Smoke and heat extraction system control units

THZ N4 * SHEV panel in compact housing for small smoke and heat extraction systems

THZ Smoke and heat extraction system complete solution for stairwells
  • Compact and attractive design with a plastic housing
  • Highest flexibility due to extensive parameter setting options
  • Safety and reliability confirmed by VdS recognition and TÜV test
  • Interconnection of several staircase control units via potential-free contacts
  • Quick and easy commissioning with the ST 220 service terminal
  • Quick and easy installation
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SHEV panel in compact housing for small smoke and heat extraction systems

Application Areas

  • Smoke extraction in staircases
  • For smaller smoke and heat extraction solutions with one fire section
  • Connection options for smoke detector, FT 4 push button, fire alarm system contact, vent switch and weather sensors
  • For smoke and heat extraction system drives with a total power consumption of 4.5 A
  • Control of electromotive 24 V drives for smoke and heat extraction in the event of a fire
  • Control of a controlled natural ventilation
  • Suitable for new buildings and retro-fitting

Technical data

Dimensions 193 x 285 x 89 mm
Width 193 mm
Height 285 mm
Depth 89 mm
Material Plastic
Colour white RAL 9016
IP rating IP30
Temperature range -5°C...+40°C
Operating voltage 230 V AC
Power consumption (max.) 120 W
Connection cross-section / mains 1.5 mm²
Output voltage 24 V DC +/-15%
Residual ripple 2 %
Output current (max.) 4.5 A
Duty rating with maximum output current 30 %
Motor cable wire size 4 mm²
Battery capacity 2.3 Ah
Alarm groups 1 x
Vent groups 1 x
Networking of several control units Forwarding of alarm and reset signals for linking up to 10 control units
Status contacts 3 status contacts for which parameters can be set
Parameter setting of control units Service buttons and 5 LEDs or ST220
Tested in accordance with EN 12101-10
Approvals VdS


GEZE France +33-1-60-62-60-70 GEZE Service +33-800-8000-18