Square D by Schneider Electric HOM2150 Homeline 150 Amp Four-Pole Circuit Breaker, , Homeline 150 Amp main circuit breaker to be used as a service disconnect, not a branch breaker. Compatible with select CSED devices: SC816D150C, SU816D150C, SC816D200C, SU816D200C, SC2040M200C, SU2040M200C 120/240 Vac Rated for 10,000 AIR