Best For: Offices, retail stores, apartment common areas and commercial entrances requiring a slimline monitored magnetic door lock
FSH FEM4300M Slimline Magnetic Door Lock – Single, Monitored, 280kg
Secure compatible access-controlled doors with the slimline FSH FEM4300M Magnetic Door Lock.
Designed for single-door commercial applications, this monitored electromagnetic lock provides up to 280kg holding strength, field-selectable 12V or 24V DC operation and integrated lock and door status monitoring. Its slim anodised aluminium housing provides a neat finish for professional access control installations.
The FEM4300M operates as a fail-safe magnetic lock. It remains locked while power is applied and releases when power is removed, subject to correct access control and emergency-release configuration.
Key Features of the FSH FEM4300M
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Up to 280kg Holding Strength – Reliable electromagnetic locking for compatible single doors
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Monitored Operation – Includes Lock Status Sensor and Door Status Sensor outputs
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Red/Green Status LED – Provides a visible indication of the lock condition
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Fail-Safe Operation – Locks while powered and releases when power is removed
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12V or 24V DC – Field-selectable dual-voltage operation
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Slimline Single-Door Design – Suitable for compatible commercial door frames
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Anodised Aluminium Finish – Provides a clean, professional appearance
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No Residual Magnetism – Helps the door release cleanly when power is removed
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Built-In MOV Surge Protection – Helps protect connected access control equipment from electrical surges
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Surface-Mount Installation – Compatible mounting brackets are available separately
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Up to Two-Hour Fire Rating – In accordance with AS 1905.1:2015, subject to complete door assembly approval
- Five-Year Mechanical Manufacturer Warranty
Door and Lock Status Monitoring
The FEM4300M provides two monitoring outputs for compatible access control and security equipment:
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Lock Status Sensor (LSS): Monitors whether the armature plate is correctly aligned and securely held against the magnetic lock
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Door Status Sensor (DSS): Monitors whether the door is open or closed
These outputs allow compatible systems to receive feedback about both the door position and magnetic lock status. A red/green status LED also provides a quick visual indication at the door.
Fail-Safe Magnetic Lock Operation
The FEM4300M is a fail-safe or Power to Lock electromagnetic lock. Electrical power creates the magnetic holding force that secures the armature plate against the lock body.
When power is removed, the magnetic field is released and the door can open. The access control system, emergency door release, fire-system interface and backup power arrangements must be designed to meet the requirements of the site.
No Residual Magnetism
The FEM4300 Series is designed to avoid residual magnetism after power is removed. This helps the armature plate release cleanly, reducing door sticking and supporting smoother operation.
Technical Specifications
| Brand |
FSH |
| Model |
FEM4300M / FSHFEM4300M |
| Product type |
Single monitored electromagnetic door lock |
| Operating function |
Fail safe / Power to Lock |
| Holding strength |
Up to 280kg |
| Input voltage |
12V or 24V DC, field selectable |
| Current draw |
500mA at 12V DC; 250mA at 24V DC |
| Monitoring |
Lock Status Sensor and Door Status Sensor |
| Status indicator |
Red/green LED |
| Mounting |
Surface mount |
| Magnet dimensions |
268mm long × 48mm wide × 25mm deep |
| Armature plate dimensions |
185mm long × 38mm wide × 12mm deep |
| Finish |
Anodised aluminium |
| Fire rating |
Up to two hours in accordance with AS 1905.1:2015, subject to door assembly approval |
| Approvals |
CE and RCM approved |
| Warranty |
Five-year mechanical manufacturer warranty |
Ideal Applications
- Commercial building entrances
- Office and reception doors
- Retail stores and controlled staff areas
- Apartment and multi-residential common areas
- Internal access-controlled doors
- Card-reader and keypad access systems
- Intercom-controlled door release
- Doors requiring lock and position monitoring
Mounting Accessories and Compatibility
Compatible L, Z and adjustable mounting brackets are available separately for different door and frame configurations.
Glass-door installations may require a compatible U bracket, armature plate or mounting accessory. Confirm the door construction, opening direction, frame design and mounting requirements before ordering.
Fire-Rated Door Applications
The FEM4300 Series may be suitable for door assemblies requiring a fire rating of up to two hours in accordance with AS 1905.1:2015.
Fire-rating suitability depends on the complete door, frame, mounting hardware and installation method. Confirm compatibility with Allegion and the fire-door manufacturer before installation.
Installation and Compatibility
The FEM4300M must be matched with the door, frame, armature plate, mounting brackets, access controller and power supply. Correct alignment between the magnetic lock and armature plate is essential for achieving the specified holding strength.
This model is not listed as weather resistant. A suitable weather-rated magnetic lock should be selected for external doors exposed to rain or other environmental conditions.
Professional installation by a suitably qualified security or access control technician is recommended. Emergency release, fire-system integration and applicable egress requirements must also be confirmed before installation.
Why Buy FSH Magnetic Locks from CTC Communications?
- Security industry specialists since 1993
- Australia-wide product supply
- Professional access control advice
- Help matching locks, brackets, controllers and power supplies
- Residential and commercial security experience
Shop CTC Communications for quality FSH electronic locks, magnetic door locks and access control accessories.
Not sure which FSH lock is right for your door?
Compare electric strikes, magnetic locks, monitored models, holding strengths and mounting options in our
FSH Electric Door Locks Buying Guide.
