Seco-Larm E-941SA-600PQ Secolarm,600Lb Mag-Lck W/Bond-Snsor+Led

The Seco-Larm E-941SA-600PQ is a UL-listed, 600 lb (272 kg) single-door electromagnetic lock from the ENFORCER product line, designed for professional access control installations where reliable fail-safe door securing is required. Built around an anodized aluminum housing (US 28 finish), the lock operates on selectable 12 or 24 VDC and features zero residual magnetism after power removal, ensuring the door releases cleanly every time. The PQ variant adds two critical system-intelligence features over the base model: an integrated bond sensor relay that reports the true locked/unlocked status of the armature plate to the access control panel, and a status LED that provides on-door visual confirmation of lock engagement. MOV surge protection safeguards the lock's electronics against voltage transients. An adjustable mounting bracket and a complete hardware kit are included, with optional L-bracket and Z-bracket accessories available for non-standard door configurations. Operating temperature is rated from 14 °F to 131 °F (−10 °C to +55 °C), making the unit appropriate for climate-controlled interior commercial environments.

Key features & benefits

• 600 lb / 272 kg Holding Force — Delivers substantial electromagnetic clamping force per the manufacturer's published datasheet, providing a high-security barrier against forced entry on commercial single-leaf doors.
• Integrated Bond Sensor Relay — The PQ variant includes a built-in bond sensor relay that reports real-time armature plate engagement status to the access control panel, enabling accurate door-held-open alarms and audit trail accuracy without an external sensor.
• On-Door Status LED — A dedicated status LED provides immediate visual confirmation of lock engagement at the door, aiding technician commissioning, daily security checks, and end-user awareness.
• Selectable 12 / 24 VDC Dual Voltage Operation — Voltage is field-selectable between 12 VDC and 24 VDC, allowing the lock to be matched to virtually any industry-standard access control power supply without hardware changes.
• Zero Residual Magnetism — The electromagnet is engineered to eliminate residual magnetism after power is removed, ensuring immediate, clean armature plate release to prevent door-sticking on de-energization.
• MOV Transient Surge Protection — An integrated Metal Oxide Varistor (MOV) protects the lock's coil and control circuitry from inductive voltage spikes and line transients, extending service life in real-world electrical environments.
• Anodized Aluminum Housing (US 28 Finish) — The lock body and armature plate are machined from aluminum with a US 28 anodized finish, providing a professional appearance consistent with commercial-grade architectural hardware.
• UL Listed — The E-941SA-600PQ carries UL listing, satisfying insurance, code-compliance, and AHJ requirements commonly mandated for access-controlled egress and entry points.
• Adjustable Mounting Bracket Included — The unit ships with an adjustable mounting bracket and a complete hardware kit for typical door installations, with optional L-bracket and Z-bracket accessories sold separately for non-standard door frames and profiles.
• Removable Armature Cover Plate — The armature plate features a removable cover plate, facilitating field cleaning and surface maintenance to preserve optimal holding-force performance over the product's service life.