Distribution Board Connection

Distribution Board Connection

Single phase Distribution Board Connection:

This diagram shows how to make a distribution board connection. In this circuit, we use an SPD ( Surge Protection Device ), a DP MCB ( Double Pole miniature circuit Breaker ), an RCCB ( Residual Current Circuit Breaker ), and some other DP MCBs. First, we need to connect SPD with the power source and then connect all MCBs with the power source. Now it's ready for use.

Diagram of SDB wiring:

Distribution Board Connection
Fig 1: Distribution Board Connection

Components Need for this Project:

You can get the components from any of the sites below:

  1. DP MCB [See Buy Click Amazon]
  2. RCCB [See Buy Click Amazon]
  3. SPD [See Buy Click Amazon]
*Please note: These are affiliate links. I may make a commission if you buy the components through these links. I would appreciate your support in this way!


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Components used to make the Single phase SDB wiring:

01. DP MCB

Fig 2: DP MCB

Double pole MCB can control two wires. This circuit breaker is generally used in single-phase electric lines. Double pole MCB circuit breaker input has two wires supply two wires and an output. In a single-phase line, A double-pole MCB circuit breaker is used to give good production. This circuit breaker is provided through phase and neutral circuit breaker, it is very safe. This circuit breaker is preferred for home appliances. A DP MCB usually trips for 2 reasons 1. Overload 2. Short circuit.

02. RCCB 

Fig 3: RCCB

The RCCB (Residual Current Circuit Breaker) or RCCB is an electrical protective device. A residual Current Circuit Breaker is specially designed to protect the electrical circuit against earth faults and humans from electrical shock. In this, under normal conditions the load is always connected between the phase terminal to the neutral terminal, hence the flow of the phase current is equal to the neutral current. Earth fault or fault in a power system can cause excess heating, more power consumption, burning or fire, etc. So, protection against earth leakage is very important.

03. SPD

Fig 4: SPD

A surge protection device (SPD) or more commonly a surge protector is a device used to protect electronic devices from power surges or transient voltages. A surge protective device is a protective device that limits transient voltages or limits surge current. Surge Protective Devices are Used to Protect Sensitive Electronic Equipment Connected to the Installation such as Computers, Televisions, Washing Machines, and Safety Circuits such as fire Detection Systems and Emergency Lighting. Equipment with Sensitive Electronic Circuitry may be Vulnerable to Damage by Transient Overvoltages.

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Frequently Asked Questions

What is distribution board wiring?

A distribution board (also known as panelboard, breaker panel, electric panel, fuse box or DB box) is a component of an electricity supply system that divides an electrical power feed into subsidiary circuits while providing a protective fuse or circuit breaker for each circuit in a common enclosure.

What is a 3 phase distribution board?

3 phase distribution boards are panels that house the circuit breakers, ground leakage protection units and fuses that are used to distribute power to individual consumer points or circuits within a building.

What is MCB in distribution board?

MCB ( Miniature Circuit Breakers ) Distribution Board is a component of an electricity supply system that divides an electrical power feed into subsidiary circuits, while providing a protective fuse or circuit breaker for each circuit in a common enclosure.

What is DC distribution board?

DC distribution board combines the dc power of solar PV modules strings into a single array. In Addition, a combination of all strings is made a pass through individual array dc fuses in shunt with DC SPD.

Why we use MCB and ELCB in distribution board?

The MCB is an electromechanical device that protects electric wires, devices, appliances e.t.c from overcurrent so as to prevent any kind of damage, fire, or electrical hazards. MCBs are quite easy and much safer to handle; it also quickly restores the supply of currents.

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