Security Door Controls LR100-MDK QuietDuo Retrofit Motorized Electric Latch Retraction (ELR) Kit offers a seamless solution for enhancing access control and safety in panic and fire-rated environments. Specifically designed for Marks USA M9900 exit devices, this kit enables efficient electric latch retraction and dogging, ensuring both ease of access and secure egress. The LR100-MDK operates quietly and efficiently, utilizing a motorized mechanism that allows for simultaneous latch retraction and pushpad depression. It is compatible with a range of access control systems, making it versatile for various building automation needs. With a low current draw of 1.5 Amp inrush and 200 mA continuous, this unit not only conserves energy but also reduces installation costs thanks to its straightforward retrofit capability-there's no need to remove existing exit devices. This Grade 1 kit is engineered for high-traffic use, ensuring durability and reliability over time. The design eliminates the need for costly replacements of exit devices while providing significant savings on labor and power requirements. Whether you choose to install it in the field or send it to SDC for factory installation, the LR100-MDK is a smart investment for modern security solutions.
QuietDuo, Retrofit Motorized Electric Latch Retraction (ELR) Kit, Marks Field Install Kit for M9900 Exits, 36in Only Opening
SDC’s QuietDuo LR100 series retrofit electric latch retraction kits enable electric access control and dogging of panic and fire rated mechanical exit devices. When energized the motor retracts the exit device latch and pulls the pushpad into the dogged (depressed) position enabling momentary or sustained push and pull operation of the door. The latch retraction mechanism may be activated by an access control, remote control device or building automation system. No door sequencer required for a pair of manual doors when connected to a suitable power supply. The exit device always provides uninhibited egress. The patented design was the first retrofit motorized electric latch retraction kit brought to market and has been recognized as the market leader ever since. The use of a motorized electric latch retraction device provides several advantages over solenoids including lower current draw, quieter operation and greater durability over time. Designed with cost savings in mind, SDC’s LR100 series retrofit ELR kits not only eliminate the need for costly replacements of existing exit devices, but also provide cost savings on installation and power requirements due to significantly less labor time and current draw when compared to competitive retrofit kits. LR100 kits retrofit select exit device brands without removing the device from the door. LR100 models are one unit completely housed within the rail of the device behind the access cover, whereas LR100-EM models are two piece space saver units, intended to gain up to one inch in spacing within the device, placing the controller board externally to accommodate smaller field cut devices for smaller openings or where space is limited within the rail.
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Alternate Codes: LR100-MDK, LR100MDK, SDCLR100MDK
Category: Electrified Panic Devices, Panic Devices & Exit Alarms
Certifications: A156.3, ANSI, BHMA, UL 10C, UL 305, ULC-S104
Compatibility: Marks USA - M9900, Marks USA - M9900VR
Current Draw: 1.5 Amp Inrush, 200 mA Continuous
Device Width: 36"
Door Application: Panic Devices & Exit Alarms
Exit Device Part Type: Electric Latch Retraction Retrofit Kit, Motorized Latch Retraction
Grade: Grade 1
Manufacturer: Security Door Controls
Series: LR100
Voltage: 24
Voltage Type: VDC - Direct