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Stellar Soft Starters

Stellar Soft Starters

AC Motor Soft Starters

STELLAR™ SR22 Series Compact 3-Phase Soft Starters

  • 5A to 40A rated current versions @ 208–460V
  • 45 mm and 55 mm standard sizes

 

SR22 semi-conductor solid state soft starters provide many advantages when used instead of electro-mechanical contactors to control 3-phase AC induction motors.

  • The SR22 motor soft starters use thyristors for controlled reduced voltage motor starting and stopping
  • These low voltage soft starters then switch to internal contacts for efficient running at the rated speed

Applications
  • General purpose soft start applications where traditional across-the-line starting or wye-delta starting would typically be appropriate.
  • Application types include: Agitator, Air Compressor, Ball Mill, Centrifuge, Chiller, Conveyor, Crusher, Escalator, Fan (Low and High Inertia), Feeder, Grinder, Hammer Mill, Lathe Machine , Mills (Flour, etc.), Mixer (Unloaded or Loaded), Pelletizer, Plastic and Textile Machines, Press (Flywheel), Pump (Centrifugal), Pump (Positive Displacement), Rolling Mill, Saw (Band), Saw (Circular), Screen (Vibrating), Transformer, Voltage Regulator, Tumbler, Wood Chipper.

 

 

videoSR22 Series Soft Starters
Features
  • 5-40A @ 208-460V
  • 24 VDC control voltage
  • Easily and separately adjustable motor start and stop times
  • Two-phase control
  • Internal bypass contacts for run
  • Error and Run LEDs
  • DIN rail mounting
  • Cooling fans (available option)
  • Two standard-size widths: 45 mm & 55 mm
  • Six error/trip indications: AC Supply, Control Supply, Overheated, Bypass Failure, Shear Pin, Overcurrent
Standards and Approvals
  • UL listed* (E333109) *(optional fans are UL recognized: E132139, E77551, E89936)
  • RoHS
  • CE
Optional Soft Starter Accessories
  • Cooling fan (increases # of motor starts/hour)
 Advantages
  • Mechanical Advantages
    • Smooth acceleration; reduced shock and starting stress
    • Extend lifespan of mechanical drive train components
    • Fluid couplings and some clutches can be eliminated
  • Electrical Advantages
    • Reduced motor starting current
    • More motors or larger motors can be started from lower-capacity power sources
    • Allows motors to be started more frequently
    • Internal mechanical contacts open and close under reduced current, increasing lifespan and reliability
  • Economic Advantages
    • Lower overall costs for new installations
    • Reduced maintenance and replacement of mechanical drive train components
    • Reduced starting current reduces electrical power costs by reducing peak demand


Soft Starter Selection / Sizing
  • Our Sizing Chart contains 3 easy steps to properly size your soft starter based on horsepower, voltage, and starting class

Compact Soft Starters / Cooling Fans
 



Compact AC Motor Soft Starters Overview a

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  1. Product Code: SR22-05 Soft starter,5A,208-230/460VA
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    SOFT STARTER, 5A, 208-230/460 VAC, Learn More
    $303.00
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  2. Product Code: SR22-07 Soft starter,7A,208-230/460VA
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    SOFT STARTER, 7A, 208-230/460 VAC, Learn More
    $333.00
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  3. Product Code: SR22-09 Soft starter,9A,208-230/460VA
    Rating:
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    SOFT STARTER, 9A, 208-230/460 VAC, Learn More
    $344.00
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  4. Product Code: SR22-12 Soft starter,12A,208-230/460A
    Rating:
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    SOFT STARTER, 12A, 208-230/460 VAC, Learn More
    $373.00
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  5. Product Code: SR22-16 Soft starter,16A,208-230/460A
    Rating:
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    SOFT STARTER, 16A, 208-230/460 VAC, Learn More
    $417.00
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  6. Product Code: SR22-22 Soft starter,22A,208-230/460A
    Rating:
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    SOFT STARTER, 22A, 208-230/460 VAC, Learn More
    $541.00
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  7. Product Code: SR22-30 Soft starter,30A,208-230/460A
    Rating:
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    SOFT STARTER, 30A, 208-230/460 VAC, Learn More
    $722.00
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  8. Product Code: SR22-36 Soft starter,36A,208-230/460A
    Rating:
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    SOFT STARTER, 36A, 208-230/460 VAC, Learn More
    $890.00
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  9. Product Code: SR22-40 Soft starter,40A,208-230/460A
    Rating:
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    SOFT STARTER, 40A, 208-230/460 VAC, Learn More
    $1,047.00
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  10. Product Code: SR22-FAN-45 Cooling Fan SR22 series,45mm
    Rating:
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    COOLING FAN FOR 45mm SOFT STARTERS, Learn More
    $104.00
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  11. Product Code: SR22-FAN-55 Cooling Fan SR22 series,55mm
    Rating:
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    COOLING FAN FOR 55mm SOFT STARTERS, Learn More
    $104.00
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  12. Product Code: SR33-22 Soft starter,22A,208-230/460A
    Rating:
    0%
    SOFT STARTER 22A 208-230/460 VAC Learn More
    $919.00
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  13. Product Code: SR33-29 Soft starter,29A,208-230/460A
    Rating:
    0%
    SOFT STARTER 29A 208-230/460 VAC Learn More
    $980.00
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  14. Product Code: SR33-41 Soft starter,41A,208-230/460A
    Rating:
    0%
    SOFT STARTER 41A 208-230/460 VAC Learn More
    $1,118.00
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  15. Product Code: SR33-55 Soft starter,55A,208-230/460A
    Rating:
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    SOFT STARTER 55A 208-230/460 VAC Learn More
    $1,242.00
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  16. Product Code: SR33-66 Soft starter,66A,208-230/460A
    Rating:
    0%
    SOFT STARTER 66A 208-230/460 VAC Learn More
    $1,364.00
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  17. Product Code: SR33-80 Soft starter,80A,208-230/460A
    Rating:
    0%
    SOFT STARTER 80A 208-230/460 VAC Learn More
    $1,469.00
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  18. Product Code: SR33-97 Soft starter,97A,208-230/460A
    Rating:
    0%
    SOFT STARTER 97A 208-230/460 VAC Learn More
    $1,568.00
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  19. Product Code: SR33-132 Soft starter132A,208-230/460A
    Rating:
    0%
    SOFT STARTER 132A 208-230/460 VAC Learn More
    $1,982.00
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  20. Product Code: SR33-160 Soft starter160A,208-230/460A
    Rating:
    0%
    SOFT STARTER 160A 208-230/460 VAC Learn More
    $2,178.00
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  21. Product Code: SR33-195 Soft starter195A,208-230/460A
    Rating:
    0%
    SOFT STARTER 195A 208-230/460 VAC Learn More
    $2,402.00
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  22. Product Code: SR33-241 Soft starter241A,208-230/460A
    Rating:
    0%
    SOFT STARTER 241A 208-230/460 VAC Learn More
    $3,777.00
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  23. Product Code: SR33-280 Soft starter280A,208-230/460A
    Rating:
    0%
    SOFT STARTER 280A 208-230/460 VAC Learn More
    $3,983.00
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  24. Product Code: SR33-350 Soft starter350A,208-230/460A
    Rating:
    0%
    SOFT STARTER 350A 208-230/460 VAC Learn More
    $6,032.00
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  25. Product Code: SR33-430 Soft starter430A,208-230/460A
    Rating:
    0%
    SOFT STARTER 430A 208-230/460 VAC Learn More
    $6,587.00
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  26. Product Code: SR33-482 Soft starter482A,208-230/460A
    Rating:
    0%
    SOFT STARTER 482A 208-230/460 VAC Learn More
    $6,897.00
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  27. Product Code: SR33-HS1 Optional heat shrink Inst kit
    Rating:
    0%
    HEAT SHRINK KIT FOR SR33-132 THRU Learn More
    $19.00
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