600-lb Electromagnetic Lock, Bond Sensor, Status LED, Door Position Sensor, UL Listed

The E-941Sx series of electromagnetic locks is the ideal way to secure a door against unauthorized entry. When power is applied to the electromagnetic lock, it creates an extremely strong magnetic field. The electromagnet is strongly attracted to the steel armature plate which is mounted on the secured door. Once the electromagnet is deactivated, the secured door will function normally without any residual magnetism.

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  • UL 294 (Access Control)
  • Built-in bond sensor with 3A-amp dry relay output for monitoring door lock status
  • Built-in dual-color status LED shows lock status
  • Built-in door position sensor shows open/closed status (1/2” gap)
  • Dual voltage: 12/24VDC selectable
  • Anodized aluminum housing (US28)
  • No residual magnetism
  • MOV surge protection
  • Detachable faceplate
  • Adjustable mounting bracket
  • Complete mounting hardware for typical installations
  • “L” bracket, “Z” brackets available for easy mounting
Holding force 600-lb
Operating voltage 12 or 24 VDC
Current draw 12VDC: 500mA 24VDC: 270mA
Bond sensor SPDT relay, 3A@12VDC
Door position sensor Reed switch, 0.2A@12VDC
Operating temperature 32°~120°F (0°~49°C)
Dimensions – Magnet 9-13/16″x1-11/16″x1″ (250x43x25 mm)
Dimensions – Armature 7-1/4″x1-1/2″x1/2″ (185x38x12 mm)
Destructive attack Level 1
Line security Level 1
Standby power Level 1
Endurance Level IV

Product Information Sheet (PI)


Doors lock, but can easily be forced open

Answer: Make sure the electromagnet and armature plates are properly aligned. Make sure the contact surfaces of the electromagnet and armature plates are clean and free from rust. Check the power leads with a meter, and make sure 12VDC or 24VDC is present. Make sure the rubber washer is installed and free from damage.

Delay in door releasing

Answer: The electromagnet is fitted with a metal oxide varistor to prevent interference, so do not install a second diode. Ensure that the control device is connected between the power source and the positive terminal of the lock

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