Making Sense of K Type Thermocouple Colours

Getting your head around k type thermocouple colours can be a bit of a headache if you're staring at a pile of wires from different manufacturers. You'd think there'd be one universal rule for the whole planet, but unfortunately, we've ended up with a few different standards depending on where you live or where your equipment was made. It's one of those things that seems simple until you're squinting at a tiny wire in a dark control panel trying to figure out if it's supposed to be positive or negative. ...

May 13, 2026 · 6 min · Tracy Nicholas