SDC Quiet Duo LR100 ELR Kit

Electric Latch Retraction


Retrofits exit devices for electric access control and dogging.

SKU: LR100
Your Current Selections:
Your Current Selections:
  • UL Classified proprietary electric latch retraction kit for use with 3hr fire rated & non-fire rated manual crash bar exit devices
  • ONLY 450 mA Inrush, 180 mA Continuous @ 24VDC — Save on lower amp power supply!!
  • For access control and sustained dogging applications
  • Eliminates need for costly replacement of existing exit device
  • Significantly less labor and costs compared to competitive retrofit kits
  • Eliminates need for costly power supplies with high inrush circuitry
  • Compatible with UL Listed Access Control Power Supply
  • Only 1 Amp power supply required for up to 2 exit devices
  • Low current enables longer wire runs with smaller gauge wire
  • Simultaneous latch retraction and dogging (pushpad depressed*) for most exit devices
  • Pushpad is depressed* electrically for quieter push / pull operation * IMPORTANT NOTE: Electric pushpad depression not available with Corbin Russwin, Yale and Adams Rite.
  • Automatic re-trigger if device does not pull on first try
  • No door sequencers required for pairs of manual doors
  • Installs in Von Duprin non-fire rated panic device without removing from the door
  • Fire rated device must be removed from door for kit installation, while head and latch disassembly is not required
  • Optional Latch Status kits & REX or Pushpad/Dogging Status kits for Von Duprin series models available for custom order — please call us at 937-890-2333 if you need this.
SDC Now you can bring a panic opening online for access control, and do electric dogging of today's leading exit device brands without overspending, and without an all-day service call from your installer.  The Quiet Duo ELR LR100 Kit gives you the results of professional grade maglocks while reducing the costs of complex hard-wired installs, and reducing the need to remove some vertical rod devices.  Before Quiet Duo, the only option for electrifying a door with a pushbar was to remove your mechanical panic hardware, and install electromagnetic locks with the peripheral request-to-exit devices.  Before Quiet Duo the only way to retract the exit device latch was to physically go to the door and use your hex or cylinder key.  The Quiet Duo LR100 kit takes you from a ten-speed to a motorcycle without buying the motorcycle.  Quiet Duo arrives fully assembled, requires common tools for installing, and will save you many trips to the door.  The days of physically visiting the door each time you needed to 'dog' (retract the latch) are over, and with Quiet Duo, transforming your opening to keyless card entry, or code access, is a lot less complicated (and less costly!) than anytime before.

Security Door Controls (SDC)



Exit Device

Adams Rite 8800, Corbin Russwin ED4200, Corbin Russwin ED5200, Corbin Russwin ED5400, Corbin Russwin ED5800, Dor-O-Matic 1490, Dor-O-Matic 1590, Falcon 1690, Falcon 1790, First Choice 3600, First Choice 3700, Hager 4501 – Rim, Hager 4501 – SVR, Intl Door Closers 8510/8710, Intl Door Closers 8530/8730, Intl Door Closers 8550/8750, Intl Door Closers 8610/8810, Intl Door Closers 8620/8820, Intl Door Closers 8630/8830, Intl Door Closers 8650/8850, K2 QED111, K2 QED114, K2 QED124, PHI 2101, PHI 2201, PHI 2801, PHI 5100, PHI 5200, SDC N6100, SDC N6200, SDC N6800, SDC S6100, SDC S6200, SDC S6300, SDC S6800, Town Steel ED1100, Von Duprin 22, Von Duprin 2227, Von Duprin 33A/35A, Von Duprin 98/99, Von Duprin 9827/9927, Von Duprin 9875/9975, Von Duprin 9877/9977, Yale 7110, Yale 7200

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Customer Questions & Answers

  1. Q Will this latch fit First Choice Model 3690? answer now
    Asked by Marvin J. on January 30, 2019 10:07 AM

    While these will fit the First Choice 3600 series and they do work with other vertical rod systems the 3690 has not specifically been tested. 

  2. Q Does this kit come complete with wired door hinge? answer now
    Asked by Zeke Espinoza on October 18, 2016 4:43 PM

    It does not however, you can purchase the items needed. Either the SDC PTH-4Q hinge or you can use the SDC PT-3V transfer loop. 

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