They can be wired normally open no or normally closed nc.
High pressure limit switch.
They are often used in pump and hydraulic power applications.
However they are commonly found on heat pumps.
Shorter and thinner than other safety limit switches these are sized to fit tight spaces.
In the case of a heat pump in cooling mode the high pressure switch is used to make sure that outdoor unit can reject heat with the outside air.
High and low pressure switches may be installed on the refrigerant tubing of some air conditioning systems.
Compact safety limit switches.
This pressure will be based on specifications for maximum pressure for the refrigeration systems high side and the type of refrigerant used.
It s also known as a fan limit switch or simply a limit switch.
Long distance light beam.
The key is to protect the compressor from extremely high pressures that could damage.
Designed for high pressure applications these switches electrically activate automated controls or alarms when a set pressure is reached.
Standardized limit switches are industrial control components manufactured with a variety of operator types including lever roller plunger and whisker type.
Limit switch is a switch operated by the motion of a machine part or presence of an object they are used for control of a machine as safety interlocks or to count objects passing a point.
The high temperature limit switch is an important device used in forced air furnaces powered by gas or heating oil.
The switch makes sure the furnace is operating safely and at its desired settings.