mec . Industriparken 23 . P.o. Box 26 . DK-2750 Ballerup . Denmark

Tel.: +45 44 97 33 66 . Fax: +45 44 68 15 14 . Web: www.mec.dk. . E-mail: danmec@mec.dk

33

PCB Mounting Hole

Circuit diagram

PCB Mounting hole

Functional diagram

Dimensions

Dimensions

Basic Switch

(w/Extender 16250)

Without LED

With round LED

With rect. LED

With LED

––– up

16920 and 16921

16922

16923 and 16924

---- down

Wiring Diagram

Select the contact function you desire - and design your PC board accordingly

Operating Force

1 make

1 break

1 change

2 make

2 break

2 change

2 make and

reverse

contact

contact

over contact

contacts

contacts

over

2 break

polarity

contacts

basic switch modules

12.6

12.6

3.3

12.6

2.54

Ø= 0.9

21

43

65

87

21

43

65

87

+

+

-

-

-

-

+

+

21

43

65

87

-

+

+

-

21

43

65

87

3.0

21

43

65

87

15

Part no.

Temperature:

5: low temp.

4: high temp.

Switch function:

0: momentary

5: alternate

Terminal:

1: silver

2: gold

0: quiet version, silver

Standard stock items: 15501 - 15551

Other versions: 15401 - 15451 - 15452 - 15502 - 15552 - 15500

Base module applies to all versions

( Typical example )

Moving contacts

Housing

Key spring

Fixed terminals

Key actuator

How to assemble

unimec

15XXX + 16300 +

16310

unimec

15XXX + 16270 +

16300 + 16324

012

3

3

2

1

0

4

Force (N)

Travel (mm)