Firefighter's Extract Override Switch (CAS-R | FEOS)

Product features and details.
Product Overview

Firefighter’s Extract Override Switch (CAS-R | FEOS) allows the Fire & Rescue Service (FRS) to take control of Variable Speed Drives (VSD) controlling the Mechanical Smoke Ventilation System (MSVS) to help maintain common escape routes free of smoke and heat in Fire Fighting Mode.

They are designed to operate with the Sertus Addressable Control System (CAS-R) and give clear instruction of FIREFIGHTER USE ONLY and BOOST, AUTO, OFF mode.

Operation is by lifting the polycarbonate cover and the use of the key switch to the required position.

The central AUTO mode allows the MSVS to run automatically during Means of Escape Mode following a fire trigger, BOOST increases the extract speed by controlling the VSD in the Fan Control Panel and OFF switches the extract fan off whilst keeping the system in alarm.

The switch may be installed on any level adjacent to the zone it commands to allow local override for the FRS. All switch commands are visible at, and can be overridden by the Sertus Graphical User Interface (GUI).

Key Features
  • Designed to BS ISO 21927-3 - Manual Control Point Type 2
  • Clear indication of FIRE FIGHTER USE ONLY
  • 3-Position switch for manual override of BOOST/AUTO/OFF
  • Orange ABS plastic housing with polycarbonate hinged cover
  • Supplied with two sets of special keys
Technical Data

Voltage: Max 30V DC

Output Current: Max 2A

Dimensions: 89 W x 93 H x 60 D mm

Protection Class: IP24D

For all information regarding this product please download its datasheet.

Installation instructions.

How to install the CAS-R | FEOS, by the people who make it.
Mount switch
Complete connections
Complete programming
Provides firefighter control over equipment.
Should firefighters need to take control of the smoke ventilation system, this switch will allow them to control the extract unit.
Related Products
Roof Single Leaf - Residential (RSL-R)
Roof Mechanical Pod - Residential | Environmental (RMP-R | E)
Shaft Louvre Damper - Residential (SLD-R)
Addressable Control Panel (CAS-R | ACP)
Get in touch.
Want to learn more about our products? 😊
Talk to us