railway RRB JE (CBT I + CBT II) Mock Test 2024 Power Systems Protective Relays

Miniature Circuit Breakers (MCB) are used in domestic and commercial installations for control and protection. What is the range of current rating of single pole MCB commercially available?

1
2.0 to 6 A
2
0.5 to 60 A
3
1 to 62 A
4
6 to 32 A
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