Smart-Boost Rotary Phase Converter SB-40

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Smart-Boost Rotary Phase Converter SB-40


Smart-Boost is a digital rotary phase converter.  Smart-Boost technology aids in the startup of motors connected downstream of the phase converter.  The Smart-Boost Digital Controller uses solid state relays (SCR) to re-energize the start capacitors at zero-degree crossing on the sine wave.   Which in turn, surges up to 600% more current to the motor during their startup.

What’s beyond Industry Standard… Smart-Boost™ SB-40  

  • Control Panel
    • Solid State Relay
    • Built-in Motor Starter
    • NEMA 1 Enclosure (Indoor)
    • Digital Controlled 600% Current Booster
    • Self Healing Oil-Filled Motor Start & Run Capacitors
  • ABB-Baldor Idler/Generator Motor
    • Soft Start
    • ODP (Open Drip Proof) – Indoor Rated
    • Low Impedance / High-Efficiency Design
  • 10-Year Parts / Lifetime Labor Warranty
  • Promotional Flat-rate Shipping ($179.95) of digital phase converters in the Continental US to a commercial location
    • Additional fees apply for Residential & Lift-gate Delivery
  • Financing Available

    • 475 $
    • 34 $
    • 55 $
    • 125 $
    • 68 $
SKU: SB-40-1-D3 Categories: ,


Best Single Motor Start:  20HP
Recommended 3 Phase Sizing:   46 Amps
Total Combined Load:  Please Call for Sizing (877) 545-2926

Easy Motor Loads up to 30HP…  Table Saw, Drill Press, Milling Machine
Medium Loads up to 25HP… Belt Sander, Grinder, Mixer
Hard Loads up to 20HP…  Gearhead Lathe, Dust Collector, Fan
Very Hard Loads up to 20HP…  Air-Compressor, Submersible Pump

SB-40 SPECS (Download Spec Sheet)SB40
Minimum Single Phase Input Circuit  30 Amps
Single Phase Input Voltage:   208 – 245 Volts
3 Phase Output Voltage:   208 – 245 (Based on Input)
Voltage Balance:   5 – 10%
Idler HP Size:   40
Model:   SB-40

Additional information

Weight 583 lbs
Dimensions 42 × 28 × 30 in


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