New on forum. Hello! Maintenance Man at aluminum die-casting and machining plant...I work in machine shop as maintenance. Anyhow...got a question and looking at alot of posts...I feel like a Ratard. I have a thermal overload, and its got all the ordinary stuff with a additional that is set to positions "A" or "H". Set at H the overload kicks (1.18 amps drawn and overload set at 1.8) and set at A it doesn't trip. Curious as to what this is....I'm sure I'll have more questions to come.