throw pole throw pole nc no. electric symbols single pole single throw normally open single pole...
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Throw
Throw
Pole
Throw
Throw
Pole
nc
nc
no
no
Electric symbols
Single pole single throw normally open
Single pole single throw normally closed
double pole single throw normally open
single pole double throw
double pole double throw
Electric symbols
Alternate single pole double throw
Normally closed circuit breaker
Heating thermostat opens on drop of temp
Cooling thermostat opens on rise of temp
Electric symbols
Pressure switch opens on rise in pressure
Pressure switch opens on drop in pressure
Humidistat opens on rise in humidity
Timer switch closes on time delay
Electric symbols
Heater
Light
Solenoid
Alternate solenoid
2d alternate solenoid
Contactor single pole
Electric symbols
Contactor double pole
Step up or step down transformer
Overload
Electric symbols
common
Run
start
Split phase motor
L1 Neutral
LoadSwitch