motor soft starter / pump / single-phase / for compressors
CSS-32W Emerson Commercial & Residential Solutions



  • Type:

    motor, pump

  • Electrical characteristics:


  • Other characteristics:

    for compressors

  • Current:

    32 A


The Compressor Soft Starter CSS-25U / CSS-32U is used for
switching, protecting and starting current limitation of single
phase compressors in residential heat pump applications.
• For motors with maximum operating current up to 25A/32A
• Limitation of starting current to less than 45 A (PCN 805209
less than 30 A)
• Self-adjusting for use in 50 Hz or 60 Hz supply
• Self-adjusting to motor current - no manual adjustment or
calibration necessary
• Alarm relay output
• Start capacitor for improved motor acceleration is switched
off after start
• Low voltage shutdown
• Locked rotor recognition and shutdown
• Delay function to limit number of motor starts per hour
• Thyristor protected contactor for long life
• No extra motor contactor needed
• Self-diagnostics
• Mounting clip for easy installation allows DIN rail mounting
in two directions
• Easy connection by cage type screw terminals wire Ø 4mm