600-lb Electromagnetic Lock, Double-door, Bond Sensor, Status LED, UL Listed

The E-941Dx 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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  • 600-lb (272kg) Holding force per door
  • No residual magnetism
  • MOV Surge protection
  • Built-in status LED shows locked/unlocked status
  • Built-in bond sensors with 3A@12VDC dry relay output for monitoring door status
  • Anodized aluminum housing (US 28)
  • Adjustable mounting bracket
  • Complete mounting hardware for typical installations
  • Additional brackets available for easy mounting or atypical situations
  • Detachable faceplate for easy access to wiring
  • 12/24VDC Selectable
  • Multiple UL listings
        • UL294 Access Control System Units – USA
        • UL10C Positive Pressure Fire Test – USA
        • UL10B Fire Test of Door Assemblies – USA
        • ULC-S104 Fire Test of Door Assemblies – Canada
  • Lifetime limited warranty*

*Warranty applies in the USA and Canada only. Contact SECO­LARM for details.

Holding force 600-lb (272kg) per door
Operating voltage 12 /24 VDC (selectable)
Current draw 500mA@12VDC per door (1A total) 270mA@24VDC per door (540mA total)
Bond sensor relay Yes
Status LED Yes
Operating temperature 32º~120º F (0º~49º C)
Electromagnet dimensions 19-11/16″ x 1-5/8″ x 1-1/16″ (500x40x26 mm)
Armature dimensions 7-1/4″x1-1/2″x1/2″(185x38x12 mm)
Weight 9-lb (4kg)
Destructive attack Level I
Line security Level I
Standby power Level I
Endurance Level IV

Product Information Sheet (PI)


Mounting Template


  1. The electromagnet is fitted with a metal oxide varistor to prevent interference, so do not install a second diode.
  2. Ensure that the control device is connected between the power source and the positive terminal of the lock
  1. Make sure the electromagnet and armature plate are properly aligned.
  2. Make sure the contact surfaces of the electromagnet and armature plate are clean and free from rust.
  3. Check the power leads with a meter, and make sure 12VDC or 24VDC ispresent.
  4. Make sure the rubber washer is installed and free from damage.
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