HFE Energy Saving Soft Starters 
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 up to 40% 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 
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 emmisions (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. 
Technical Data 
Current 
17A or 30A (2.2kW or 4kW @240V) 
 
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% 
HFE 17 
HFE 30 
Registered Address: Coombe Works, Derby Road, Kingsbridge, Devon, TQ7 1JL, UK VAT No. GB 367 2844 24 Registered No. 1559267 
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