Less Plug - Housing supplied without key barrel or keys (as pictured). Keyed Alike - Multiple key switches that work from the same key (comes with 2 x keys per key switch). Keyed to Differ - A single or multiple key switches Keyed to Differ or randomly keyed locks working from a different key (comes with 2 x keys per key switch). Description Designed for control of Automatic doors on commercial building (Can be used for other applications). The "A" series uses a unique removable cylinder enabling convenient master keying and key re-combinations. The lock cylinder also serves to lock in place a metal cover protecting the mounting screws from removal. This switch is suitable for BWN (SK4) series doors only. Mains power must only be wired by a licensed electrician. Lock it Well key switch and cylinder only. LW4 profile keyed to differ or keyed alike 4 position switch - Open, Auto, Exit and Lock. Suits BWN (SK4) series doors. Compatible to most restricted keying systems. Designed for Automatic door mullion mounting. Key indication with unique removable cylinder with 1.5 mm allan screw. Lock cylinder also serves to lock in place a metal cover protecting the mounting screws. Key removal in 4 positions with key indication. Supplied with 2 keys. Technical Specifications Brand: LOCK IT WELLKey Profile: LW4Current Rating: 10 A at 240 Vac, 6 A at 24 VdcNumber of Positions: 4 Download A Series Brochure (Limited Circuits) Download Auto Series Electrical Sheet Download Installation Sheet