Best For: Double commercial doors, office entrances, retail premises and controlled access points requiring monitored fail-safe magnetic locking with door and lock status feedback.
FSH FEM4300DM Slimline Double Magnetic Door Lock – Monitored LSS/DSS, 280kg, 12/24V DC
The FSH FEM4300DM is a slimline, monitored double electromagnetic door lock designed for access-controlled pairs of doors. It incorporates two magnetic locks, with each magnet providing a holding strength of up to 280kg.
Designed for fail-safe, Power To Lock operation, the FEM4300DM supports field-selectable 12V or 24V DC input. Integrated Lock Status Sensors, Door Status Sensors and red/green LED indication provide valuable feedback to compatible access control and building management systems.
The surface-mount design, slimline aluminium housing and comprehensive monitoring functions make the FEM4300DM suitable for professional commercial installations where door and lock status must be monitored.
Key Features of the FSH FEM4300DM
-
Monitored double magnetic lock for pairs of access-controlled doors
- Up to 280kg holding strength per magnetic lock
- Lock Status Sensor (LSS)
- Door Status Sensor (DSS)
- Red and green lock status LED indication
- Slimline surface-mount design
- Field-selectable 12V or 24V DC operation
- Fail-safe, Power To Lock operation
- Built-in MOV surge protection
- No residual magnetism when power is removed
- Satin anodised aluminium housing
- Two armature plates supplied
- Fire tested for up to 2 hours, subject to the approved doorset
- Five-year manufacturer warranty
Lock and Door Status Monitoring
The FEM4300DM provides two important monitoring functions for compatible access control systems:
-
LSS – Lock Status Sensor: provides feedback on whether the magnetic lock has achieved a secure locked condition.
-
DSS – Door Status Sensor: provides feedback on whether the corresponding door leaf is open or closed.
These monitoring outputs allow the access control system to identify conditions such as a door being held open, failing to close correctly or not achieving a secure lock status.
Red and Green LED Status Indication
Integrated red and green LED indication provides an immediate visual reference for the lock status. This helps installers, security personnel and building managers quickly identify whether the magnetic locks are secure or released.
The LEDs complement the LSS and DSS outputs by providing convenient status information at the doorway.
Designed for Double-Door Entrances
The FEM4300DM combines two electromagnetic locks in a single double-door housing. Each magnetic lock operates with its own armature plate and monitoring functions, allowing both door leaves to be secured and monitored as part of the same access control system.
Its slimline construction is suitable for commercial entrances where space, appearance and reliable locking are important considerations.
Fail-Safe Magnetic Locking
The FSH FEM4300DM operates in fail-safe or Power To Lock mode. Electrical power is applied to secure the doors, and the magnetic locks release when power is removed.
This allows the lock to be integrated with compatible access control systems, emergency exit devices and fire-alarm interfaces. Emergency release and egress requirements must be considered as part of the complete installation.
Dual-Voltage 12/24V DC Operation
Field-selectable 12V or 24V DC operation allows the FEM4300DM to be used with a wide range of access control panels, intercom systems, credential readers and professional power supplies.
Each magnetic lock draws approximately 500mA at 12V DC or 250mA at 24V DC. For the complete double lock, allow approximately 1A at 12V DC or 500mA at 24V DC.
No Residual Magnetism
The FEM4300DM is designed without residual magnetism after power is removed. This helps both door leaves release cleanly following an authorised access request, emergency release or interruption to the power supply.
Technical Specifications
| Brand |
FSH |
| Model |
FEM4300DM / FSHFEM4300DM |
| Series |
FEM4300 Series |
| Product Type |
Slimline monitored double electromagnetic lock |
| Door Configuration |
Double door |
| Holding Strength |
Up to 280kg per magnetic lock |
| Operation |
Fail safe / Power To Lock |
| Input Voltage |
12V or 24V DC, field selectable |
| Total Current Draw |
Approximately 1A at 12V DC or 500mA at 24V DC |
| Monitoring |
Lock Status Sensor and Door Status Sensor |
| Status Indication |
Red and green LED |
| Mounting |
Surface mount |
| Magnet Dimensions |
477mm x 48mm x 25mm |
| Armature Plate Dimensions |
185mm x 38mm x 12mm – two supplied |
| Housing Finish |
Satin anodised aluminium |
| Surge Protection |
Built-in MOV protection |
| Fire Rating |
Up to 2 hours in accordance with AS 1905.1:2015, subject to the approved doorset |
| Approvals |
CE and RCM approved |
| Warranty |
Five-year manufacturer warranty |
Ideal Applications
- Double commercial entry doors
- Office foyers and administration buildings
- Retail stores and shopping centres
- Controlled staff entrances
- Apartment and shared-building entrances
- Education and healthcare facilities
- Doors requiring monitored access control
Fire-Rated Door Applications
The FEM4300DM has been tested for use on compatible fire-door assemblies for up to two hours in accordance with AS 1905.1:2015. Approval depends on the complete doorset, mounting method and fire-door manufacturer requirements.
Suitability must be confirmed before installing the lock on a fire-rated door.
Installation Note
The FSH FEM4300DM should be installed by a qualified security or access control technician. Door alignment, mounting brackets, power supply capacity, monitoring connections, cable protection, emergency release devices and fire-alarm integration must be confirmed during system design.
An appropriate double L&Z bracket may be required where the door and frame configuration does not support direct surface mounting.
Why Choose the FSH FEM4300DM?
- Purpose-built locking for double-door entrances
- Up to 280kg holding strength per door leaf
- LSS and DSS monitoring for improved system feedback
- Red and green visual status indication
- Slimline design for professional commercial installations
- Flexible 12V or 24V DC operation
- Clean release without residual magnetism
- Five-year manufacturer warranty
Shop CTC Communications for quality FSH electronic locking products, magnetic door locks and access control locking 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
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