Command Access ML45D‑24V‑REX – Electrified Mortise Lock, Best 45H Retrofit, Storeroom Function, Fail Secure, 24V with REX

Product Description

Overview

The Command Access ML45D‑24V‑REX is a 24V electrified mortise lock chassis designed to retrofit Best 45H series locks. With storeroom functionality, fail secure operation, and integrated Request to Exit (REX), this unit is built for high-use commercial environments requiring reliable security and access control integration.

Specifications

• Product Type: Electrified Mortise Lock Chassis

• Series: ML45D – Retrofit for Best 45H

• Electrified By: Command Access Technologies

• Model: ML45D‑24V

• Voltage: 24 VDC

• Function: Storeroom (EU – electronically unlocked)

• Operation: Fail Secure – outside lever locked when unpowered

• REX Function: Integrated Request to Exit for egress monitoring

• Power Requirements:

  • Amperage: 350 mA

  • Solenoid resistance: 69 Ω

  • Power consumption: 8 watts

• Power Compatibility: Accepts 24VAC/DC (±10%) via plug-in bridge rectifier

• Handing: Field reversible (EL/EU configurable)

• Solenoid: Continuous duty rated

• Warranty: 3-year no-hassle warranty from Command Access

Features & Benefits

• Command Access Electrification: Retrofit solution for Best 45H series locks

• Storeroom Functionality:

  • Outside lever electronically unlocked (EU)

  • Key retracts latchbolt from outside

  • Inside lever always free for emergency egress

• Fail Secure Design: Outside lever remains locked during power loss

• REX Capability: Enables exit signal integration for alarm systems

• Grade 1 Durability: Built to handle high-traffic usage in secure environments

• Flexible Setup: EL/EU function and handing adjustable in the field

• Low Power Draw: Energy-efficient solenoid supports long wire runs

Common Applications

• Stairwell doors

• Entry vestibules

• IT/server rooms

• Public buildings and universities

• Retrofit projects using Best 45H hardware