The HONEYWELL part BZ-2R5551-A2 is a MICRO SWITCH Premium Large Basic Switch featuring a single pole double throw (SPDT) configuration. It is designed to handle up to 15 A at 125/250 Vac and 16 A at 250 Vac with a 3.96 mm [0.156 in] diameter pin plunger and elastomer plunger seal. This switch is equipped with a dust and splash resistant cover to case seal, and binding head combination screw termination with cup washers. The mounting holes on this switch can accept pins or screws, and it is UL, CE, CSA, and ENEC certified.