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Portable / Manual Transfer Switch Installation Certificate

This certificate documents the installation of a manual or portable transfer switch used to connect a portable generator to a home or business safely. It records the interlock or transfer equipment, the circuits served, and the checks that prevent back-feeding the utility grid.

NEC Article 702 (Optional Standby Systems), NEC 702.7 (transfer equipment), state/local electrical codesValid: One-off (no expiry)

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Sample Transfer Switch Cert certificate

Sample Portable / Manual Transfer Switch Installation Certificate certificate created with CertBox, showing the professional PDF layout with transfer switch or interlock kit type and rating, circuits served by the standby supply, generator inlet and cord rating

Sample Transfer Switch Cert with fictional data. All personal details shown are fake.

What it covers

  • Transfer switch or interlock kit type and rating
  • Circuits served by the standby supply
  • Generator inlet and cord rating
  • Grounding and bonding checks
  • Back-feed prevention verification
  • Load test result

Who needs a Transfer Switch Cert?

Homeowners with portable generators
Small businesses
Facility managers
Electrical contractors

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Frequently asked questions about Transfer Switch Cert

Do I need a permit for a manual transfer switch?
Most jurisdictions require an electrical permit and inspection for a permanently installed transfer switch or generator interlock. Requirements vary by AHJ, so confirm with your local building department.
What is the difference between an interlock kit and a manual transfer switch?
An interlock kit is a mechanical device on the main panel that stops the main and generator breakers being on at the same time. A manual transfer switch is a separate switch that moves selected circuits between utility and generator. Both are covered under NEC 702.

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