Further to what tbd has said, locks are available for 12vAC operation also. They can be supplied as 'normally locked' or 'normally unlocked'noobtech+ said:It's main function is to lock the door at all times. When I hit the switch the mechanism must release the lock so the customers can open the door!
tdb said:What you are looking for is a solenoid driven linear actuator. These are typically driven by 12 or 24 VDC, and force magnet through a coil when activated. A metal rod is attached to the magent that can be used to bolt the door shut. I don't know of a specific manufacturer off-hand, but do a search on the web for them.
(+xV) (-xV)
| Open PB Close PB Relay |
|-----|/|----+---| |----+----------------------( )----|
| | | |
| | Relay | |
| +---| |----+ |
| |
| Relay Solinoid |
|-----| |--------------------------------------( )----|
| |
tdb said:sometimes the simplest answer is often the best