3 Phase Mcb Wiring Diagram. Another one is a single pole mcb for the control circuit. Wiring diagram book a1 15 b1 b2 16 18 b3 a2 b1 b3 15 supply voltage 16 18 l m h 2 levels b2 l1 f u 1 460 v f u 2 l2 l3 gnd h1 h3 h2 h4 f u 3 x1a f u 4 f u 5 x2a r power on optional x1 x2115 v.
So to operate this dol starter first you have to turn on the main power mcb then the control mcb. As i shown in the above diagram. The power in the main breaker is then given to various busbars.
The figure below shows schematic diagram for industrial three phase wiring.
By using the the three pole circuit breaker we can control three phase power system and by using the four pole we can control 3 phase 4 wiring system. When the control mcb is turned on the control circuits will be charged. By using the the three pole circuit breaker we can control three phase power system and by using the four pole we can control 3 phase 4 wiring system. Another one is a single pole mcb for the control circuit.
