Magnetic Door Holder (CAS-R | MDH)

Product features and details.
Product Overview

The Magnetic Door Holder (CAS-R | MDH) enables fire doors to be held open by the Sertus Addressable Control System (CAS-R) for ease of access and as part of the Environmental Ventilation strategy. On receipt of a fire signal the 24V supply is immediately removed allowing the fire doors to close with the self-closing door device to provide the designed fire compartmentation.

The MDH is available as a floor mounted unit in a white ABS casing with a steel keeper plate to fit to the fire door. It has a holding force of 200N and incorporates a manual override release switch.

It is supplied with a Metal Oxide Varistor (MOV) surge protection device which should be installed within the MDH as shown on the schematic to protect the control system from power surges.

Key Features
  • 24V power supply
  • Manual override release switch
  • Floor mounted – wall mounted available as a special option
  • Certified to BS EN 1155
Size Guide
Width (mm)Height (mm)Depth (mm)
For all information regarding this product please download its datasheet.

Installation instructions.

How to install the CAS-R MDH, by the people who make it.
Mount wall unit
Mount door unit
Complete connections
Related Products
Networked Controls System - Residential (CNS-R)
Graphical User Interface (CAS-R | GUI)
Addressable Control Panel (CAS-R | ACP)
Thermostat (CNS-R | T)
Roof Ventilation Collar - Residential (RVC-R)
Get in touch.
Want to learn more about our products? 😊
Talk to us