6 Terms
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Switches
Industry: Electronic components
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Switches
Movable contact
Electronic components; Switches
The contact moved by the switch actuator into and away from contact with a fixed contact thus forming the electrical circuits possible for a given device.
Normally open (NO)
Electronic components; Switches
Normally open contacts are open when the switch actuator is in its unactuated or resting position.
Oil-tight
Electronic components; Switches
A generic term for a panel seal commonly used in industrial settings. Defined by NEMA standard.
Moisture proof
Electronic components; Switches
Sealed switch will withstand high humidity and limited exterior environment such as rain.
Momentary action
Electronic components; Switches
Mechanically returning from a temporary switch position to the normal switch position
Operating temperature
Electronic components; Switches
The range of temperature within which the device may be used.
End of life criteria
Electronic components; Switches
Those specifications that a switch must meet at the end of its specified electrical life. Typically contact resistance and/or heat rise of contacts at full rated load at end of life.
