Authorized Seco-Larm Reseller

Seco-Larm E-941SA-300RQ 300-lb Electromagnetic Lock

Seco-LarmSKU: E-941SA-300RQ

Sale price$67.50
Usually ships within 3-5 business days

Prefer to order over the phone?
Our team of experts is a phone call away!
Call us at 718-435-2800


The E-941SA-300RQ electromagnetic lock 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.

  • 300-lb (136kg) Holding force
  • No residual magnetism
  • MOV Surge protection
  • Anodized aluminum housing (US 28)
  • Suitable for cabinets, small enclosures, or pedestrian gates
  • Reversible installation for right- or left-swing doors
  • 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
  • Lifetime limited warranty*

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


Holding Force 300-lb (136kg)
Operating Voltage 12/24 VDC ±10%
Current Draw 420mA@12VDC, 210mA@24VDC
Operating Temperature 14º~131º F (-10º~55º C)
Electromagnet Dimensions 7-7/8″ x 1-3/8″ x 1″ (200 x 35 x 24 mm)
RoHS Compliance Yes
Armature Dimensions 6″ x 3/8″ x 1-1/4″ (152 x 10 x 32 mm)
Weight 3-lb 5-oz (1.5kg)
Case Quantity 10 pcs



Door does not lock
  • Check to make sure the wires are securely tightened to the terminal block.
  • Check that the power supply is connected and operating.
  • Use a multimeter to check the resistance of coils inside the lock. See below.
  • Make sure the rubber washer is installed and free from damage.
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.

Why buy Certified?

Certified Alarm Distributors - Top USA Reseller Certified Alarm Distributors - Your team of experts Certified Alarm Distributors - Easy 30 day returns
Top USA Reseller
Trusted since 1976
Your Team of Experts
Pro Help when you need it
Easy 30 Day Returns
Satisfied or refunded

Secure Checkout With

American Express Apple Pay Diners Club Discover Meta Pay Google Pay Mastercard Shop Pay Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

You may also like

Recently viewed