Square D QO™ Standard 3-Pole miniature circuit breaker with Visi-Trip™ indicator, is rated at 100 Amps and 240 Volt AC. Interrupt current rating of this circuit breaker is 10 Kilo-Amps. It measures 2.25 Inch x 2.91 Inch x 3.5 Inch. This 3-Phase miniature circuit breaker with box lugs connection, accommodates aluminum/copper wire of size 4 - 2/0 AWG. It features common and thermal-magnetic trip function to ensure reliability. This HACR rated circuit breaker supports plug-in mounting.