Multi-tenant meter centre single line diagram

Six tenant meters and a house meter on a 400A bus. Use this for a small apartment or commercial building with a meter centre: six tenant meters and a house meter on one 400A bus.

A free template with typical ratings, conductor callouts and general notes. Open it, change what differs on your job, fill in the title block and export a PDF.

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What the reviewer checks on this drawing

The reviewer checks a multi-family load calculation with demand factors, unit labels that match the suite doors, and the meter centre’s short-circuit rating against the available fault current.

What the drawing shows

Every device on the sheet, in the order power reaches it.

Notes on the sheet

• Service size confirmed by a multi-family load calculation with demand factors.
• Tenant breakers labelled with unit numbers that match the suite doors.
• Meter centre short-circuit rating to equal or exceed the available fault current.

Diagram is schematic and not to scale. Field-verify existing equipment ratings. Ratings and conductor sizes shown are typical. Confirm against the adopted code, the equipment listing and a load calculation before installation. Code references are to the 2023 NEC and the 2024 Canadian Electrical Code: see references and editions.

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