminum or copper wire.