Quote:
Originally Posted by Mark McLeod
That removes the VRM load sharing the circuit.
The snap action does take longer to cut over current and also resets, but by separating the two loads it shouldn't happen. You'll let us know 
I imagine you have a compressor pulling more current than you expect.
That plus the VRM load can push the total current up high enough to melt the fuse. Separated the two loads and they will probably be okay. |
So the actual problem was that the wiring from the PDP to the PCM was too small (I believe it was 18). When the compressor kicked it blew the fuse. We went to 16 and everything is fine. That seems like a fine line - but no blown fuses since.
I did compare a few compressors and all operated similarly (VIAIR 90).
Is my wiring arrangement legal though? I have PCM power from a 20A snap action breaker in the PDP, then going to the compressor. The VRM remains on the separate fuse, and is only powering our router. The breaker will reset if it does trip and won't kill the router.
Does the PCM (and subsequently the compressor) have to be powered from that PDP fuse?