Right then guys before i go out and buy a new one, can anyone tell me if they see any issue with me replacing my pressure switch (which just started leaking this afternoon mid spraying my car ) with another, off spare compressor i was going to build up. The diffefence between the two is that the second one is from a three phase compressor and so is specified for 400V. When i got the unit it came wired with conventional blue brown green/yellow so i dont think wiring should be an issue. So basically can you see any issue with me using it? as surely it will just be the contacts that are rated for a circuit amperage and 400V?? or is there other gubins that im not aware of? Any help much appreciated!!