Seco-Larm E-941SA-1200 Single-Door Electromagnetic Lock — 1,200 lb (545 kg) Holding Force | Vidimost Chicago
Model / Series: E-941SA-1200
The Seco-Larm E-941SA-1200 is a single-door electromagnetic lock with 1,200 lb (545 kg) holding force — anodized aluminum housing, MOV surge protection, no residual magnetism, dual 12 / 24 VDC operation. Multi-listed UL294 (access control), UL1034 (burglary-resistant), UL864 (fire alarm), UL10C / UL10B (fire tests), and ULC-S104 (Canada). The Chicago choice for single-door electromagnetic-lock installations on commercial and multi-tenant residential openings.
Specifications
- Brand
- Seco-Larm
- Series
- Seco-Larm E-941SA
- Model
- E-941SA-1200
- Form Factor
- Single-door surface-mounted electromagnetic lock
- Holding Force
- 1,200 lb (545 kg)
- Voltage
- 12 or 24 VDC (dual)
- Housing
- Anodized aluminum
- Surge Protection
- MOV (metal oxide varistor) surge protection
- Residual Magnetism
- None — door operates normally without residual magnetism after deactivation
- Mounting
- Adjustable mounting bracket; complete mounting hardware for typical installations
- Faceplate
- Detachable for easy access to wiring
- UL Listings
- UL 294 (Access Control System Units); UL 1034 (Burglary Resistant Electric Lock); UL 864 (Fire Alarm Systems); UL 10C and UL 10B (Fire Tests)
- ULC Listing (Canada)
- ULC-S104
Best Fit & Recommended For
Seco-Larm E-941SA-1200 Single-Door Electromagnetic Lock
The Seco-Larm E-941SA-1200 is a single-door electromagnetic lock with 1,200 lb (545 kg) holding force — applies a strong magnetic field to the steel armature plate on the secured door when energized; releases instantly when power is removed. Anodized aluminum housing, no residual magnetism after deactivation (the door operates normally without sticking), MOV surge protection on the input. Dual 12 / 24 VDC operation. Multi-listed UL294 / UL1034 / UL864 / UL10C / UL10B / ULC-S104.
What’s Confirmed by the Official Seco-Larm Spec
These specifications come from Seco-Larm’s published E-941SA-1200 documentation:
- Holding force: 1,200 lb (545 kg)
- Voltage: 12 or 24 VDC
- Housing: anodized aluminum
- Surge protection: MOV (metal oxide varistor)
- Residual magnetism: none
- Mounting: adjustable mounting bracket; complete mounting hardware included for typical installations; detachable faceplate for wiring access
- UL Listings: UL 294 (Access Control System Units), UL 1034 (Burglary Resistant Electric Lock), UL 864 (Fire Alarm Systems), UL 10C and UL 10B (Fire Tests)
- ULC (Canada): ULC-S104
Maglock vs. Electric Strike — When Each Fits
The fundamental architectural difference: maglocks lock the door to the frame using a magnetic field (no latch, no strike); electric strikes release the existing latch on a mechanical lockset. Choose maglocks when:
- The door does NOT have a working latch / lockset, or the existing latch is unreliable
- The opening allows surface-mount hardware (top-of-door magnetic-lock mounting)
- The project includes proper egress hardware (REX motion sensor + push-to-exit button + fire-alarm interlock — required by code on maglock installations)
- The door must release instantly when power is removed (fire-alarm interlock requirement)
Choose an electric strike instead when:
- The door already has a working cylindrical, mortise, or rim exit lockset
- The latch is functional and meets code for the opening
- A simpler “release the latch electrically” approach fits the project budget and architecture
E-941SA-1200 vs. ADI PRO 0E-MAG600DS
| Feature | E-941SA-1200 (this page) | ADI PRO 0E-MAG600DS |
|---|---|---|
| Holding force | 1,200 lb (545 kg) | 600 lb |
| Doors per unit | Single | Single |
| Built-in features | UL294/1034/864/10C/10B + ULC-S104, MOV surge | Bond sensor, LED indicator, adjustable timer |
| Best fit | Commercial heavy-duty single-door | Cost-conscious single-door with built-in monitoring features |
For high-cycle commercial entries and heavier doors, the 1,200 lb E-941SA-1200 is the right pick. For lighter-duty residential / interior doors with built-in bond-sensor / LED monitoring requirements, the 600 lb ADI PRO 0E-MAG600DS is a sensible alternative.
Where the Seco-Larm E-941SA-1200 Wins in Chicago
- Commercial single-door perimeter and interior openings
- Multi-tenant residential building stairwell and corridor maglock installations
- Office building tenant suite doors
- Healthcare clinic and outpatient facility doors
- Education facility administrative and corridor doors
- Hospitality back-of-house and operations doors
- Retail back-of-house and after-hours service doors
- Industrial / warehouse personnel-door maglocks
- Government / municipal interior-door maglocks
- Property management standardized maglock deployments across multiple buildings
Local Chicago Coverage
Vidimost installs the Seco-Larm E-941SA-1200 across the full Chicago metropolitan area for commercial single-door electromagnetic-lock applications.
Recommended Pairings
- ADI PRO 0E-MAG600DS — lighter-duty 600 lb maglock for low-cycle interior doors
- HES 1500 — electric-strike alternative for openings with working locksets
- HES 9500 — fire-rated rim-exit alternative
- Code-required egress hardware: REX motion sensor, push-to-exit button, fire-alarm interlock relay (specified per opening at site walkthrough)
Professional Installation by Vidimost
Vidimost LLC installs the Seco-Larm E-941SA-1200 across Chicago for commercial single-door maglock applications. Full-scope service includes site walkthrough, code-compliance review (REX, push-to-exit, fire-alarm interlock per NFPA 101 / IBC), maglock and armature-plate mounting on the door header, MOV-protected 12 / 24 VDC wiring, integration with the access control panel, and operator training. Contact us for a free site walkthrough and quote.