ML350 / FR-ML350 Electric Release Lock
The ML350 and FR-ML350 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 for high-security door applications.
The locks utilise an electromechanical locking mechanism that provides a holding force of up to 1,500lbs (680kg) whilst continuing to operate 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 ML350 range is ideal for installations where space is limited. The FR-ML350 model has been independently fire tested to BS EN 1634-1 and is suitable for compatible FD30 and FD60 fire-rated doors, making it suitable for fire door access control applications when correctly installed.
Available Models
- ML350 - Electric Release Lock
- FR-ML350 - Fire Rated Electric Release Lock
- ML350-44MM-KEEPER - 44mm Stainless Steel Keeper Plate
- ML350-54MM-KEEPER - 54mm Stainless Steel Keeper Plate
Key Features
- Electric release lock
- Compact narrow profile
- Operating voltage 12VDC or 24VDC
- Fail-safe operation
- Holding force up to 1,500lbs (680kg)
- Operates under 500lbs (227kg) side load
- Lock status monitoring output
- Stainless steel construction
- Fire tested to BS EN 1634-1 (FR-ML350 Oonly)
- Suitable for FD30 & FD60 fire doors (FR-ML350 only)
- Suitable for access control systems
- Suitable for new installations and retrofits
Typical Applications
- Access Control Systems
- Fire Doors
- Commercial Buildings
- Healthcare Facilities
- Educational Buildings
- Industrial Premises
- Apartment Buildings
- Office Entrances
- Restricted Access Areas
- High Security Doors
Compatibility
The ML350 and FR-ML350 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
- 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: Monitored
- Construction: Stainless steel
- Fire Door Suitability: Compatible FD30 and FD60 fire doors (FR-ML350 only)
- Suitable Fire Doors: FD30 & FD60 (FR-ML350 only)
- Dimensions: 200mm x 25mm x 40mm (H x W x D)
ML350 / FR-ML350 Product Accessories
The ML350 and FR-ML350 Electric Release Locks provide a compact and reliable locking solution for access control installations requiring high holding force and dependable fail-safe operation. With monitored lock status, stainless steel construction, and the the FR-ML350 offering BS EN 1634-1 fire testing for compatible FD30 and FD60 fire doors, they are ideal for demanding commercial and life safety applications.
Frequently Asked Questions
What is the difference between the ML350 and FR-ML350?
The FR-ML350 has been fire tested to BS EN 1634-1 and is approved for installation on FD30 and FD60 fire-rated doors. The standard ML350 does not include this fire certification.
What holding force does the ML350 provide?
The lock provides a holding force of up to 1,500lbs (680kg).
What does side load mean?
Side load refers to the pressure applied to the door before release. The ML350 can reliably operate under side loads of up to 500lbs (227kg).
Is the lock monitored?
Yes. Both models include monitored lock status output for integration with compatible access control systems.
Is the FR-ML350 suitable for fire doors?
Yes. The FR-ML350 has been fire tested to BS EN 1634-1 and is suitable for compatible FD30 and FD60 fire-rated doors, subject to the relevant certification and installation requirements.
Is the lock fail-safe?
Yes. The ML350 range operates as a fail-safe lock, meaning it unlocks automatically when power is removed.
Can the ML350 be used with access control systems?
Yes. The ML350 range is compatible with access control systems, door entry systems, intercoms, keypads, proximity readers, and fire alarm interfaces.