Best Electric Latch Retraction Kit Options for Secure Doors
Answering the core buyer question: these electric latch retraction kits enable smooth, automated unlocking and re-latching of exit devices for improved access control. They’re best for facility managers, building maintenance teams, and security upgrades where quick, reliable door operation matters. Below are five well-suited options, with quick notes on who each product targets and potential limitations to consider.
| Product | Brand | Key Feature | Best For |
|---|---|---|---|
| Sdc LR100VDK Latch Retraction Kit, Use with 98 Series | SDC | LR100VDK compatibility with 98 series | Facilities upgrading legacy doors |
| SDC LR100FAK QUIET DUO Falcon/Dor-O-Matic Electric Latch Retraction Kit | Security Door Controls | QUIET DUO operation, LR100FAK | Low-noise installations in offices or hospitals |
| Security Door Controls – LR100FCK – First Choice, Elr Kit | Security Door Controls | LR100FCK kit for easy retrofit | Cost-effective retrofit projects |
| Latch Retraction Kit, Use with 98 Series | SDC | Compatibility with 98 Series | Simple upgrade path for 98 Series doors |
| Sargent M56A-E Electric Latch Retraction Motor Retrofit Kit For 80 & P Series Exit Device | Sargent ASSA ABLOY | Motor retrofit for 80 & P Series | Classic exit devices requiring modern control |
Sdc LR100VDK Latch Retraction Kit

Best for: Buildings with 98 Series exit devices seeking a straightforward retrofit. The LR100VDK is designed to activate and retract the latch efficiently, aiding quick egress and controlled access. Selection helps maintain existing hardware while modernizing operation.
Limitations: Ensure compatibility with existing door hardware and power supply requirements before purchase. Consider whether the kit’s wiring needs align with your installation site.
SDC LR100FAK QUIET DUO Falcon/Dor-O-Matic

Best for: Environments where noise reduction is important, such as offices, clinics, or educational facilities. The QUIET DUO design emphasizes smoother operation with reduced sound during latch retraction. This kit is suitable when keeping a discreet, unobtrusive door experience is a priority.
Limitation: Quiet operation might come with slightly longer actuation times; verify timing fits your security and traffic flow needs.
Security Door Controls LR100FCK Kit

Best for: Retrofit projects that require a cost-effective, reliable kit. The LR100FCK is pitched as a First Choice ELR kit for straightforward replacement of older latch mechanisms, balancing performance and price.
Limitation: May require additional hardware compatibility checks with non-standard door frames or panels.
Latch Retraction Kit, Use with 98 Series

Best for: Projects upgrading 98 Series doors where a dedicated latch retraction option is needed. This kit aligns with the same era of hardware, reducing integration complexity and keeping maintenance familiar for technicians.
Limitation: Availability and compatibility should be confirmed for any non-standard 98 Series configurations.
Sargent M56A-E Electric Latch Retraction Kit

Best for: Buildings using SARGENT 80 or P Series exit devices needing a motor retrofit to enable electric latch retraction. This option integrates with Sargent hardware to preserve device aesthetics while enabling automated operation.
Limitation: Retrofit compatibility depends on existing device model and mounting conditions; verify installation requirements with a qualified technician.
Buying Guide
- Door hardware compatibility: Confirm the latch type, exit device series, and mounting geometry before selecting a kit. Some kits are designed for specific series (e.g., 98 Series, P Series) and may not fit alternative setups.
- Power and wiring considerations: Evaluate your door’s power supply, circuit load, and wiring routes. Some kits require dedicated power or surge protection; ensure electrical capacity meets the kit’s needs.
- Noise level: If the installation is in a quiet environment, consider QUIET DUO or similar options to minimize operation sound without sacrificing reliability.
- Retrofit vs. new install: Retrofit kits are ideal for upgrading existing doors, while new installs may offer more straightforward integration with modern hardware from the outset.
- Maintenance and serviceability: Look for kits with accessible components and clear replacement parts availability to minimize downtime during maintenance.
- Security implications: An electric latch retraction kit can affect access control and egress timing. Ensure the chosen kit meets local codes and facility security requirements.
- Installation complexity: Some kits are simple swaps, while others require professional installation. Plan for technician time and site readiness accordingly.
FAQ
- What is an electric latch retraction kit? It is a device that activates and retracts a door latch electronically to enable controlled entry and exit, often used with standard exit devices.
- Which kit is best for a quiet office environment? The LR100FAK QUIET DUO is designed for reduced noise during latch retraction.
- Can these kits be used on all exit devices? Not universally. Check compatibility with the door’s exact series, model, and mounting, as some kits are designed for specific hardware.
- Do these kits require professional installation? Some are simple retrofits; others may require electrical wiring and device alignment by a professional.
- Are there any safety considerations? Ensure installation adheres to local codes, and verify that egress timing remains compliant after upgrade.
- Which kit is best for upgrading a legacy 98 Series door? The Sdc LR100VDK or the Latch Retraction Kit for 98 Series options are designed for that path, depending on your exact hardware.