Product SKU: WM85
Product Overview
The SECOR WM85 Metal Surface Mount Mini Armoured Reed Switch NC 30mm Gap is a heavy duty surface mount magnetic reed switch designed for compatible alarm, access control and security monitoring applications. It features a zinc alloyed grey case, normally closed SPST reed switch output and a 30mm operating gap, making it suitable for monitored doors, gates, frames, cupboards, cabinets and protected openings where a more durable metal contact is preferred. The included 380mm armoured cable provides added protection against cable damage in higher-risk or exposed installation points. With a maximum resistance of 0.2Ω, 10W maximum rating, 100VDC maximum voltage and 500mA maximum current, the WM85 is a practical option for low-voltage security circuits requiring a compact armoured surface mount contact.
Key Capabilities
Mini Heavy Duty Reed Switch
The WM85 provides a compact heavy duty reed switch option for compatible alarm and access control monitoring circuits.
Zinc Alloyed Case
The metal case provides a more robust housing than standard plastic reed contacts for suitable surface mount installations.
Armoured Cable Protection
The 380mm armoured cable helps protect the wiring path from accidental damage, interference or rougher installation environments.
Normally Closed SPST Output
The NC SPST output suits compatible alarm and access control inputs configured for normally closed open/close monitoring.
30mm Operating Gap
The 30mm gap provides practical mounting tolerance for compatible doors, frames, gates, cabinets and protected openings.
Switch and Magnet Included
Both the switch and magnet use compact 49 x 25 x 15mm dimensions, helping simplify matching and alignment during installation.
Best For
- Heavy Duty Door Monitoring: Suitable for compatible alarm systems needing a stronger surface mount reed switch than standard plastic contacts.
- Gate and Frame Monitoring: Useful where a compact metal contact with armoured cable is preferred for protected openings.
- Access Control Inputs: Practical for door position monitoring on compatible access control systems using NC contact inputs.
- Cabinet and Enclosure Security: Suitable for monitored cupboards, cabinets, lockers or service enclosures requiring a robust contact.
- Retrofit Security Work: A practical replacement or upgrade option where surface mounting and cable protection are required.
Why Choose the WM85
Choose the SECOR WM85 when the installation needs a compact metal surface mount reed switch with armoured cable protection. Its zinc alloyed case, normally closed SPST output and 30mm gap make it suitable for compatible alarm and access control circuits where a stronger contact is preferred over a standard plastic surface mount reed switch. The 380mm armoured cable helps protect the wiring connection in applications where the contact may be exposed to handling, movement or higher-risk mounting conditions. This model, supplied by Security Wholesalers, is a practical option for installers needing a mini heavy duty reed switch for reliable low-voltage open/close monitoring.
Buyer Decision Tips
Buyer Tip: Confirm the required contact type before ordering. The WM85 uses a normally closed SPST output, so it should match the alarm panel or access control input configuration.
Buyer Tip: Check the available mounting space and cable route before installation. Both the switch and magnet measure 49 x 25 x 15mm, and the armoured cable length is 380mm.
Key Features & Technical Specifications
| Product Type | Mini heavy duty surface mount armoured reed switch. |
| Model | WM85. |
| Brand | SECOR. |
| Case Material | Zinc alloyed. |
| Colour | Grey. |
| Mounting Type | Surface mount. |
| Reed Switch Output Type | SPST, normally closed. |
| Gap | 30mm. |
| Armoured Cable Length | 380mm. |
| Maximum Resistance | 0.2Ω. |
| Maximum Rating | 10W. |
| Maximum Voltage | 100VDC. |
| Maximum Current | 500mA. |
| Switch Dimensions | 49 x 25 x 15mm. |
| Magnet Dimensions | 49 x 25 x 15mm. |
| Typical Use | Door, frame, gate, cabinet, enclosure or protected opening monitoring for compatible alarm and access control systems. |
Ideal Use Cases
Heavy Duty Door Monitoring
Use where a compatible alarm system requires a stronger surface mount reed switch for door open/close detection.
Armoured Cable Installations
Suitable where the cable requires extra protection near the switch body or exposed connection point.
Access-Controlled Doors
Can be used as a door status input for compatible access control systems requiring NC contact monitoring.
Cabinets and Service Enclosures
A practical contact for cupboards, cabinets, lockers and enclosures where a metal reed switch is preferred.
Retrofit Surface Mount Jobs
Useful where recessed contact drilling is not suitable and a compact surface mount contact is required.
Higher-Risk Contact Locations
Suitable for monitored points where a zinc alloyed case and armoured cable offer a more robust contact option.
Choosing the Right Model
- Choose this model if: You need a mini heavy duty metal surface mount reed switch with NC SPST output, 30mm gap and armoured cable.
- Choose a plastic surface mount contact if: The installation does not require a metal housing or armoured cable protection.
- Choose a wider-gap contact if: The door or frame alignment requires more than the listed 30mm gap.
- Choose a recessed reed switch if: The project requires hidden installation inside the door and frame rather than surface mounting.
- Check before installation: Confirm contact type, gap, cable route, voltage, current, circuit rating, mounting position and magnet alignment.
FAQs
- What is the SECOR WM85 used for?
The SECOR WM85 is used as a mini heavy duty surface mount reed switch for compatible alarm and access control systems. It monitors the open or closed state of doors, frames, gates, cabinets or protected openings using a magnetic reed switch and matching magnet. - What makes the WM85 heavy duty?
The WM85 uses a zinc alloyed case and includes a 380mm armoured cable, making it more robust than many standard plastic surface mount reed switches. This can be useful where the contact or cable path may be more exposed to handling or damage. - Is the WM85 normally closed?
Yes. The WM85 uses an SPST normally closed reed switch output. The installer should confirm the alarm panel or access control input is configured for normally closed contact monitoring before connecting the reed switch. - What gap does the WM85 support?
The SECOR WM85 has a listed operating gap of 30mm. Final performance depends on correct switch and magnet alignment, mounting surface, door movement and installation conditions, so the installer should test the contact after fitting. - Can this reed switch be used with access control systems?
Yes. The WM85 can be used as a door status or protected opening input for compatible access control systems where the controller supports NC contact monitoring and the circuit remains within the listed voltage, current and wattage ratings. - What are the electrical ratings?
The WM85 has a maximum resistance of 0.2Ω, maximum rating of 10W, maximum voltage of 100VDC and maximum current of 500mA. The connected circuit should remain within these ratings for safe and reliable operation. - What are the dimensions?
Both the switch and magnet measure 49 x 25 x 15mm, with an armoured cable length of 380mm. Installers should confirm the available mounting area, cable route and clearance before installation, especially on narrow frames or compact enclosures. - What should I check before buying the WM85?
Before buying the WM85, confirm that your system requires an NC SPST surface mount armoured reed switch, the 30mm gap suits the opening, and the circuit ratings are compatible. This model is available through Security Wholesalers for compatible alarm and access control monitoring applications.

















