Can I mount a transfer switch on its side or upside down?

National Electric Code requires all affixed labels to be easily read. Mounting the unit in any direction other than its intended installation may not meet the code. Homeowners should discuss their installation with a certified electrician or their inspector.

  • Sep 18, 2023
  • Knowledge

Title
Can I mount a transfer switch on its side or upside down?
URL Name
Can-I-mount-a-transfer-switch-on-its-side-or-upside-down

Public Answer
National Electric Code requires all affixed labels to be easily read. Mounting the unit in any direction other than its intended installation may not meet the code. Homeowners should discuss their installation with a certified electrician or their inspector.

The outdoor rated switches are only tested for the NEMA 3R rating when mounted as directed. Mounting in any other direction can allow water to enter the switch. This type of damage is not warrantable.
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