Key vent button


Ideal for flush mounting: Our SLT 42U-SD has the same functions as the SLT 42U key vent button and features an additional signalling LED.
Product NamePriceQty

Performance features

  • For manually opening and closing a ventilation group in conjunction with D+H SHEV or ventilation control panels
  • Function: Ventilation OPEN / CLOSED via key operated changeover contact
  • With integrated LED readout OPEN
  • For installing in deep 55 mm flush‑mounted sockets (not included)
  • Profile semi‑cylinder not included in scope of supply

Technical Data

Input voltage DC 24 V DC
Type of protection IP 20
Housing Plastic
Colour White
W x H 80 x 80 mm
Weight 0.15 kg


TypeArt. No
SLT 42-U-SD30.400.50

Approvals / Certificates


SLT 42U-SD - Key-operated vent switch (26.06KB)

LT 84, SLT 42 - Vent buttons (106.89KB)

SLT 42U-SD - Key-operated vent switch 24V (683B)

LT 84 / LS 84 / SLT 42 - Ventilation button (807.51KB)
LT 84 / LS 84 / SLT 42 - Ventilation button (858.24KB)


D+H service and sales partners

The expansive D+H service and sales partner network offers property-based planning and consulting, proper installation, careful maintenance and reliable supply with spare parts.

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