Motor Winding Resistance

 

1 Phase 3 Wire Motor Winding Resistance, 1-Phase 2 Wire Motor Winding Resistance, 3-Phase Motor Windings, Delta or Wye

 

Tuhorse Motor Winding Static Resistance (at 25°C)
 
      Line-to-Line Resistance (Ohms)    
  KW Volts BL-YL YL - RED BL - RED
Winding Connection
Circuit Breaker Used In Power Service Panel
3" Single Phase, 3-Wire 
3/4HP 0.55 230 4.6 11.3 16 3-wire 15
1HP 0.75 230 3.7 8.3 12 3-wire 15
4" Single Phase 230V, 3-Wire              
1HP 0.75 230 2.7 5.1 7.8 3-wire 15
1.5HP 1.1 230 2.2 3.6 5.8 3-wire 20
2HP - 2015 and before 1.5 230 1.5 3.7 4.1 3-wire 25
2HP - 2016 and after 1.5 230 1.5 2.6 4.1 3-wire 25
3HP - 2015 and before 2.2 230 1.1 2.7 3.8 3-wire 30
3HP - 2016 and after 2.2 230 1.1 2.1 3.3 3-wire 30
5HP 3.7 230 0.9 2.2 3.1 3-wire 50
4" Single Phase, 2-Wire              
1HP 0.75 230 - - 2.7 2-wire 20
1.5 HP 1.1 230 - - 2.1 2-wire 25
4" 3 Phase 230V              
2HP 1.5 230 2.5 2.5 2.5 Delta 20
3HP 2.2 230 1.5 1.5 1.5 Delta 25
5.5HP 4 230 0.9 0.9 0.9 Delta 30
4" 3 Phase 460V              
3HP 2.2 460 6.1 6.1 6.1 Wye 15
5.5HP 4 460 3.6 3.6 3.6 Wye 20
6" 3 Phase 230V              
10HP Oil Cooled 7.5 230 0.5 0.5 0.5 Delta 60
10HP Water Cooled 7.5 230 0.4 0.4 0.4 Delta 60
20HP Oil Cooled 15 230 0.2 0.2 0.2 2-Delta 100
20HP Water Cooled 15 230 0.2 0.2 0.2 2-Delta 100
6" 3 Phase 460V              
10HP Oil Cooled 7.5 460 2 2 2 Wye 35
10HP Water Cooled 7.5 460 1.7 1.7 1.7 Wye 35
20 HP Oil Cooled 15 460 0.8 0.8 0.8 Delta 60
20 HP Water Cooled 15 460 0.8 0.8 0.8 Delta 60
30 HP Oil Cooled 22 460 0.5 0.5 0.5 Delta 80
30 HP Water Cooled 22 460 0.6 0.6 0.6 Delta 80
Solar              
1000W 110V 4" 1 110 0.6 0.6 0.6 Delta N/A
500W 48V 3" 0.5 48 0.4 0.4 0.4 Delta N/A
210W 36V 3" 0.21 36 0.5 0.5 0.5 Delta N/A