Single Phase Meter Wiring Diagram with Energy Meter and MCB

Work & Installation (Input → Output)

Phase and neutral supply to the utility provider are the starting point of the installation. Such wires are initially linked to the energy meter, which records consumption. Based on the meter output, the phase and neutral are connected to a DP main switch or DP MCB, so that both the wires can be isolated simultaneously. The DP switch output is then linked to the distribution board, where there are several sub-MCBs. The sub-MCBs regulate independent load circuits, e.g., lights, fans, sockets, geysers, or air conditioners. All loads and appliances are linked to earthing to provide safety. The system guarantees the proper circulation of electricity in terms of the input and output, as well as the overload and short circuit protection. Circuit labels are easier and more convenient to troubleshoot and maintain.

Testing & Final Adjustments

After the wiring is done, there is a test is made that determine whether the system is working fine. To begin with, confirm that the meter phase and neutral connections are tight. Measure the reading on the energy meter to ensure that the meter is reading correctly. Make the main DP switch energized and then test the sub-MCBs by turning them to the on position and monitoring the load connected to them. The MCB should trip on overloaded circuits, a nd this is an indication that the protection is functional. Test voltage at other points to ensure that there is a supply of ~220 V. Earthing resistance should also be measured, preferably to less than 1 ohm to guarantee successful fault clearance. Make sure that the DP switch deenergizes the phase and neutral at the same time. Nameless each MCB in accordance with its load (e.,g. lighting, sockets, AC). Tie up loose terminals, tethe st insulation of wires, and ensure that the neutral and earth are not mixed up. Once these modifications are completed, the wiring system is secure, dependable, and fit to be used over a long period of time.