Electrical – Do fluorescent fixtures rated for “Through Wiring” exist

electricalgaragelight-fixture

I'd like to span a lighting circuit and an appliance circuit across a steel I-beam in a low ceiling garage using a fluorescent fixture:

Lighting + Appliance Circuit ------\   I   /-------- Appliance Circuit
                             ______|___I___|_________
                                 '-----------'

The fluorescent fixture is shown in the above ASCII art attached to the ceiling below the "I" beam.

In a previous question I confirmed that given a light fixture "identified for through-wiring", this is up to code. However, I haven't been able to find any fluorescent fixtures "identified for through-wiring". None of the product literature mentions anything like that. I've seen some that are indicated for end-to-end connection, but I don't think I can put an appliance circuit through one like that.

I don't want this to be a "shopping" post, but can anyone point me to some example product literature for a fluorescent fixture so I and others know what kind of wording to look for?

Best Answer

There should be a stamp/label on the fixture similar to

MAXIMUM OF 8 NO 12 AWG THROUGH BRANCH CIRCUIT CONDUCTORS SUITABLE FOR AT LEAST 90°C PERMITTED IN BOX (4 IN 4 OUT).

Not sure that would be listed anywhere if you're shopping online, as most websites aren't great at describing products. Surely if you went to a physical store, you could inspect the fixture for the marking. You might also be able to find this information on the manufacturer's website, in their catalog, or by contacting them directly.

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