The MMTC HBSX open-close key switch from North Shore Commercial Door is a NEMA 4-rated key switch with key in a single gang box for commercial door control. This MMTC key switch has a sturdy metal flip cover and metal lock-surround for durability.
The tamper-resistant mortise lock threads into the housing. Turn the key to the marked setting to open or close a door. Return the key to its center position on this surface-mount key switch to automatically return the door to its original position.
Door control key switch in single gang box
NEMA 4-rated housing
Turn key to open, close door
Return key to center position to automatically return door to original position