SK08-T8-PT500 - KNX 8-Channel PT500 Temperature Measuring and Control Unit, IP54/65

SKU: 30801500
✗ 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 $472.06 USD
Regular price -17% $566.48 USD Sale price $472.06 USD
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The SK08-T8-PT500 is an eight-channel KNX measuring and control unit for up to eight external PT500 temperature probes. Its IP54/65 surface-mount housing is suited to indoor, outdoor and damp-room installation.

Use it to monitor, control and log heating and cooling circuits from a single bus device. Resolution is 0.01 °C (0.02 °F) with ±0.3 °C (±0.54 °F) accuracy, and the measuring range runs from -50 to +400 °C (-58 to 752 °F) depending on the probe used. The unit is bus powered and configured in ETS with the Arc_S8 application. Probes are ordered separately.

Key Features

  • 8 temperature inputs for PT500 probes (not included)
  • Range -50 to +400 °C (-58 to 752 °F) depending on probe; 0.01 °C (0.02 °F) resolution, ±0.3 °C (±0.54 °F) accuracy
  • Monitoring, control and logging of heating and cooling circuits
  • IP54/65 surface-mount housing for indoor, outdoor and damp locations
  • Bus powered, 10 mA bus load; no auxiliary supply
  • ETS application Arc_S8 (S8-T8)

Technical Specifications

Article no. 30801500
KNX bus voltage KNX 21-32 VDC
Power consumption 10 mA KNX bus load
Auxiliary supply Not required
Measuring 8 temperature channels for external RTD probes (not included); range -50 to +400 °C (-58 to 752 °F) depending on probe; resolution 0.01 °C (0.02 °F); accuracy ±0.3 °C (±0.54 °F)
Inputs / outputs & connections 8 x RTD temperature inputs (PT100 / PT500 / PT1000 depending on variant)
Protection rating IP54/65 (bus coupler)
Mounting Surface mount (AP); indoor, outdoor and damp rooms
Operating temperature -25 to +80 °C (-13 to 176 °F) (storage -25 to +80 °C (-13 to 176 °F)); 0-100% r.H. non-condensing

Application note: Requires up to eight external PT500 temperature probes, sold separately.

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(CE certified; not UL/NRTL listed — verify local code requirements before specifying in US installations)

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