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- Force (Contact):The force, holding closed contact together.
- Form A:A single pole, single throw, normally open contact or SPST NO.
- Form B:A single pole, single throw, normally closed contact or SPST NC.
- Form C:A single pole, double throw contact or SPDT.
- Form / Switch Form:Please refer to the ITW Switches Characteristics/Circuits for more detail.
- Form Z:A two circuit double break switch such as a Single Pole Double Throw Double Break switch.
- Free Position:The position of the button or toggle of a switch in its normal position. The free position is usually measured from the center of the mounting holes to the top of the button on a basic switch or from the top of the button to a reference point on a pushbutton switch.
- Gap:The shortest straight-line distance between two separate contacts.
- Gated:Restricted movement in XY axis only.
- Gold Flash:A plating of gold typically less than 10 micro-inches (millionths) thick. Used only as a barrier to oxidation or corrosion of terminals to maintain solderability.
- Ground:Used to indicate a negative side or ground side of a battery or electrical supply (ac or dc).
H48M SeriesDownload Datasheet- Hall Effect Sensor:An electronic device that changes state (voltage output) when exposed to a magnetic field.
- Header:The part of a switch that groups terminals or wires together to allow entry or exit.
- Heat Rise:An indirect measurement of a contact resistance used by rating agencies. The temperature rise of a contact carrying a prescribed current is measured to determine acceptable limit.