EV-HE077 Firemans Override Switch

£71.00 / £85.20 incl. VAT

The EV-HE077 override switch provides a firemans’ override facility and can be used for system testing. Each switch comes complete with a plastic enclosure, break glass pane, 3 LED indicators for “OK”, “Fault” and “Alarm” plus audible buzzer.

Available for Next Day Delivery

SKU: EV-HE077 Category: Tags: , , Brand:

Frequently Bought Together

EV-HE077 Firemans Override Switch + Smoke Detector + EV-301Smoke Ventilation AOV Control Pane Control Panel
Price for all three: £479.00

The EV-HE077 firemans override switch provides local override control of the smoke vent and head of stair vent with a visual and audible indication and is UKCA & CE Marked to prEN 12101-9 BS ISO 21927-9.

Two buttons provide override open, close and reset functions and three coloured LEDs with an audible buzzer indicate system health, fault and alarm status.

The override switch is located in the stairwell adjacent to the lobby firefighters’ entrance and is wired directly to the interface panel. The hinged door is secured by a common key lock to prevent tampering and has a frangible break-glass element for emergency use.

This fireman’s override switch is compatible with the following control panels:

  • EV-301
  • EV-601
  • SP200 (ST43148)
  • SP300 (ST43160)
  • SP600 (ST43161)

Only available in Orange (EN 12101).

If you require an alternative colour, spare housing for the HE range is available in a variety of colours.

Under the Construction Products Regulations (CPR) it is a legal requirement to use only certified products for smoke ventilation. It is the responsibility of the installer to ensure installations meet the relevant standards. For more information see SCS Group’s Technical Bulletin.

Dimensions 125 × 125 × 35 mm



BS ISO 21927-9, prEN 12101-9


3 Wire to interface panel


ABS plastic RAL 2011 orange

IP Rating



24VDC, 32mA


H:125mm x W:125mm x D:35mm

Product Weight


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