Square D by Schneider Electric QOM2150VH QO 150-Amp QOM2 Frame Size Main Circuit Breaker for QO and Homeline Load Centers QOM 150 Amp 22k AIR QOM2 Frame Size main circuit breaker for QO and Homeline Load Centers QOM2 frame size main circuit breaker that is field-installable Protect a breaker panel in a QO or Homeline 150 - 225 Amp main lug load center or CSED with this QOM2 frame size main breaker 120/240 VAC Rated for 22,000 AIR