Electromagnetic Locking | Maglocks A door can be kept closed using the holding force of a low-voltage magnet. ASSA ABLOY's line of electro magnets is suited for high-traffic applications as well as for easy installation on glass doors. Lockwood Padde Series Z4 and Z8 Single Non Monitored Electromagnetic LocksSite selectable dual voltage, 12 or 24 Vdc. Lockwood Padde Series Z4 and Z8 Single Monitored Electromagnetic LocksSite selectable dual voltage, 12 or 24 Vdc. Lockwood Padde Series Z4 and Z8 Double Non Monitored Electromagnetic LocksSite selectable dual voltage, 12 or 24 Vdc. Lockwood Padde Series Z4 and Z8 Double Monitored Electromagnetic LocksSite selectable dual voltage, 12 or 24 Vdc. Lockwood Padde Series Z4 Recessed Electromagnetic LockSite selectable dual voltage, 12 or 24 Vdc. Lockwood Padde Series Weather Resistant Electromagnetic LockOperates with holding a force up to 580kg. Lockwood Padde Series Wall and Floor Mounted Hold-Open MagnetsFail safe operation. Unlocks when power is removed. Lockwood Power Transfer LeadEnsure unbroken transfer of wires between door and frame.