1,200-lb Electromagnetic Lock, Bond Sensor, Status LED, Timer, 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 Listed (Access Control)
  • 1,200-lb Holding force
  • Anodized aluminum housing (US 28)
  • Selectable 12/24 VDC operation
  • No residual magnetism
  • MOV surge protection
  • Adjustable mounting bracket
  • Complete mounting hardware for typical installations
  • “L” and “Z” brackets available for easy mounting
  • Detachable faceplate
  • Built-in dual-colored status LED and bond sensor to indicate locking status
  • Built-in timer: 1~78 seconds
  • Lifetime Limited Warranty*

*Contact SECO-LARM for details. Applies in U.S.A. & Canada only.

Holding force 1,200-lb
Operating voltage 12 or 24 VDC
Current draw 12VDC: 500mA 24VDC: 270mA
Bond sensor SPDT relay, 3A@12VDC
Operating temperature 32°~120°F (0°~49°C)
Dimensions – Magnet 10-1/2″x2-7/16″x1-9/16″ (267x62x40 mm)
Dimensions – Armature 7-1/4″x2-7/16″x5/8″ (184x62x16 mm)
Destructive attack Level 1
Line security Level 1
Standby power Level 1
Endurance Level IV

Product Information Sheet (PI)


Mounting Template

Doors lock, but can easily be forced open
  • 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
  • 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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