What Is The Relationship Between Neutral Block And Neutral Wire?

The neutral wire in the distribution box belongs to the branch wire row. As the name implies, it plays the role of dividing wire. Take the household box in our house as an example, there are many neutral wires directly connected from the main switch. But if they are directly connected to the main switch, and the number is too large to connect, what should we do?

Therefore, the neutral wire appears. A neutral wire from the main switch is connected to the neutral wire, and then the wire from the neutral block is equivalent to directly connecting to the outlet end of the main switch.

Is the neutral wire of each circuit taken from the neutral block?

Of course not. It depends on the switch of this circuit

For example, a switch has only one set of terminals (one at the top and one at the bottom). When wiring, the live wire must be connected to the terminal. What about the neutral wire? We have to take it from the neutral wire.

Therefore, only 1p circuit breaker needs to be used with neutral block.

Other switches, such as 1p + n circuit breaker, 1p leakage circuit breaker, 2p circuit breaker, 2p leakage circuit breaker, etc., have two groups of terminals

When wiring, the neutral wire and the live wire can be connected to the switch. The neutral wire of the circuit controlled by the switch can be taken directly from the load end of the switch.

Where does the neutral wire of these switches come from? Of course, it is led from the load end of the main switch - as we said just now, leading out the neutral wire from the load end of the main switch is equivalent to leading out the neutral wire from the neutral block, so if you want to lead out from the neutral block, it is not impossible, at least the effect is the same.

However, the outgoing wire of neutral block lead is generally connected to the load directly. In the standard practice, it can not be led to the next level switch.