The FR-ML350 Fire Rated Electric Release Lock is a high-security fail-safe locking solution designed for use with access control systems, emergency door systems, fire doors, and door entry applications. Suitable for commercial, industrial, educational, healthcare, residential, and public sector environments, it provides reliable door security whilst supporting fire-rated door and access control requirements.
Manufactured from durable stainless steel with a narrow-profile design, the FR-ML350 offers a holding force of up to 1500lbs whilst remaining capable of operating under side loads of up to 500lbs. Its compact construction makes it particularly suitable for installations where space is limited but high holding force and dependable operation are required.
Designed specifically for fire-rated door applications, the FR-ML350 has been fire tested to BS EN 1634-1, holds a 1-hour UK fire certificate, and is suitable for installation on compatible FD30 and FD60 fire doors. The monitored output allows integration with access control and door monitoring systems for enhanced security and status reporting.
Available Models
- FR-ML350 – Fire Rated Electric Release Lock
- ML350-44MM-KEEPER - ML350 44mm Lock Keeper
- ML350-54MM-KEEPER - ML350 54mm Lock Keeper
Key Features
- Fire rated electric release lock
- Fail-safe operation (power to lock)
- Holding force up to 1500lbs
- Operating Voltage 12VDC-24VDC
- Side load capability up to 500lbs
- Monitored lock status output
- Stainless steel construction
- Narrow-profile design
- Fire tested to BS EN 1634-1
- 1 Hour UK Fire Certificate
- Suitable for Compatible FD30 and FD60 Fire Doors
- Suitable for access control and emergency door systems
- Compact design
Typical Applications
- Fire doors
- Access control systems
- Emergency door systems
- Commercial buildings
- Educational facilities
- Healthcare environments
- Public buildings
- Internal security doors
- Staff-only areas
- Door entry systems
Compatibility and Accessories
The FR-ML350 is designed to integrate with a wide range of door security and life safety equipment.
This electric release is commonly used with access control systems, door entry intercoms, keypads, proximity readers, press to exit buttons, timers, relays and power supplies.
When building a complete system, please check the release type, fail-safe or fail-secure operation, voltage, door type, lock case compatibility and installation requirements before ordering.
- 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
Technical Specification
- Product Type: Fire Rated Electric Release Lock
- Operating Voltage: 12VDC - 24VDC
- Operation: Fail-Safe (Power to Lock)
- Holding Force: Up to 1500lbs
- Side Load Capacity: Up to 500lbs
- Monitoring: Monitored
- Housing Material: Stainless steel
- Fire Rating: BS EN 1634-1 Tested
- Certification: 1-Hour UK Fire Certificate
- Suitable Door Types: Compatible FD30 and FD60 fire doors
- Dimensions: 200mm x 25mm x 40mm (H x W x D)
The FR-ML350 Fire Rated Electric Release Lock provides a compact and reliable locking solution for fire-rated door applications. Featuring fail-safe operation, monitored status output, BS EN 1634-1 fire testing, and a holding force of up to 1500lbs, it is ideal for installations requiring secure access control on compatible fire-rated doors.
Frequently Asked Questions
What is the FR-ML350 used for?
The FR-ML350 is a fire-rated electric release lock designed to secure doors within access control, emergency exit, and door entry systems.
What holding force does the lock provide?
The FR-ML350 provides a holding force of up to 1500lbs.
What does fail-safe operation mean?
Fail-safe operation means the lock requires power to remain locked. If power is removed, the lock automatically releases, allowing safe egress.
Is the lock monitored?
Yes. The FR-ML350 includes a lock status monitoring output that can be connected to compatible access control and door monitoring systems.
Has the lock been fire tested?
Yes. The FR-ML350 has been fire tested to BS EN 1634-1 and holds a 1-hour UK fire certificate.
Is the FR-ML350 suitable for fire doors?
Yes. The FR-ML350 is suitable for installation on compatible FD30 and FD60 fire-rated doors, subject to the relevant certification and installation requirements.
Can the lock operate under side load?
Yes. The FR-ML350 is capable of operating under side loads of up to 500lbs.
What operating voltage does the lock require?
The FR-ML350 operates from a 12VDC - 24VDC power supply.
Can the lock be used with access control systems?
Yes. The lock is designed for use with access control systems, door entry systems, emergency door systems, and fire alarm interfaces.