SR81 Electronic Thermal Controller

SR81 Electronic Thermal Controller
SR81 Electronic Thermal Controller

SR81 Electronic Thermal Controller

Regular price R 2,096.00 incl. VAT Sale price R 1,941.00 incl. VAT Save R 155
R 1,68783 excl. VAT
incl. VAT /

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Technical data

  • Power supply: 100…240V ~ (50…60Hz).
  • Rated impulse voltage: 2.5KV.
  • Housing: Plastic ABS.
  • Mounting: Wall mounting.
  • Accuracy of temperature measuring: ± 0.1°C
  • Range of collector temperature measuring: -10°C ~220°C
  • Range of tank temperature measuring: 0°C ~110°C
  • Suitable power of pump: 3 pump possible to be connected.
  • Operation: 10 push buttons at the front cover.
  • Protection type: IP40.
  • Dimension of display: 120mm*120mm*18mm.
  • Dimension of controller board with 3000W output: 218mm*165mm*55mm.

Note: there are 4 inputs for NTC10K, B=3950 temperature sensor, but only 1 sensor are included in the standard delivery Pack; the other two should be purchased separately by customer if necessary. An ITS Solar and Heat Pumps NTC10K Micro sensor is required for all retro fit and is not included as standard.


All solar products, power systems, water heating and gas products and their components must be installed by appropriately qualified personnel. All installations must adhere to local wiring regulations and standards. Sustainable Online will not be held liable for any product malfunctions as a result of incorrectly installed systems.

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