• Field-install Command Access MLRK1-CAL77 motorized latch retraction kit for Cal-Royal 7700 exit devices; PTS adjustment, MM4S smart module, optional REX, 8′ harness.
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Command Access

Command Access MLRK1-CAL77 Motorized Latch Retraction Kit — For Cal-Royal 7700 Series (Field Install, UL, 3-Year Warranty)

Command Access MLRK1-CAL77 Motorized Latch Retraction Kit — For Cal-Royal 7700 Series (Field Install, UL, 3-Year Warranty)

$495.00 USD
$495.00 USD
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Upgrade Cal-Royal 7700 Exit Devices to Motor-Driven Latch Retraction

The Command Access MLRK1-CAL77 is a field-install motorized latch retraction kit that converts Cal-Royal 7700 Series exit devices from mechanical to electrified pullback while maintaining UL listings. Installation is clean—the only hole to drill is the wire raceway. Fine-tune in seconds with PTS (Push-to-Set), and leverage the MM4S Smart Module for onboard diagnostics and selectable power profiles. UL Listed and backed by a 3-year “no hassle” warranty.

Why installers choose MLRK1-CAL77

  • Drop-in field retrofit — minimal modification; quick raceway drill only.
  • Fast, quiet, smooth & strong motor performance for reliable pullback.
  • PTS electronic adjustment — 5-second, one-touch fine tuning (≈ 1/4").
  • MM4S Smart Module with onboard diagnostics & audible feedback.
  • Three energy modes: energy-conscious, standard, and High-Torque for tough doors.
  • Long wire runs up to 300′ with 18 AWG; centralize the power supply near the access panel.
  • Electric dogging rated for continuous duty; auto re-engages if the pushpad is pulled.
  • 8′ quick-connect cable for easy connection to the power supply lead.
  • Built in REX  Request to Exit Switch Included

Compatibility

Works with all Cal-Royal 7700 Series exit devices. (Select 77/PD26 equivalents may apply—verify per device and AHJ.)

Always verify exact model/handing, listings, and AHJ requirements for your project.

Specifications

Voltage Range 24–28 VDC (over-voltage protection: unit shuts down > 28 VDC)
Current (Standard) Peak ≈ 900 mA; Hold ≈ 190 mA
Current (High-Torque) Peak ≈ 2.0 A; Hold ≈ 250 mA
Control Module MM4S Smart Module with onboard diagnostics & audible feedback
Energy Modes Energy-conscious / Standard / High-Torque (field switchable)
PTS Adjustment ≈ 1/4″ (5-second electronic adjustment)
Wire Run Up to 300′ with 18 AWG (two conductors)
Cutdown Details 36″ – cut ~3.75″; 48″ – consult installation guide (varies by rail)
Request-to-Exit Built-in REX kit
Duty Rating Electric dogging, continuous duty; auto re-engage if pushpad is pulled
Listings UL Listed
Warranty 3-Year “No Hassle” Warranty

Installer Notes

  • Confirm device series/handing and rail cut length before energizing.
  • Use a regulated 24 VDC supply sized for inrush; verify 24–28 VDC at the rail under load.
  • Route cabling to avoid pinch points in the rail/hinge area; secure the raceway and strain relief.
  • If adding REX, wire to your access control panel per required input type.

What’s Included

MLRK1-CAL77 motor kit with MM4S module, 8′ quick-connect harness, hardware, and installation instructions with built-in REX.

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