Monday 18 May 2015

Fuse, MCB, MCCB selection for motor, DOL starting

Fuse, MCB, MCCB for motor (380-415V, AC), DOL starting
Fuse, MCB, MCCB for motor, DOL starting


Motor KW
line current(A)
MCB
FUSE
MCCB
1.1
2.5-4
16
10
6
2.2
4.5-5.5
16
20
6
3.7
7.5-10
25
25
16
5.5
10-12
32
32
16
7.5
13-16
40
40
25
11
19-22
50
50
32
15
25-31
63
63
50
18.5
30-38

80
50
22
38-46

100
80
30
51-62

125
80
37
62-73

125
100
45
74-88

160
125
55
92-102

200
150
75
123-140

250
200
90
150-165

250
250


FUSE , MCB and MCCB rating for star-delta is generally 70% of DOL selection.

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