Electric Current Ratings
Rating Example:-
A 2.4kW heater connected to a 230V AC ~ supply.
1) What is the amperage?
I = W/VI = 2400/230
I = 10.43 amps
2) What is the resistance?
R = V2 / WR = 2302/2400
R = 22.04 ohms
kW 110V(1) 230V(1) 400V+N(3) 0.6
5.45
2.60
0.87
0.75
6.82
3.26
1.08
0.8
7.27
3.48
1.16
1.0
9.09
4.34
1.45
1.25
11.36
5.43
1.81
1.5
13.63
6.52
2.17
2.0
18.18
8.70
2.90
2.25
20.45
9.78
3.26
2.5
22.72
10.87
3.62
3.0
27.27
13.04
4.35
4.0
36.36
17.39
5.80
4.5
40.90
17.56
6.52
5.0
45.45
21.74
7.24
6.0
54.54
26.08
8.70
7.5
68.18
32.60
10.87
10.0
90.90
43.48
14.49
13.0
118.38
56.52
18.84
15.0
136.36
65.21
21.74
16.0
145.45
69.56
23.19
20.0
181.18
86.95
28.90
25.0
227.27
108.70
36.23