LiftMaster NEMA 4 Key Switch, Best Cylinder | LIF-02-409B

Housed in a tamper-proof, die-cast metal enclosure, this key switch is built to withstand harsh outdoor environments, meeting NEMA 4 and NEMA 12 ratings for protection against windblown dust, rain, sleet, snow, and splashing water. It features a secure BEST cylinder with a construction core included.

WARNING: When used on most industrial operators, this control will not stop the door. Use another control that has a STOP button in conjunction with this control.

Genuine LiftMaster® replacement part.