AIR CIRCUIT BREAKERS - Electrical and Electronics Division

8
Sr.
No.
1 1 0.75 1.8 1.04 1 - 1.6 ML0 ML0 ML0 4
2 1.5 1.1 2.6 1.5 1 - 1.6 ML0 ML0 ML0 6
3 2 1.5 3.5 2.02 1.5 - 2.5 ML0 ML0 ML0 6
4 3 2.25 5.0 2.88 2.5 - 4 ML0 ML0 ML0 8
5 4 3.0 6.2 3.58 2.5 - 4 ML0 ML0 ML0 10
6 5 3.75 7.5 4.32 4 - 6.5 ML0 ML0 ML0 16
7 6 4.5 9.0 5.2 4 - 6.5 ML0 ML0 ML0 16
8 7.5 5.5 11.0 6.34 6 - 10 ML0 ML0 ML0 20
9 10 7.5 14.0 8.08 6 - 10 ML0 ML0 ML0 20
10 12.5 9.3 18.0 10.4 10 - 16 ML0 ML0 ML0 32
11 15 11.0 21.0 12.1 10 - 16 ML0 ML1 ML1 32
12 20 15.0 28.0 16.2 13 - 21 ML1 ML1.5 ML1.5 40
13 25 18.5 35.0 20.2 13 - 21 ML1 ML1.5 ML1.5 50
14 30 22.5 40.0 23 20 - 33 ML2 ML2 ML2 63
15 35 26.0 47.0 27 20 - 32 ML2 ML2 ML2 63
16 40 30.0 55.0 31.8 28 - 42 ML2 ML3 ML3 63
17 45 33.5 60.0 34.6 28 - 42 ML2 ML3 ML3 80
18 50 37.5 66.0 38.2 28 - 42 ML2 ML3 ML3 80
8/30
SELECTION CHART �OR STAR DELTA STARTERS
ML Relays and ML Contactors
(Type “C” Co-ordination IS8544 (Part1)/IEC 292-1, Type “2” Co-ordination IS13947(Part4/Sec1)/IEC 60947-4-1)
Motor Rating Current at 415V, A
HP kW Line Phase
Relay Range
(A)
Star
Contactor
Line Delta
HRC Back-up �use
Rating,A