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by lmpdev 921 days ago
Do not attempt a hybrid system with different voltages DIY

In an industrial setting it can be done but you need an extremely well designed and made termination point for one system and an interconnect for another, I’ve seen customers using floating grounds (and negative voltages) to enforce it

If upgrading to 24V or 48V I recommend having a solid grasp on circuit protection first, and if you have concerns, pay the 30 minutes or so labour for an automotive electrician to inspect it