What type of switch is typically used to control water levels in condensate systems?

A normally open float switch is designed to control water levels in condensate systems by utilizing a floating mechanism that responds to the water level. When the water level rises to a certain point, the float triggers the switch to close, allowing an electrical circuit to complete and activate a pump or valve. This is crucial for maintaining proper water levels, preventing overflow or running the pump dry, which can lead to equipment damage.

In contrast, other types of switches, such as normally closed switches, limit switches, and pressure switches, do not function in the same way for this particular application. Normally closed switches would be open under normal conditions and would close only when a fault or specific condition is met, which does not suit the requirements for controlling water levels. Limit switches are often used for detecting the position of machinery or objects rather than fluid levels, while pressure switches monitor changes in pressure rather than physical water levels.