The LiftMaster 02-406-1T Key Switch is an OEM replacement control accessory designed to provide secure, key-operated activation for compatible LiftMaster commercial door and gate operators. By requiring a physical key to initiate control, it helps limit access to authorized users for applications such as warehouses, loading docks, parking facilities, and gated entries. Depending on how it’s wired to the operator’s control board, the key switch can be used to enable basic functions like open/close or to arm a control circuit so only keyed users can operate the door or gate.
This key-operated station connects to the operator via low-voltage, dry-contact wiring and is intended for use with select LiftMaster commercial operators; always verify compatibility with your model’s manual or parts diagram. Installation should be performed by a qualified technician following the operator’s wiring instructions and local codes. For outdoor or harsh environments, use an appropriate protective enclosure as required by site conditions. The 02-406-1T is not a substitute for entrapment protection; ensure all safety devices are installed, functional, and tested in accordance with applicable standards.