SK20-TC-2B KNX temperature sensor, surface-mounted IP20
€153,11 Incl. tax €204,84 Incl. tax. Out of stock, but available
Specifications
Information
Product Description – SK20-TC-2B
Part No. 30511261
The SK20-TC-2B from Arcus-EDS (part number 30511261) is a KNX temperature sensor for surface mounting, designed for accurate measurement and control of indoor room temperature in dry environments. The internal sensor can optionally be weighted with an external temperature input.
This device supports extensive HVAC control functions and is suitable for both heating and cooling systems. It offers selectable operating modes (Comfort, Standby, Economy, Protection) and allows temperature setpoint adjustments via KNX objects. Two potential-free binary inputs/outputs enable integration with external devices such as fans or switches.
The sensor features four programmable logic blocks for flexible signal processing, as well as heat and frost alarms, threshold monitoring, and a valve flush function. The control output can be configured as a proportional signal (0–100%) or as a PWM signal for thermal actuators.
Important Note
Note: The SK20-TC-2B is intended for surface mounting with a protection rating of IP20 and is only suitable for dry, non-condensing indoor environments.
Technical Specifications
- Part number: 30511261
- Measured value: Temperature
- Temperature range: -25 °C to +80 °C
- Resolution: 0.02 °C
- Accuracy: ±0.4 °C (5–60 °C), otherwise ±0.8 °C
- Control function: Integrated, for heating and cooling
- Setpoints: Comfort, Standby, Economy, Protection
- Setpoint adjustment: via KNX objects
- Alarm functions: Heat and frost alarm
- Threshold monitoring: Yes
- Fan control: via external inputs
- Output signal: 0–100% or PWM
- Valve flush function: Yes
- Auxiliary controller (2nd control loop): Yes
- Binary inputs/outputs: 2 (potential-free)
- Logic functions: 4 logic blocks
- Power supply: KNX bus 21–32 VDC
- Power consumption: approx. 240 mW (at 24 VDC)
- Ambient temperature: -25 °C to +80 °C
- Humidity: 0–100% r.h., non-condensing
- Bus connection: 2-pin terminal (red/black)
- Protection rating: IP20
- Housing: Plastic, white
- Dimensions: 71 × 71 × 25 mm
- Bus coupler: Integrated
- External power supply: Not required
- Configuration: ETS version 4 or higher, application HLK305
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