LT Series
Key vent button
SLT 42-U-SD
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For manually opening and closing a ventilation group in conjunction with D+H SHEV or ventilation control panels
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Function: Ventilation OPEN / CLOSED via key operated changeover contact
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With integrated LED readout OPEN
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For installing in deep 55 mm flush‑mounted sockets (not included)
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Profile semi‑cylinder not included in scope of supply