How to Configure Your Float Switch: Normally Open Switches vs Normally Closed Switches
Deciding whether your float switch needs to be normally open or normally closed for pump control can be a little confusing. So we would like to clear things up.
When we say normally open or normally closed, we are referring to an electrical circuit. An open circuit is incomplete, meaning that the electric current is unable to complete the loop due to a gap. A closed circuit is complete with no gaps, enabling the current to travel through the whole loop.