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Topic: Installing meter with bypass

User: ampitup, Location: Durham, NC

Asked on: Tuesday, April 19, 2011 at 6:23 pm EDT
Answered on: Tuesday, May 14, 2024 at 4:25 am EDT

Question: On a two family house there is an existing 200a service with a three gang meter bank. There are are only two meters with the third socket not being used. I'm going to add a panel for common area circuits but the meter socket needs a bypass. Can I just put jumpers in the unused socket and feed a meter with a bypass that I nipple off the existing meter bank?

Yes, you can use the unused meter socket for a bypass.

Here's how to do it:1. Verify the voltage

Ensure that the voltage rating of the existing meter bank and the new bypass meter is the same (e.g., 120/240V).2.

Remove the cover of the unused meter socket

Expose the terminals inside the socket.3.

Connect jumpers

Install jumpers between the "Line In" and "Load Out" terminals on the unused socket. This will create a bypass that allows electricity to flow through the socket without a meter installed.4.

Install a new meter with a bypass

This new meter will measure the power consumption for the common area circuits. Nipple the new meter off the existing meter bank using a conduit and appropriate fittings.5.

Connect the new meter

Connect the "Line In" terminals of the new meter to the "Load Out" terminals of the unused socket. Connect the "Load Out" terminals of the new meter to the input terminals of the common area panel.6.

Close the meter bank cover

Securely replace the cover of the meter bank.

Caution



Use only certified bypass meters

Ensure that the bypass meter meets the appropriate safety and accuracy standards.


Secure all connections properly

Tighten all electrical connections according to manufacturer's instructions and local electrical codes.*

Label the bypass meter

Clearly mark the bypass meter as "Bypass" to avoid confusion.

By following these steps, you can safely and effectively use the unused meter socket for a bypass while adding a panel for common area circuits.
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