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SDC QuietDuo LR100 Series Retrofit Electric Latch Retraction Kit with 24VDC Motorized Operation
Professional Retrofit Electric Latch Retraction Solution
The SDC QuietDuo LR100 Series retrofit electric latch retraction kit enables electric access control and dogging of panic and fire rated mechanical exit devices. This 24VDC motorized system retracts the exit device latch and pulls the pushpad into the dogged position for momentary or sustained push and pull operation. The patented design provides lower current draw, quieter operation, and greater durability compared to solenoid-based systems while maintaining uninhibited egress at all times.
Professional Features & Benefits
- Motorized Electric Operation: 24VDC motorized system provides lower current draw and quieter operation compared to solenoid alternatives for enhanced reliability.
- Simultaneous Multi-Function: Provides latch retraction, dogging, and pushpad depression in select models for complete door control functionality.
- Retrofit Installation: Installs on select exit device brands without removing the device from the door, reducing installation time and costs.
- Space-Saving Options: LR100-EM models feature two-piece design with external controller board to accommodate smaller field cut devices and limited rail space.
- Fire and Panic Rated: Maintains UL 305 Panic Hardware and UL 10C fire rating compliance for code-required applications.
- Low Energy Compatible: Designed for compatibility with low energy operators and building automation systems.
- High Traffic Durability: Engineered for demanding commercial applications with enhanced durability over time.
- Complete Housing Design: Standard LR100 models are completely housed within the device rail behind the access cover for clean installation.
Technical Specifications
- Commercial/Residential: Commercial
- Department: Door Hardware
- Electronic: Yes
- Product Category: Exit Devices and Trim
- Product Group: Exit Devices and Trim
- Product Model: LR100
- Product Subgroup: Parts and Accessories
- Product Type: Retrofit Electric Latch Retraction Kits
- Product Voltage: 24VDC
- Series: LR100 Series
- Subcategory: Retrofit Electric Latch Retraction Kits
Professional Applications
- Commercial Building Security Systems
- Educational Institution Safety Systems
- Healthcare Facility Access Control
- Retail Loss Prevention
- Industrial Facility Monitoring
- Emergency Exit Compliance
- Government and Municipal Buildings
Why Choose SDC Quality?
SDC QuietDuo LR100 Series products deliver professional-grade reliability with patented motorized design recognized as the market leader in retrofit electric latch retraction. UL 305 Panic Hardware and UL 10C fire rating certifications ensure code compliance for demanding commercial applications. Engineered for high traffic use with lower current draw and enhanced durability where dependable performance is essential.
Manufacturer Resources
SDC Full Catalog
Product Specs
- Subcategory:
- Retrofit Electric Latch Retraction Kits
- Series:
- LR100 Series
- Product Group:
- Exit Devices and Trim
- Product Subgroup:
- Parts and Accessories
- Product Type:
- Retrofit Electric Latch Retraction Kits
- Commercial/Residential:
- Commercial
- Electronic:
- Yes
- Tags:
- sdc lr100ark
- Product Model:
- LR100
- Product Voltage:
- 24VDC
- Product Category:
- Exit Devices and Trim
- Department:
- Door Hardware
SDC LR100JAK – Frequently Asked Questions
1) What is the SDC LR100 series retrofit electric latch retraction kit used for?
The LR100 series provides electric latch retraction for existing cylindrical locksets. It retrofits standard mechanical locks to enable remote release capability for access control systems.
2) Which door types and locksets are compatible with the LR100 kit?
Compatible with most standard cylindrical locksets on wood and metal doors. Verify door thickness and lockset backset before ordering. Check manufacturer specifications for specific lock compatibility.
3) Does the LR100 work on both left-hand and right-hand doors?
Yes, the kit is field-reversible for both left-hand and right-hand door applications. Install and adjust according to door swing direction during field installation.
4) What finishes are available for the LR100 series?
Available in standard architectural finishes to match existing hardware. Verify specific finish options with manufacturer documentation as availability may vary by model.
5) What power requirements does the LR100 electric latch kit need?
Operates on low voltage DC power, typically 12V or 24V depending on model. Connect to access control system power supply or dedicated transformer. Check specifications for exact voltage and current draw.
6) Does the LR100 meet fire and life safety code requirements?
Designed for code compliance when properly installed. Maintains mechanical egress function during power failure. Verify local code requirements and AHJ approval before installation.
7) What components are included in the LR100 retrofit kit?
Kit includes electric latch retraction mechanism, mounting hardware, wiring connections, and installation instructions. Additional accessories may be required depending on specific application.
8) How difficult is field installation of the LR100 kit?
Designed for field installation by qualified technicians. Requires basic electrical connections and mechanical adjustment. Follow manufacturer installation template and wiring diagrams carefully.
9) Can the LR100 latch retraction be adjusted after installation?
Yes, includes field-adjustable settings for timing and force. Fine-tune operation to match door and frame conditions. Test all adjustments thoroughly after installation.
10) What other SDC electric latch products work with this series?
Part of SDC's comprehensive electric latch product line. Consider other SDC access control solutions for complete system integration and compatibility.
11) What door conditions affect LR100 performance?
Door alignment, frame condition, and existing lockset operation impact performance. Ensure door closes and latches properly before retrofit installation. Address any door sagging or binding issues first.
How fast can I get the SDC LR100JAK delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the SDC LR100JAK come with a warranty?
Absolutely. The SDC LR100JAK is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the SDC LR100JAK?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the SDC LR100JAK from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.