Can I Use Both Active And Passive POE To Run a Camera Inside a Heated Enclosure?

Camera is POE, heater/blower is 24AC, ~.25 amp. Cat 6a cable is 25 meters. Don't want to run two cables...

This must be a common scenario. What are the objections to using both active and passive at the same time?

I tested using a passive injector connected directly to the POE switch and 24AC wall wart. The injector's RJ-45 plug is only pinned 1,2,3,6, the jack is fully pinned with the AC ending up on 4,5,7,8. The 6a plugs into the jack, which at the camera, plugs into the jack of a passive splitter, which splits back into AC power and a rj-45 plug pinned 1,2,3,6 that plugs to the camera.

Should I do it?

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