SECO-LARM Enforcer E-941SA — Electromagnetic Lock Installation Manual

Complete installation manual for the SECO-LARM Enforcer E-941SA series Electromagnetic Locks — indoor door-holding maglocks with 600-lb and 1,200-lb holding force options.

Models & Specifications

† With status LED, bond sensor, and door position sensor · ‡ With status LED and bond sensor · ‡‡ With status LED, bond sensor, and timer · *Holding force has not been verified by UL.

Additional Specifications

Features

• MOV surge protection
• Adjustable mounting bracket
• Complete mounting hardware for typical installations
• "L" bracket and "Z" bracket options available for easy mounting
• Detachable faceplate
• 12/24VDC selectable

Important Notes

• UL294 Indoor use only.
• Power must be provided by a Listed (UL294 or UL603) Class 2 Power Supply.
• Intended as an access control system accessory, installed per manufacturer instructions, ANSI/NFPA 70, and the local authority having jurisdiction.
• Minimum wire size: 22AWG.

Parts List

• 1x Electromagnet, 1x Armature plate, 1x Armature screw
• 2x Steel washers, 1x Rubber washer, 1x Sexnut bolt
• 2x Guide pins, 1x Door spacer, 1x Mounting plate
• 2x Tamper caps, 2x Hex wrenches, 1x Manual
• 2x Short self-tapping screws, 4x Long self-tapping screws, 2x Hex-head mounting screws
• 1x Armature plate holder (E-941SA-600DPSQ and E-941SA-1K2DPSQ models only)

Installation Notes

1. Read this manual thoroughly before beginning.
2. Indoor use only.
3. Depending on door/frame type, you may need optional SECO-LARM accessories: Z-brackets, L-brackets, U-brackets, and/or spacer plates.
4. Do not run power wires and signal wires in the same conduit — this can cause interference.
5. Do not install a diode in parallel with the lock — it may delay door release and cause residual magnetism.
6. Best location: inside the secured door, with wiring concealed in the frame to prevent tampering.
7. Minimum wire size: 22AWG.

Installation Steps

1. Fold the mounting template along the dotted line to form a 90-degree angle.
2. Close the door and find a mounting location on the door frame near the upper free-moving corner of the door (as close as possible to the upper frame corner opposite the hinges).
3. Use a hammer to lightly tap the two guide pins into the guide pin holes on the armature plate.
4. Place the template against the door and frame; mark hole locations.
5. Drill holes in the frame and door as marked (smaller holes on the door should not go all the way through).
6. Drill hole sizes depend on door type:
   • Hollow metal door: drill a 5/16" (8mm) hole through the armature-plate side for the armature screw, then a 5/8" (16mm) hole on the opposite side for the sexnut screw.
   • Reinforced door: drill a 1/4" (6.8mm) diameter, 1" (25mm) deep hole, tapped for M8x1.25 thread.
   • Solid-core door: drill a 5/16" (8mm) hole for the armature screw, then a 1/2" (12.7mm) diameter, 1" (25mm) deep hole from the opposite side for the sexnut screw.
7. Sandwich the rubber washer between the two metal washers and place them over the armature screw between the armature plate and armature plate holder — this lets the plate pivot to compensate for door misalignment.
8. Tighten the armature screw enough to resist a break-in attempt, but loose enough that the plate can still pivot slightly. Make sure the anti-spin guide pins sit in the guide pin holes. Tip: use thread-locking compound on the armature screw for a long-lasting installation.
9. Screw the two short self-tapping screws through the mounting plate's slotted holes without over-tightening, so the plate can still be adjusted until its long edge is parallel with the armature plate.
10. Once positioned correctly, use the four long self-tapping screws to permanently mount the mounting plate.
11. Drill the cable access hole; run wiring through the mounting plate's cable access hole and the hole in the door frame.
12. Remove the front cover of the electromagnet and run the power leads through the large cable access hole.
13. Push the electromagnet against the mounting plate so its ends are flush with the mounting plate's ends. Use the Allen wrench to screw the hex-head mounting screws through the bottom of the electromagnet into the mounting bracket.
14. Cut the wires to length for the terminal block. Set the voltage using the selection jumpers: position 2 jumpers on all four pins for 12VDC (default), or a jumper on the two center pins for 24VDC.
15. Connect power and other wires per the wiring diagram (below). Test the unit, replace the front cover, and install the hex-head tamper caps last — once installed, tamper caps are very difficult to remove.

Note: Incorrect input voltage setting may damage the lock. Connect switching devices (e.g. push-to-exit switches) between the power source and the positive terminal — connecting to the negative terminal may cause a delay in unlocking.

Wiring Diagram Notes

The circuit board provides N.O./COM/N.C. bond-sensor relay contacts plus voltage jumper selection (12VDC vs 24VDC). The control device connects between the power supply (12/24 VDC) and the lock. A typical access-control wiring setup includes: outdoor keypad, indoor N/C exit button, outdoor key switch, and the maglock (fail-safe, indoor).

Fail-safe note: A fail-safe lock automatically unlocks when power is lost — important for emergency egress (e.g. fire). All field wiring must be within the protected area.

Minimum Wire Gauge by Distance

Wire gauge (AWG) shown. For the complete chart, visit www.seco-larm.com.

Troubleshooting

Warnings & Warranty

Important: Incorrect mounting exposing the enclosure to rain or moisture could cause dangerous electric shock, device damage, and void the warranty. Installers are responsible for proper installation and sealing, and for compliance with all applicable national, state, and local laws/codes.

California Proposition 65 Warning: This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. See www.P65Warnings.ca.gov.

Limited Lifetime Warranty (US): Warranted against defects in material and workmanship for the lifetime of the product under normal service. SECO-LARM's obligation is limited to repair or replacement of defective parts (transportation prepaid by purchaser). Void if damage results from misuse, abuse, neglect, unauthorized repair/alteration, improper usage, or faulty installation. Outside the US, the warranty is 1 year.

Manufacturer

SECO-LARM U.S.A., Inc., 16842 Millikan Avenue, Irvine, CA 92606. Phone: (949) 261-2999 / (800) 662-0800. Email: sales@seco-larm.com. Web: www.seco-larm.com.