1. JC Technology
Components

2. Switches
Mechanical Switches
Rocker
Toggle
Push
Microswitch
Slide

3. Switches Type of Switch Symbol Single Pole Single Throw (SPST)
Single Pole Double Throw (SPDT)
Double Pole Single Throw (DPST)
Double Pole Double Throw (DPDT)

4. Switches Single Pole Single Throw (SPST) On/off switch
Controls one circuit

5. Switches
Single Pole Single Throw (SPST)
Push-to-Make

6. Switches
Single Pole Single Throw (SPST)
Push-to-Break

7. Switches Single Pole Double Throw (SPDT) Controls two circuits
Never on or off at same time

8. Switches
Single Pole Double Throw (SPDT)
Two-way switching

9. Switches Double Pole Single Throw (DPST) Two SPST switches
Separate electrical circuits
Mechanically linked
Two circuits on/off at same time

10. Switches Double Pole Double Throw (DPDT) Two SPDT switches
Separate electrical circuits
Mechanically linked

11. Switches Double Pole Double Throw (DPDT)
Forward and reverse motion of motor

12. Switches
Double Pole Double Throw (DPDT)
Motor with limit switches

13. Switches Double Pole Double Throw (DPDT)
Current flow through mechanical switch

14. Switches
Microswitch
Normally Open (N0)
Circuit off and switched on

15. Switches
Microswitch
Normally Closed (NC)
Circuit on and switched off