SWITCHES
AND THEIR TYPES
Presented by:
Aashir Ali (14-EE-06)
Nouman Munir (14-EE-38)
Zahad Ali Zafar (14-EE-54)
Junaid Hassan (14-EE-110)
Muhammad Ali (14-EE-142)
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Switches, Study notes of Electrical Engineering
Different types of switches and their working
Typology: Study notes
2014/2015
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SWITCHES
AND THEIR TYPES
Presented by: Aashir Ali (14-EE-06) Nouman Munir (14-EE-38) Zahad Ali Zafar (14-EE-54) Junaid Hassan (14-EE-110) Muhammad Ali (14-EE-142)
Basic Switch Function
- (^) To open and close a circuit
- (^) Open (no connection)
- (^) Closed (connection)
- (^) Control device
- (^) Does not consume power
SINGLE POLE SINGLE THROW
- (^) SPST
- (^) 1 pole, 1 throw
- (^) Example- room lights
SPST ANIMATION
SPDT ANIMATION
DOUBLE POLE SINGLE THROW
- (^) DPST
- (^) Both armatures make contact at same time- one closed position
DOUBLE POLE DOUBLE THROW
- (^) DPDT
- (^) Changeover Switch
- (^) 2 poles
- (^) 2 separate closed positions
TRIPLE POLE SINGLE THROW
- (^) TPST
- (^) Three poles, single throw
- (^) ON/OFF three sources of current
TPDT ANIMATION
SWITCH STYLES TOGGLE SLIDE
SWITCH STYLES ROTARIES DIP ROTARIES
SWITCH STYLES KEYLOCKS PADDLES
PUSH BUTTON NORMALLY OPEN
- (^) Push Button Normally Open
- (^) PBNO
- (^) Red in color
PBNO