Tuesday, November 16, 2010

Selection Charts for DOL Starters (L&T Switchgear)

SELECTION CHART: FUSELESS PROTECTION FOR DOL STARTER FEEDERS WITH MPCB - Push Button
TYPE '2' Co-ordination, Iq = 50 kA at 415V, 30, 50 Hz.

 
HP
kW
FLC
(A)
Relay
Contactor
MPCB
Type
Range (A)
Type
Rating
0.125
0.09
0.4
-
-
MNX9
MNX-G0
0.25-0.4
0.16
0.12
0.45
-
-
MNX9
MNX-G0
0.4-0.63
0.2
0.15
0.57
-
-
MNX9
MNX-G0
0.4-0.63
0.25
0.19
0.7
-
-
MNX9
MNX-G0
0.63-1
0.33
0.25
0.9
-
-
MNX9
MNX-G0
0.63-1
0.5
0.37
1.2
-
-
MNX9
MNX-G0
1-1.6
0.75
0.55
1.6
-
-
MNX9
MNX-G0
1-1.6
1
0.75
2.1
-
-
MNX9
MNX-G0
1.6-2.5
1.5
1.1
2.7
-
-
MNX12
MNX-G0
2.5-4
1.75
1.3
3
-
-
MNX12
MNX-G0
2.5-4
2
1.5
3.8
-
-
MNX12
MNX-G0
2.5-4
2.5
1.8
4.8
-
-
MNX12
MNX-G0
4-6.3
3
2.25
5
-
-
MNX12
MNX-G0
4-6.3
4
3
6.2
-
-
MNX12
MNX-G0
4-6.3
5
3.7
7.9
-
-
MNX12
MNX-G0
6.3-10
6
4.5
9
-
-
MNX12
MNX-G0
6.3-10
7.5
5.5
11.4
-
-
MNX12
MNX-G0
10-16
10
7.5
15.4
-
-
MNX12
MNX-G0
10-16

 
SELECTION CHART: FUSELESS PROTECTION FOR DOL STARTER FEEDERS WITH MCCB / MPCB
TYPE '2' Co-ordination, Iq = 50 kA at 415V, 30, 50 Hz.

 
HP
kW
FLC
(A)
Relay
Contactor
MPCB/MCCB
Type
Range (A)
Type
Rating
0.125
0.09
0.4

-
MNX9
MNX-G1
0.25 - 0.4
0.16
0.12
0.45
-
-
MNX9
MNX-G1
0.4 - 0.63
0.2
0.15
0.57
-
-
MNX9
MNX-G1
0.4-0.63
0.25
0.19
0.7
-
-
MNX9
MNX-G1
0.63 -1
0.33
0.25
0.9
-
-
MNX9
MNX-G1
0.63 -1
0.5
0.37
1.2
-
-
MNX9
MNX-G1
1-1.6
0.75
0.55
1.6
-
-
MNX9
MNX-G1
1-1.6
1
0.75
2.1
-
-
MNX9
MNX-G1
1.6-2.5
1.5
1.1
2.7
-
-
MNX12
MNX-G1
2.5-4
1.75
1.3
3
-
-
MNX12
MNX-G1
2.5-4
2
1.5
3.8
-
-
MNX12
MNX-G1
2.5-4
2.5
1.8
4.8
-
-
MNX12
MNX-G1
4-6.3
3
2.25
5
-
-
MNX12
MNX-G1
4-6.3
4
3
6.2
-
-
MNX12
MNX-G1
4-6.3
5
3.7
7.9
-
-
MNX12
MNX-G1
6.3-10
6
4.5
9
-
-
MNX12
MNX-G1
6.3-10
7.5
5.5
11.4
-
-
MNX12
MNX-G1
10-16
10
7.5
15.4
-
-
MNX18
MNX-G1
10-16
12.5
9.3
19.5
-
-
MNX25
MNX-G1
16-20
15
11
23
-
-
MNX25
MNX-G1
20-25
17.5
13
24
-
-
MNX32
MNX-G1
20-25
20
15
29
-
-
MNX32
MNX-G1
25-32
25
18.6
38.5
-
-
MNX45
MNX-G3
32-40
30
22.5
40
-
-
MNX45
MNX-G3
32-40
35
26
47
-
-
MNX50
MNX-G3
40-50
40
30
55
-
-
MNX70
MNX-G3
50-58
45
33.5
60
-
-
MNX80
MNX-G3
55-63
50
37
66
MNX-R5
42-69
MNX140
DN 160H
100
60
45
80
MNX-R5
60-100
MNX140
DN160H
125
75
55
100
MNX-R5
60-100
MNX140
DN 160H
160
90
67.5
120
MNX-R5
90-150
MNX140
DN 160H
160
100
75
135
MNX-R5
90-150
MNX185
DN 250H
200
110
80
139
MNX-R5
90-150
MNX185
DN250H
200
125
90
165
MNX-R5
135-225
MNX225
DN 250H
250
150
110
200
MNX-R5
135-225
MNX265
DN 400H
320
175
130
230
MNX-R5
180-300
MNX265
DN 400H
400
197
147
260
MNX-R5
180-300
MNX265
DN 400H
400
200
150
275
MNX-R5
180-300
MNX325
DN 400H
400
215
160
280
MNX-R5
180-300
MNX325
DN 400H
400
225
168
300
MNX-R5
270-450
MNX400
DN 630H
500
245
180
320
MNX-R5
270-450
MNX400
DN 630H
500
270
200
340
MNX-R5
270-450
MNX400
DN 630H
500

 
SELECTION CHART: FUSELESS PROTECTION FOR DOL STARTER FEEDERS WITH MCCBs, type 'DM'
TYPE '2' Co-ordination, Iq = 50 kA at 415V, 30, 50 Hz.
HP
kW
FLC
(A)
Relay
Contactor
MCCB
Type
Range (A)
Type
Rating
0.125
0.09
0.4
MNX-R3
0.3-0.5
MNX9
DM16
0.63
0.16
0.12
0.45
MNX-R3
0.45-0.75
MNX9
DM16
0.63
0.2
0.15
0.57
MNX-R3
0.45-0.75
MNX9
DM16
1
0.25
0.19
0.75
MNX-R3
0.6-1
MNX9
DM16
1
0.33
0.25
0.9
MNX-R3
0.6-1
MNX9
DM16
1
0.5
0.37
1.2
MNX-R3
0.9-1.5
MNX9
DM16
1.6
0.75
0.55
1.6
MNX-R3
1.4-2.3
MNX9
DM16
1.6
1
0.75
2.1
MNX-R3
1.4-2.3
MNX 9
DM16
2.5
1.5
1.1
2.7
MNX-R3
2.0-3.3
MNX9
DM16
2.5
1.75
1.3
3
MNX-R3
2.0-3.3
MNX9
DM16
4
2
1.5
3.8
MNX-R3
3.0-5.0
MNX9
DM16
4
2.5
1.8
4.8
MNX-R3
4.5-7.5
MNX9
DM16
5
3
2.25
5
MNX-R3
4.5-7.5
MNX 9
DM16
5
4
3
6.4
MNX-R3
4.5-7.5
MNX9
DM16
7.5
5
3.7
7.9
MNX-R3
6-10
MNX 9
DM16
7.5
6
4.5
9
MNX-R4
9-15
MNX 32
DM16
10
7.5
5.5
11.4
MNX-R4
9-15
MNX 32
DM16
12
10
7.5
15.4
MNX-R4
14-23
MNX 80
DM16
16
12.5
9.3
19.5
MNX-R4
14-23
MNX 80
DM100
25
15
11
23
MNX-R4
20-33
MNX 80
DM100
25
17.5
13
24
MNX-R4
20-33
MNX 80
DM100
30
20
15
29
MNX-R4
20-33
MNX 80
DM100
35
25
18.6
38.5
MNX-R4
30-50
MNX 80
DM100
50
30
22.5
43
MNX-R4
30-50
MNX 80
DM100
50
35
26
47
MNX-R4
45-75
MNX 80
DM100
60
40
30
59
MNX-R4
45-75
MNX 80
DM 100
70
45
33.5
60
MNX-R4
45-75
MNX 80
DM100
70
50
37
69
MNX-R4
45-75
MNX 80
DM100
80
60
45
80
MNX-R4
66-110
MNX 95
DM160
100
75
55
100
MNX-R4
66-110
MNX 110
DM160
120
90
67.5
120
MNX-R5
90-150
MNX 140
DM160
160
100
75
135
MNX-R5
90-150
MNX 140
DM160
160
110
80
139
MNX-R5
90-150
MNX 185
DM250
200
125
90
165
MNX-R5
135-225
MNX 225
DM250
200
150
110
200
MNX-R5
135-225
MNX 265
DM400
275
175
130
230
MNX-R5
180-300
MNX 265
DM400
325
197
147
260
MNX-R5
180-300
MNX 265
DM400
325
200
150
275
MNX-R5
180-300
MNX 325
DM400
325
215
160
280
MNX-R5
180-300
MNX 325
DM400
350
225
168
300
MNX-R5
270-450
MNX 325
DM400
350
245
180
320
MNX-R5
270-450
MNX 325
DM400
400
270
200
340
MNX-R5
270-450
MNX 400
DM400
400

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