53 2-Pole Molded case circuit breaker is rated at 240-Volt AC and 150-Amps. Interrupt rating of this circuit breaker is 10-Kilo-Amps. It measures 2-3/4-Inch x 2-5/8-Inch x 6-9/16-Inch. This 1-Phase breaker with line/load lug terminal connection, accepts copper/aluminum wires of size 4-AWG - 300-KCMIL. It features non-interchangeable, long-time and instantaneous thermal-magnetic trip type to ensure reliability. This Q-Line frame circuit breaker supports feed-thru mounting for making installation easier. It is suitable for reverse feed applications. Circuit breaker is UL listed and GSA compliant.