The SECO‑LARM E‑941SB‑600 is a UL‑listed 600‑lb electromagnetic lock designed to secure doors against unauthorized entry. When power is applied, the electromagnet creates a strong magnetic field that holds the steel armature plate — mounted on the door — firmly in place. Once power is removed, the lock deactivates completely with no residual magnetism, allowing the door to function normally.
Key Features:
| Operating voltage | 12/24 VDC (selectable) |
| Current draw | 500mA@12VDC, 250mA@24VDC |
| Door thickness (max.) | 2″ (50mm) |
| Holding force | 600-lb (272kg) |
| Dimensions – Magnet | 9-13/16″x1-11/16″x1″ (250x43x25 mm) |
| Dimensions – Armature Plate | 7-1/4″x1-1/2″x1/2″ (185x38x12 mm) |
| Operating humidity | 0~85 (non-condensing) |
| Operating temperature | 32°~120° F (0°~49° C) |
| Lock surface temperature | ≤ Ambient temperature ± 68° F (20° C) |
| Destructive attack | Level I |
| Line security | Level I |
| Standby power | Level I |
| Endurance | Level IV |
| Weight | 4-lb 6-oz (2kg) |
| Static strength | 500-lb |
| Dynamic strength | 50 ft-lb |
| Endurance | 250,000 cycles |