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The SK07-THC-4B is a flush-box KNX controller module that installs behind the switch design of your choice and reads an external HTU21 temperature/humidity element, sold separately. It includes an integrated bus coupler and room temperature controller (RTR).
With the HTU21 element connected, it measures temperature and relative humidity and calculates absolute humidity, dew point and enthalpy. Four binary inputs/outputs are provided. The module is bus powered and configured in ETS with the HLK305 application.
| Article no. | 30530780 |
|---|---|
| KNX bus voltage | KNX 21-32 VDC |
| Power consumption | approx. 240 mW at 24 VDC (bus powered) |
| Auxiliary supply | Not required (bus powered) |
| Measuring | External HTU21 temperature/humidity element (not included); Temperature -25..+80 °C (-13 to 176 °F), res. 0.02 °C (0.04 °F), accuracy ±0.4 °C (±0.72 °F) (5..60 °C (41 to 140 °F)) else ±0.8 °C (±1.4 °F); Humidity 0..100 % rH, res. 0.02 % rH, accuracy ±3 % rH (20..80 %) at +20 °C (68 °F) else ±5 % rH; calculates abs. humidity, dew point, enthalpy |
| Inputs / outputs & connections | 4 binary inputs/outputs; connection for external HTU21 sensor |
| Protection rating | IP20 |
| Dimensions | 50 x 50 x 20 (W x H x D), 55 mm (2.17 in) diagonal |
| Mounting | Behind-the-switch module in standard flush-mounted box, indoor |
| Operating temperature | -25 to +80 °C (-13 to 176 °F) (storage -25 to +80 °C (-13 to 176 °F)) |
Application note: Requires an external HTU21 temperature/humidity element, sold separately.
(CE certified; not UL/NRTL listed — verify local code requirements before specifying in US installations)
Orders over $500 ship free within the USA (under 50 lbs). Orders under $500 carry a low cost shipping fee.
Most in-stock orders ship within 1–2 business days from Miami, FL. Delivery typically takes 3–5 business days depending on destination.
For freight or oversized orders, our team will contact you with a custom quote.
All KNXSupply products are covered by the manufacturer's warranty, ranging from 1 to 3 years depending on the brand. Warranty terms are fulfilled directly by the manufacturer.
If you experience any issue, contact us and we'll coordinate the claim process on your behalf.