Friday, October 30, 2015

AC motors current Rating Chart

Induction motors are part of every industry and Household. There are motors available from fraction of KW to 375 KW motors.
Induction motors are also available with higher ratings but those are HT motors.


AC Motors current rating chart for induction motors is as given below:-


KW Rating Horse power rating Three Phase (415V Supply) Single Phase 220V Supply
0.1 1/8 0.4 1.6
0.12 1/6 0.5 1.9
0.18 1/4 0.7 2.3
0.25 1/3 0.9 2.9
0.37 1/2 1.3 3.9
0.56 3/4 1.6 5.5
0.75 1 1.8 7.3
1.1 1.5 2.6 10
1.5 2 3.4 13
2.2 3 5 19
3 4 6.5 24
3.7 5 8 27
4 5.5 8 30
5.5 7.5 11 41
7.5 10 15 55
9.3 12.5 18
10 13.5 20
11 15 22
15 20 28
18 25 36
22 30 39
30 40 52
37 50 69
45 60 79
55 75 96
75 100 125
90 125 156
110 150 189
130 175 224
150 200 255
185 250 403
225 300 482
260 350 560
300 400 636
335 450 711
375 500 786

AC current rating chart is for 3-Phase power supply and Single Phase power supply.


AC motors current rating chart for 1-phase induction motors is upto 7.5 KW as above this rating of motor at single phase will have a very big size.


Above AC motors current rating chart is at 50HZ supply frequency.

Cable selection chart of above motors is below:-

http://electrialstandards.blogspot.com/2015/10/cable-selection-chart-for-motors.html