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SK07-TTHC-4B - KNX Behind-Switch Temp/Humidity Module, 2nd Temperature Input, without Sensors
✗
UL Listed
This product has not been certified by an NRTL (UL, ETL, CSA or
equivalent). Installation in USA projects may require a Field Evaluation
by a recognized laboratory. Consult your local AHJ before specifying.
~
Low Voltage · SELV
This device operates on a Safety Extra Low Voltage circuit — such as
the KNX 29V bus or a DALI 16V bus (NEC Class 2). When powered by an
NRTL-listed power supply, many AHJs accept non-listed SELV devices.
Verify with your local AHJ before specifying.
Regular price
$190.67 USD
Regular price
-17%
$228.80 USD
Sale price
$190.67 USD
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The SK07-TTHC-4B is a flush-box KNX controller module that installs behind the switch design of your choice. It reads an external HTU21 temperature/humidity element plus a PT1000 probe for a second temperature, such as floor or supply temperature. Both sensors are sold separately.
It calculates absolute humidity, dew point and enthalpy and includes an integrated room temperature controller (RTR) and four binary inputs/outputs. The module is bus powered and configured in ETS with the HLK305 application.
Key Features
- Connections for external HTU21 temperature/humidity element and PT1000 probe (both not included)
- Temperature -25 to +80 °C (-13 to 176 °F), ±0.4 °C (±0.72 °F) between 5 and 60 °C (41 to 140 °F); 0.02 °C (0.04 °F) resolution
- Humidity 0-100 % RH, ±3 % RH between 20 and 80 % RH
- Calculates absolute humidity, dew point and enthalpy
- Second temperature via PT1000, -50 to +400 °C (-58 to 752 °F) depending on probe
- 4 binary inputs/outputs
- Behind-the-switch module, 50 x 50 x 20 mm (1.97 x 1.97 x 0.79 in); bus powered; ETS application HLK305
Technical Specifications
| Article no. | 30540780 |
|---|---|
| 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; 2nd temperature: external PT1000 input -50..+400 °C (-58 to 752 °F) (accuracy depends on probe; probe not included) |
| Inputs / outputs & connections | 4 binary inputs/outputs; connections for external HTU21 and PT1000 |
| 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 and a PT1000 probe, both sold separately.
Downloads
(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.
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