Single Phase Soft Starters

This product has been developed specifically to soft start large single phase compressors and motors. It provides a dramatic reduction in the starting current but still provides full start torque. It will automatically adjust itself to cover the range of 1.75 to 7 hp. It is fully self-contained in a conveniently small, double insulated and flame retardant enclosure. Contact us if you're interested in purchasing our products or need more information.


Sure-Start soft starters are ETL, CE and RoHS compliant.


Features & Benefits

  • Rated for motors between 1.75 to 7 horse power electrical

  • Reduces locked rotor amperage (LRA)/inrush current up to 70% at start-up

  • Eliminates light flicker

  • Reduces start-up noise

  • Avoids torque stress fracture on pipes

  • Automatic optimization of motor start-up current

  • Reduced stress and heating of compressor/motor therefore extending the life

  • Allows systems to meet certain utility requirements

  • Easy installation with supplied wiring (special wiring options available)

Motor Protection Functions

  • Protects the compressor/motor from stalling at low voltages

  • Delay function limits number of motor starts per hour

  • Thyristor protected for long life (primary model only)

  • No extra motor contactor needed (primary model only)

  • Provides motor reversal protection during short power outages

  • Internal delay timers prevents rapid cycling in fault conditions

  • Provides brownout protectionSelf-testing diagnostics (primary model only)



  • SS0B12-20SN (115V, 60/50Hz, 12-20 FLA)

  • SS1B08-16SN (230V, 60/50Hz, 08-16 FLA)

  • SS1B16-32SN (230V, 60/50Hz, 16-32 FLA)

Sure Start products also reduce blinking lights and dimming lights when large AC loads start up.


T: 813-601-0947


2014 by Gen-Pro

Hyper Engineering and their distributor Gen-Pro, LLC is not to be held responsible for erroneous literature regarding capacities, dimensions, applications, etc. stated herein. Products, specifications, and data in this literature are subject to change without notice. The information herein is intended for use only by persons having the appropriate technical knowledge and skills (at their own discretion and risk). Since conditions of use are outside Hyper Engineering's and Gen-Pro's control, we cannot assume any liability for results obtained or damages occurred due to improper application. SureStart products must be installed by a licensed professional. ©2016 Hyper Engineering, Pty. Ltd. and Gen-Pro LLC. No refunds or exchanges if box is opened, other than Manufacturers Warranty (1 year from date of purchase).  APPROVED returns for unopened boxes will require a 15% restocking fee.