HFE< >


This is the ideal ‘retrofit’ energy optimising solution for Soft Starting single phase compressors such as those used in Supermarket refrigerators and chillers etc., and can yield between 10 -32% energy savings. It has a rugged tin lid construction and can be mounted easily next to the machine or control panel. Installation of the unit is quick and simple due to the ‘two wires in, two wires out’ design. The unit is ‘fit and forget’ is there is no maintenance for the user.

Offering advantages over simple energy optimisers for similar cost, HFE provides mechanical and electrical stress reduction or elimination and optimised energy consumption when a chiller/refrigerator compressor is not under load. The starting current is reduced, and smooth acceleration is applied to the load.

This product is perfect for use in the applications shown below:

  • Refrigeration Systems
  • Chillers
  • Conveyors
  • Heat Pump
  • Coolers
  • Oven Fans
  • Air Conditioners
  • and many more

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Features and Benefits

Energy Optimising
Reduces energy consumption when the chiller/compressor is not at full load by 10 – 18%.  This  reduces energy costs (and related cost) and reduces carbon emissions (at the supply generation).

Torque Reduction
Mechanical and electrical stress reduction or elimination means compressors last longer and require less maintenance.

Ideal for Retrofit, Simple Installation
Quick and simple implementation means low cost install in existing equipment and rapid return on investment through energy and maintenance cost reduction.

“Fit and Forget”
No maintenance time or associated cost.

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Technical Data

Up to 30A

Operational Voltage
110 – 230 VAC Single Phase (-15% +10%)

Rated Frequency
50-60 Hz +/- 2Hz

Ingress Protection
IP30 with standard cover

Start Time
Approx 0.5 to 5 Seconds continuously variable

Pedestal Voltage
Fixed at approx 15%

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  • Placeholder HFE 1 User Manual

    This is the quick start guide for the HFE to 10A range of Soft Starters describing their use and operation.

  • Placeholder HFE 2 User Manual

    This is the quick start guide for the HFE2 range of Soft Starters describing their use and operation.

  • HFE Brochure

    This is a brochure detailing the sales highlights of the HFE range of Soft starters.

iERS is the most efficient technology for starting and running fixed speed motor applications.

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