Selection Charts for DOL Starters (L&T Switchgear)

SELECTION CHART: FUSELESS PROTECTION FOR DOL STARTER FEEDERS WITH MPCB - Push Button

TYPE '2' Co-ordination, I_q = 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, I_q = 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, I_q = 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