ivsenroute
Senior Member
- Location
- Florida
If my design calls for use of such a device, then my plans will show (perhaps by way of a table, perhaps by way of a note) the position I want the contact be be in, when the mechanical equipment is in a given condition. If, for example, a contact is to be open when tank water level is within its normal range, and if it is to close when tank water level is low, you will see something on my drawing that makes that clear.
This is what I have always worked with and expected. We always need switch positions clarified depending on how they are installed and under what conditions.