An electric latch retraction (ELR) kit is a device that enables remote unlocking and dogging of exit devices on doors. You can use an electric signal to unlock a door remotely with an electric latch retraction kit. Usually, it is utilized in conjunction with an access control system, like a keypad or key fob. The kit signals the latch to retract and open the door when the right code is entered, or the fob is scanned. Electric latch retraction (ELR) kits are crucial in improving exit devices by enhancing their functionality, accessibility, and security features. ELR kits significantly enhance exit devices' overall performance and usability, making them essential in modern access control systems for commercial and institutional settings.
Features of Electric latch retraction kits
Functionality
Enables remote unlocking and dogging for exit devices.
Compatible with access control systems, remote controls, and building automation.
Supports momentary or sustained push/pull door operation when activated.
Operation
A motorized mechanism retracts the exit device latch and pulls the push pad into the dogged position.
Offers quiet performance, especially with continuous-duty motors.
Simultaneously retracts both the latch and push pad.
Installation and Compatibility
Retrofit options are available for existing exit devices without door removal.
Compatible with various brands and types of exit devices, including rim, mortise, surface vertical rod, and concealed vertical rod models.
Designed to accommodate different door sizes and space constraints.
Performance
It features a lower current draw compared to solenoid-based systems.
Provides more excellent durability over time.
Many models are UL-listed and ANSI/BHMA Grade 1 certified.
Benefits of electric latch retraction kits
Electric latch retraction (ELR) kits provide significant advantages that enhance security, convenience, cost-efficiency, and functionality in door access systems. Key benefits include:
Enhanced Security
Controlled Access: ELR kits integrate with access control systems, allowing entry via key cards, fobs, or codes, improving security by limiting unauthorized access.
Remote Locking and Dogging: Enable remote locking and dogging (holding doors open), ideal for emergencies or high-traffic periods.
Improved Convenience
Efficient Operation: Facilitate smooth push/pull door access without manual locking, benefiting users with disabilities or carrying items.
Quiet Operation: Motorized mechanisms offer quieter performance than solenoids, reducing noise and wear over time.
Cost-Effectiveness
Retrofit Compatibility: Many ELR kits can be added to existing exit devices, avoiding expensive replacements and lowering installation costs.
Energy Efficiency: Motorized kits consume less power than solenoid-based systems, reducing energy expenses.
Flexibility and Compatibility
Wide Application: Compatible with various exit device types, including rim, mortise, and vertical rods, for diverse door configurations and security needs.
Custom Fit: Available in multiple sizes to accommodate different door specifications.
Compliance and Safety
ADA Compliance: Enhances accessibility, helping facilities meet Americans with Disabilities Act (ADA) standards.
Fire Safety Standards: Many kits comply with stringent fire safety regulations, ensuring safe use with panic and fire exit hardware.
These features make ELR kits a valuable component of modern access control systems in commercial and institutional settings.
Qualitydoor.com Recommended Best Electric Latch Retraction Kits
Von Duprin Electric Latch Retraction Kits
Von Duprin’s Quiet Electric Latch Retraction (QEL) offers electronic control for exit devices, specifically designed for environments where minimal operational noise is essential. It is Von Duprin's preferred solution for settings such as hospitals, libraries, museums, theaters, and other noise-sensitive areas.
The QEL can retract the latch bolt either momentarily or for extended, scheduled periods through an access control system. It is compatible with Von Duprin 98/99, 94/95, 33A/35A, and 22 Series panic and fire-rated exit devices and is also available as a modular kit to retrofit existing devices. These kits uphold stringent security standards while facilitating effortless entry and exit management.
Below are a few popular latch retraction kits.
Von Duprin 47447540 Qel quiet electric latch retraction
Von Duprin 958003 Modular motorized latch retraction
Sargent Electric Latch Retraction Kits
Sargent M56a electric latch retraction kits are designed for installation on Sargent 80 Series exit devices, enabling remote unlocking via an electronic signal. These kits are typically integrated with access control systems like keypads or critical fob systems. When authorized credentials are used, the system sends a signal to the electric latch, retracting it and unlocking the door.
M56a Electric Latch Retraction kits for Sargent 80 Series exit devices are available in various bar lengths, including F, G, J, and E bars, ranging from 24” to 48” in size.
Installation Guide
How to Install a Sargent M56A electric latch retraction kit in a Sargent (8888) exit device?
Installation of a Request to Exit Switch and a QEL on a Von Duprin 98/99 Series Exit Device
Final Thoughts
Electric latch retraction kits represent a transformative upgrade for exit devices, combining enhanced security, seamless functionality, and user convenience. They are indispensable in modern access control systems, offering compatibility with various device types and compliance with industry safety standards. Whether you choose Von Duprin’s innovative Quiet Electric Latch Retraction (QEL) or Sargent’s versatile M56a kits, these solutions ensure reliable performance, reduced maintenance, and an improved experience for facility managers and users. Investing in ELR kits elevates the efficiency and safety of your access control systems. It ensures compliance with accessibility and fire safety regulations, making them an innovative and future-proof choice for commercial and institutional applications.
Visit Qualitydoor.com and select the best Exit Devices, Electric Latch Retraction kits, and other door hardware parts for your facility from our wide collection. Contact our experts for additional details and assistance.
Give us a call at (800) 992-3667.
