Limit Switches Manufacturers

Limit switches are used to monitor movement. They indicate when a device has reached the end of movement. They are open/closed switches. Limit switches are often combined in the same sensor and box as the fan control switch. The two are commonly referred to as fan/limit switch. This is the switch with two distinct functions. The first is to turn the switch on and off; the second is to control the high temperature limit. The limit switch will shut off the burner when the temperature gets too high.