Quote:
Originally posted by airspirit
Somebody finally knows what the damned abbreviations mean! I've always wondered ... that might make it easier to remember. And yes, that last switch is available at the Rat Hack as a "125VAC" switch ... it costs 5x as much, though, but its convenient, I suppose.
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He he...
SPST single pole single toggle
two pins, and the switch lever (or button) makes them either on or off.
SPDT single pole double toggle
3 pins, and the lever makes the middle one (usually) contact either one.
DPST
(4 pins) same as SPST, it's like a double switch, but with only one lever.
DPDP double pole double toggle
(6 pins) same as SPDT, like a double switch.