Switch: naming exercise and answer key, IEC style

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Switch: naming exercise, IEC style, sheet 1 of 2

  1. Fig. 1

    Name

    Meaning

  2. Fig. 2

    Name

    Meaning

  3. Fig. 3

    Name

    Meaning

  4. Fig. 4

    Name

    Meaning

  5. Fig. 5

    Name

    Meaning

Notes

  1. Write the name of each symbol, and what it shows, on its lines.
  2. Write the name of each terminal in its box.
  3. The answers are on sheet 2.
Name
Class
Date
Sheet
1 of 2
Drawing
Switch Naming exercise
Style
IEC style
From
circuitsymbols.com
Licence
CC BY 4.0

Switch: answer key, IEC style, sheet 2 of 2

  1. Fig. 1

    12

    Name Switch (SPST)

    A switch symbol stands for a contact that either completes or breaks a path.

  2. Fig. 2

    12

    Name Push button, normally open

    The momentary push buttons shown here change contact state while pressed and return to their drawn, unactuated state when released.

  3. Fig. 3

    12

    Name Push button, normally closed

    Switch contacts are drawn in their normal status: the position they rest in with no force applied. A normally-open (NO) contact is drawn open and a normally-closed (NC) contact closed; for a momentary push button, normal means not pressed.

  4. Fig. 4

    COM12

    Name Switch (SPDT)

    Poles count the separate circuits a switch controls; throws count the contact destinations available to each pole. An off position is not an additional throw.

  5. Fig. 5

    COM11A1BCOM22A2B

    Name Switch (DPDT)

    Poles count the separate circuits a switch controls; throws count the contact destinations available to each pole. An off position is not an additional throw.

Notes

  1. Answer key for sheet 1. The Fig. numbers match the exercise.
Name
Class
Date
Sheet
2 of 2
Drawing
Switch Answer key
Style
IEC style
From
circuitsymbols.com
Licence
CC BY 4.0