QOU unit mount miniature circuit breakers (cable-in/cable-out) are ideal for OEM applications. QOU breakers are one, two or three pole thermal magnetic circuit breakers which provide overcurrent protection and switching on ac and dc systems. These QOU miniature circuit breakers can be DIN rail mounted, surface mounted or flush mounted using mounting feet. This one pole QOU miniature circuit breaker is rated as 50A, 120/240VAC. This unit provides 22 kA breaking capacity. A full line of accessories are available for these circuit breakers. The slotted box lugs will accept one 14 AWG to 2 AWG copper or aluminum wire. QOU circuit breakers are UL Listed and CSA Certified.