ELR Kits

ELR kits deliver enterprise-grade access control without the costly downtime of full hardware replacement. These retrofit solutions from SDC, Von Duprin, and SARGENT seamlessly integrate your existing exit devices with modern security systems, transforming your current investment into smart, motor-driven access points at a fraction of replacement costs.

Complete Electrical Latch Retraction Systems for Commercial Applications

Motor-driven exit device modifications represent the most efficient way to integrate mechanical hardware with modern access control infrastructure. Our electrical latch retraction collection serves commercial buildings requiring controlled egress while maintaining code compliance for fire safety and emergency exit requirements.

Each unit features microcontroller-based relay boards with multiple logic inputs handling fire signals, REX activation, and door position monitoring. The integrated voltage regulation accommodates both 12V and 24V DC applications, while auto-calibration routines optimize performance for different exit device configurations.

If you’re upgrading a single opening rather than a multi-door network, a pre-configured single-door access control kit can power the ELR module and reader hardware from one compact panel.

Professional-Grade Hardware Solutions

SDC Series Components

Security Door Controls manufactures the 1RIO product line, offering versatile retrofit capability across multiple door types. These modules include specialized versions for aluminum storefront, hollow-metal, and wood applications. The 1RIO-AJAX provides general compatibility, while manufacturer-specific models like 1RIO/PAX-EM target particular exit device series.

Pairing the latch-retraction wiring with dedicated request-to-exit buttons lets staff trigger a quick release without tapping the access system, perfect for high-traffic vestibules.

Manufacturer Compatibility Range

Your facility can accommodate diverse exit device brands through our comprehensive selection:

  • Von Duprin QEL series modifications (1143-17 EO-QEL)
  • SARGENT 80 series integration (52-431 power board)
  • Arrow 1000/3000 series retrofit capability
  • Corbin/Russwin ED6 applications
  • Dorma 9300 series with extended bar lengths
  • Ives 20/30 series compatibility

For touch-free egress, tie the ELR input into ceiling-mounted or door-frame request-to-exit sensors so the bar retracts automatically as an occupant approaches.

Technical Specifications and Compliance

Advanced Control Features

Pluggable terminal blocks simplify field connections, while pre-crimped harnesses reduce installation complexity. LED diagnostic indicators provide real-time system status monitoring, and surge suppression protects against electrical fluctuations. UL listed components ensure adherence to NFPA 101 egress standards and ANSI/BHMA A156.3 requirements.

Electronic Integration Capabilities

The latch retraction mechanism activates through access control signals, allowing remote operation without compromising mechanical egress function. Continuous-duty operation supports high-traffic environments, while the 1 amp power consumption maintains efficient energy usage. Fire rated assemblies preserve door assembly integrity during emergency situations.

Frequently Asked Questions

Can ELR kits work with existing exit devices without replacing the entire assembly?

Yes, these retrofit modules convert mechanical exit devices to motor-driven operation while preserving the original hardware and fire safety compliance.

Which exit device manufacturers are compatible with your ELR kit selection?

Our collection supports SDC, Von Duprin, SARGENT, Arrow, Corbin/Russwin, Dorma, Ives, and Precision exit device series with manufacturer-specific retrofit solutions.

Do electrical latch retraction systems maintain emergency egress function during power failures?

Absolutely. The mechanical egress operation remains fully functional during power loss, ensuring code compliance and occupant safety in emergency situations.

What voltage requirements do ELR kits need for proper operation?

Most units feature selectable 12 V or 24 V DC operation with on-board voltage regulation, accommodating standard access control system power supplies.

Can these systems integrate with fire alarm panels and access control hardware?

Yes, multiple logic inputs handle fire signals, REX activation, and door position monitoring for complete integration with building safety systems.

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