hortsmann HFT4

Horstmann HFT4 Electronic Frost Thermostat – Tamperproof dial

£28.95 (£24.13 ex.VAT)



Product Description

HFT4 Frost Thermostat:

The HTF4 electronic mains operated frost protection thermostat ensures heating will switch on whenever frost conditions are detected.

The temperature control accuracy of +/- 0.5°C and different TPI settings – gas, oil and electric systems – will reduce the temperature swing that normally occurs with older style thermostats. As a consequence these thermostats will help to save energy as the control algorithm allows the boiler to operate in condensing mode for longer periods.

As these units are all mains powered, a simple 3 wire connection is required. This comprises a live and neutral input and a switched live output to the equipment being controlled (excluding earthing arrangements).

Technical Specifications:

  • Power supply: 230V 50Hz
  • Contact rating: 3 (1) Amps at 230V AC
  • Temperature accuracy: +/- 0.5°C (at 21°C with 0.5 amp load)
  • Contact type: Micro-disconnection
  • Dimensions (mm): 86 x 86 x 36.25
  • Pollution control: Degree 2
  • Design standard: EN60730 – 2-9
  • Temperature range: 0-20°C
  • Rated impulse voltage: Cat 1-1500V
  • Enclosure protection: IP30

This item is usually delivered within 3 – 5 working days.

For further information please call our Sales Team on 01543 509444