M-8
Dimensions are shown: IN (mm)
Dimensions subject to change
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C&K 3 Series
Thumbwheel Switches
M
Thumbwheel & Pushwheel
Features/Benefits
•Most complete product offering in the industry
•Spacers available to fit most panel cutouts
•Front or rear mounting options
•Illuminated models available
Typical Applications
•Test & measurement equipment
•Industrial equipment
•Computer devices
Specifications
CONTACT RATING:
CARRY: 1 AMP continuous.
SWITCH: 100 mA max.
OPERATING VOLTAGE: 50 mV to 28 V DC or 120 V AC.
ELECTRICAL LIFE: 100,000 actuations.
CONTACT RESISTANCE: Below 100 m Ωtyp. initial @
2-4 V DC, 100 mA.
INSULATION RESISTANCE: 109Ωmin.
DIELECTRIC STRENGTH: 500 Vrms min. @ sea level
between common terminal and any output.
OPERATING TEMPERATURE: -10ºC to 65ºC.
Materials
HOUSING: ABS plastic.
THUMBWHEEL: ABS plastic.
ROTOR CONTACTS: Precious metal on copper alloy.
STATOR CONTACTS: Hard gold over nickel over copper
on epoxy fiberglass.
NOTE: Specifications and materials listed above are for switches with standard options
For information on specific and custom switches, consult Customer Service Center.
Build-A-Switch
To order, simply select desired option from each category and place in the appropriate box. Available options are shown and
described on pages M-9 thru M-12. For additional options not shown in catalog, consult Customer Service Center.
Consult factory for illumination availability.
Series
3(STD .) Thumbwheel switch
Number of Sections
0Switch section
11 Switch section
22 Switch sections
33 Switch sections
44 Switch sections
55 Switch sections
66 Switch sections
77 Switch sections
88 Switch sections
9More than 8
switch sections
Seal
0(STD.) No seal
1Sealed contacts
2Dust lens
3Sealed contacts & dust lens
Function Code
11 Decimal, SP,10 position
14 Resistor decade
21 BCD, 10 position
23 Complement of BCD, 10 position
27 BCD, 10 position
31 BCD, 10 position
71 BCH, 16 position
Terminations
0(STD .) Type 0
1Type 1, extended type 0
3Type 0 with solder pins
BType 6 with solder pins
Color/Marking/Stops
0(STD.) Matte black body,
gloss black wheel,
white marking
Mounting Style
00 Snap-in, front mount
09 Snap-in, front mount*
10 Rear mount
19 Rear mount*
20 Rear mount
29 Rear mount*
*X9 mounting styles must be ordered with ‘0’ number of sections.