SECO-LARM E-941SA-80Q

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Overview

Function Description
Important Technical Specifications
Usage Features
Maintenance Features

The SECO-LARM E-941SA-80Q is an 80-lb miniature electromagnetic lock designed for securing various access points, including cabinets, drawers, and doors. When power is applied, its built-in electromagnet activates, attracting a door-mounted steel armature plate and preventing the door from opening. Conversely, removing power releases the armature, allowing the door to open. This fail-safe design ensures that the lock unlocks when power is lost. SECO-LARM offers a comprehensive range of electromagnetic locks with holding forces up to 1,500-lb for single and double doors and gates.

Function Description:

The E-941SA-80Q operates on the principle of electromagnetism to provide security. It consists of an electromagnet unit and a corresponding armature plate. When energized, the electromagnet creates a strong magnetic field that pulls and holds the armature plate, effectively locking the secured item. This mechanism is ideal for applications requiring a compact and reliable locking solution. The lock is designed for indoor use only, ensuring optimal performance and longevity in controlled environments.

Important Technical Specifications:

Holding Force:
- 12VDC: 80-lb (36kg)
- 24VDC: 110-lb (51kg)
Operating Voltage: 12~24 VDC ±10%
Current Draw:
- 12VDC: 60mA
- 24VDC: 120mA
Dimensions:
- Magnet: 2¾"x1¼"x¾" (70x31x19 mm)
- Armature: 2⅜"x1¼"x⁵⁄₁₆" (60x31x8.2 mm)
Weight: 0.9-lb (410g)
Operating Temperature: 14°~131° F (-10°~55° C)
Destructive Attack Level: Level I
Line Security: Level I
Endurance Level: Level I
Standby Power: Level I
Surge Protection: MOV (Metal Oxide Varistor)

Usage Features:

Compact Design: Its miniature size makes it suitable for spaces where a small footprint is crucial, such as cabinets, drawers, and other confined areas.
Low Current Draw: The lock is energy-efficient, consuming minimal power during operation.
12~24 VDC Operation: Compatible with common low-voltage power supplies, offering flexibility in installation.
No Residual Magnetism: Designed to release the armature plate cleanly and immediately when power is removed, preventing any lingering magnetic force that could hinder unlocking.
MOV Surge Protection: Integrated MOV protects the lock from voltage spikes and power surges, enhancing its durability and reliability.
Complete Mounting Hardware: Includes all necessary hardware for typical installations, such as an L-bracket, armature plate, screws, washers, guide pins, and hex wrenches. An optional M-bracket is available separately for specific armature mounting configurations (raised or recessed).
Flexible Installation Options: The manual provides detailed instructions and diagrams for various installation scenarios, including sliding doors, hinged doors, drawer backs, and drawer fronts. The L-bracket can be used for both magnet and armature mounting, and the armature plate is designed to pivot slightly to compensate for door misalignment, ensuring optimal contact with the electromagnet.
Wiring Guidance: Clear instructions for connecting the power input wires (red to positive, black to negative) and recommendations for placing switching devices (e.g., push-to-exit switches) between the power source and the positive terminal of the lock to avoid unlocking delays.
Troubleshooting Guide: Includes a section to help diagnose common issues such as the lock not engaging, being easily forced open, or experiencing delays in releasing, with practical solutions like checking wiring, power supply, alignment, and cleanliness of contact surfaces.

Maintenance Features:

No Diode Installation: Users are advised not to install a diode in parallel with the electromagnetic lock, as this can cause release delays and residual magnetism. The built-in MOV provides sufficient surge protection.
Cleanliness of Contact Surfaces: To ensure optimal performance and prevent rust, it is recommended to keep the contact surfaces of the electromagnet and armature plate clean. A light coat of silicone lubricant can also be applied to help prevent rust and maintain smooth operation.
Proper Installation: Emphasizes the importance of correct installation to prevent tampering and ensure the longevity of the device. The best location for installation is on the inside of the secured unit with concealed wiring.
Regular Checks: Periodically verify that wires are securely connected, the power supply is operating correctly, and the rubber washer (which helps prevent residual magnetism) is installed and free from damage.
Environmental Considerations: Designed for indoor use only, protecting it from elements like rain and moisture that could cause damage and void the warranty.