0.5-30
HP Range
110V
Single Phase
240V
Single/Three Phase
480V
Three Phase
110V Single Phase
240V Single/Three Phase
480V Three Phase
HP 110V (Amps) 240V (Amps) 480V (Amps) Typical RPM Application

Motor Selection Guidelines

  • 110V: Light duty applications, limited to smaller motors (up to 2 HP)
  • 240V: Medium duty, good balance of power and efficiency
  • 480V: Heavy duty industrial applications, most efficient for large motors
  • Starting Current: Typically 6-8x running current for DOL starters
  • Service Factor: Usually 1.15 for continuous duty motors
  • VFD Operation: Reduce starting current and enable speed control

Industrial Applications

  • 0.5-2 HP: Light conveyors, fans, pumps, short runs
  • 3-7.5 HP: Medium conveyors, moderate loads, longer runs
  • 10-15 HP: Heavy conveyors, long runs, high-speed systems
  • 20-30 HP: Industrial systems, heavy loads, continuous operation
  • VFD Compatible: Variable frequency drive ready for all sizes
  • NEMA Premium: High-efficiency motors for energy savings

Installation Notes

  • Wire Sizing: Use NEC tables, factor in voltage drop
  • Overload Protection: Set to 115-125% of FLA
  • Disconnect Rating: Minimum 115% of motor FLA
  • Grounding: Required for all motor installations
  • Thermal Protection: Consider ambient temperature ratings
  • Duty Cycle: Continuous vs intermittent affects sizing

Efficiency Considerations

  • Higher Voltage: Lower current = reduced I²R losses
  • Power Factor: Typically 0.85-0.90 at full load
  • Premium Efficiency: 2-4% more efficient than standard
  • VFD Efficiency: 95-98% at rated load
  • Motor Loading: Peak efficiency at 75-100% load
  • Energy Savings: Calculate ROI for premium motors