ML450M and FR-ML450M Electric Release Lock

The ML450M and FR-ML450M Electric Release Locks are compact, high-security locking solutions designed for access control systems, door entry systems, and electronic security installations. Suitable for commercial, industrial, educational, healthcare, residential, and public sector environments, they provide reliable fail-safe locking with monitored status feedback for enhanced system integration.

The locks utilise an electromechanical locking mechanism that provides a holding force of up to 1,500lbs (680kg) whilst allowing operation under side loads of up to 500lbs (227kg). This makes them particularly suitable for doors subject to pressure before release, ensuring dependable unlocking performance under demanding conditions.

Manufactured from durable stainless steel with a slim, narrow profile, the ML450M range is ideal for installations where space is limited. Both models include monitored lock status outputs for integration with access control systems. The FR-ML450M has been fire tested to BS EN 1634-1 and is suitable for installation on FD30 and FD60 fire doors, making it ideal for applications requiring secure locking on compatible fire-rated doors.

Available Models

• ML450M – Monitored Electric Release Lock
• FR-ML450M – Monitored Fire Rated Electric Release Lock

Key Features

• Electric release lock
• Lock status monitoring output
• Operating voltage 12VDC or 24VDC
• Fail-safe operation
• Holding force up to 1,500lbs (680kg)
• Operates under 500lbs (227kg) side load
• Stainless steel construction
• Compact narrow profile
• Fire-rated version available (FR-ML450M)
• Fire tested to BS EN 1634-1 (FR-ML450M)
• Suitable for compatible FD30 and FD60 fire doors
• Suitable for access control systems
• Suitable for new installations and retrofits

Typical Applications

• Access Control Systems
• Fire Doors (FR-ML450M)
• Commercial Buildings
• Healthcare Facilities
• Educational Buildings
• Industrial Premises
• Apartment Buildings
• Office Entrances
• Restricted Access Areas
• High-Security Doors

Compatibility

The ML450M and FR-ML450M Electric Release Locks are designed to integrate with a wide range of access control and door security equipment.

• Access Control Systems
• Door Entry Systems
• Intercom Systems
• Proximity Card Readers
• Keypad Entry Systems
• Press to Exit Buttons
• Emergency Door Release Units
• Power Supplies
• Relays and Timers
• Building Management Systems
• Fire Alarm Systems

Technical Specification

• Product Type: Electric release lock
• Operating Voltage: 12VDC or 24VDC
• Operation: Fail-safe
• Holding Force: Up to 1,500lbs (680kg)
• Side Load: Up to 500lbs (227kg)
• Monitoring: Lock status monitoring output
• Construction: Stainless steel
• Fire Testing: BS EN 1634-1 (FR-ML450M only)
• Suitable Door Types: Compatible FD30 and FD60 fire doors (FR-ML450M only)

ML450M Lock Product Datasheet

FR-ML450M Lock Product Datasheet

The ML450M and FR-ML450M Electric Release Locks provide a compact and reliable locking solution for access control installations requiring monitored lock status and dependable fail-safe operation. Manufactured from stainless steel and capable of operating under side loads of up to 500lbs, they are ideal for demanding commercial and industrial applications. The FR-ML450M additionally provides a fire-tested solution for compatible fire door installations where fire-rated access control locking is required.

Frequently Asked Questions

What is the difference between the ML450M and FR-ML450M?

The FR-ML450M is the fire-rated version of the ML450M and is designed for compatible fire door installations requiring fire-tested access control locking.

What holding force does the ML450M provide?

The lock provides a holding force of up to 1,500lbs (680kg).

What does side load mean?

Side load refers to pressure applied to the door before release. The ML450M can reliably operate under side loads of up to 500lbs (227kg).

Is the lock monitored?

Yes. Both models include a lock status monitoring output for integration with compatible access control systems.

Is the lock fail-safe?

Yes. The ML450M range operates as a fail-safe lock, meaning it unlocks automatically when power is removed.

Has the FR-ML450M lock been fire tested?

Yes. The FR-ML450M has been fire tested to BS EN 1634-1 and is suitable for installation on compatible FD30 and FD60 fire doors, subject to the relevant certification and installation requirements.

Can the ML450M be used with access control systems?

Yes. The ML450M range is compatible with access control systems, door entry systems, intercoms, keypads, proximity readers, and emergency door release devices.