SureStart® - three phase
Give large compressors and motors a soft start and extend their lifetime
Get rid of the damaging start-up torque and achieve over 40%* reduction in compressor startup current with our range of three phase Surestart solutions.
The three phase soft starter is designed to significantly reduce start-up current and noise in many three phase motors.
The start-up current can be reduced by approximately 40% without compromising the start-up torque required.
Three phase soft starters are designed to cover a wide range of voltage models for 2 to 20 hp sized motors and are available in both 60Hz and 50Hz models.
See all Downloads at the bottom of the page.
Supply voltages
• 208-230 Volts
• 380 Volts
• 415 Volts
• 460 Volts
Applications
- HVAC/R
- Irrigation/submersible pumps
- Compressors
- Marine/RV
- Solar power
- RV/trucks
- Military/government
- Backup generators
Features and benefits
- Reduce inrush current by up to 40% at startup
- Voltage protection from brownout and intermittant power failure
- Automatic optimization of motor current
- Reduces light flicker
- Extends life by reducing stress and heating of compressor/motor
- Allows systems to meet certain utility requirements
- Auto-Start on power up with no requirement for auxiliary control power
- Easy installation with minimal wiring required
Motor Protection Functions
- Low voltage / high voltage shutdown
- Provides phase reversal protection
- Delay function limits number of motor starts per hour
- Internal timing prevents rapid cycling faults
- Provides brownout protection
- Prevents fatigue failure of motor bearings, piping and motor foundation structure
Models
• SS5A04-27SN (460V, 60Hz, 04-27 FLA)
• SS4A04-34SN (415V, 50Hz, 04-34 FLA)
• SS3A04-27SN (380V, 50/60Hz, 04-27 FLA)
• SS2A04-28SN (208-230V, 50/60Hz, 04-28 FLA))
