LiftMaster Interlock Switch for Sectional Door Nema 4 (Same as 50-13529)
LiftMaster Interlock Switch SPDT
Interlock Switch for Sectional Doors
Interlock Switch for Rolling Steel Doors / Grills
Interlock Switch for Sectional Doors Rail Mount 1 NC Contact
LiftMaster Interlock Switch 125/250VAC 3A N4