A Series
General Purpose Snap-acting Switches
Features/Benefits
• Low cost—high performance
• Long electrical life
• Single and double pole
• Sealed actuator option available
Typical Applications
• Enclosure equipment
• Garage door openers
• Vending machines
Materials
CONTACT RATING: From low level* to 25 AMPS @ 277 V AC.
ELECTRICAL LIFE: 75,000 cycles at 25 AMPS @ 250 V AC,
200,000 cycles at 15 AMPS @ 250 V AC.
INSULATION RESISTANCE: 1,000 M ohm min.
DIELECTRIC STRENGTH: 1,000 Vrms min. @ sea level.
OPERATING TEMPERATURE: –67ºF to 185ºF (–55ºC to 85ºC).
OPERATING FORCE: 20 oz. (567 grams) max. SP models.
40 oz. (1134 grams) max. DP models at actuator button.
MOUNTING: Torque screws 3 in/lbs max.
MOUNTING NUT: 20 in/lbs max. torque
SWITCH HOUSING: Heat resistant phenolic (UL 94V-0).
ACTUATOR BUTTON: Heat resistant phenolic (UL 94V-0).
SPRING: Copper alloy.
PIVOT: Brass alloy for models up to 15 AMPS.
Copper for 25 AMP models.
MOVABLE CONTACTS: Gold alloy for ratings 1 AMP or less.
Fine silver for ratings up to 15 AMPS. Silver alloy
for ratings of 25 AMPS.
STATIONARY CONTACTS: Gold alloy on brass base alloy
for ratings 1 AMP or less. Fine silver welded on brass base
alloy for ratings greater than 1 AMP up to 15 AMPS.
Fine silver welded on copper alloy for ratings 25 AMPS.
TERMINALS: Brass alloy for 1 AMP up to 15 AMPS.
Copper alloy for 25 AMPS.
* Low Level=conditions where no arcing occurs during switching, i.e., 0.4 VA max. @
20 V AC or DC max.
NOTE: Specifications and materials listed above are for switches with standard options.
C&K does provide specific and custom switches at 30 AMPS @ 277 VAC. Please 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 J-78 through J-81. For additional options not shown in catalog, consult Customer Service Center.
A
4
A
Series
A General Purpose Snap-acting Switches
No. Poles
S SP
D DP
Operating Force
KH* 20 oz./567 grams
PD** 30 oz./850 grams
GG* 5 oz./142 grams
PF**40 oz./1134 grams
Electrical Rating
C2 15 A, 125, 25O V AC;
3/4 HP, 125 V AC; 1 1/2 HP, 250 V AC
F3 25 A, 125, 250 V AC; 1 HP, 125 V Ac;
2 HP, 250 V AC; 2 A, 24 V DC
F5 1 A, 125 V AC, 3O V DC
Actuator
P0 Pin plunger
T0 Lever
A0 Lever roller
A2 Lever roller, high force
BB Large red button
B1 Large black button
J0 High overtravel plunger
L0 Leaf
Q0 High operating position plunger
W0 Leaf roller
Terminations
4A .250” quick connect
* Single Pole
** Double Pole
Circuitry
C DT
W ST N.C.
Y ST N.O.
Dimensions are shown: Inch (mm)
Specifications and dimensions subject to change
14 Jan 19
J–81
www.ckswitches.com
J
Snap-acting
Specifications
A Series
General Purpose Snap-acting Switches
SERIES
A GENERAL PURPOSE SNAP-ACTING SWITCHES
NO. POLES
S SINGLE POLE SWITCH
Snap-acting
J
Mounting holes will accept pins or screws
of .139 dia. (3,53) max., on 1.000 (25,40) centers.
D DOUBLE POLE SWITCH
Mounting holes will accept pins or screws
of .139 dia. (3,53) max., on 1.000 (25,40) centers.
NOTE: To select switching function, see CIRCUITRY section, page J-81.
.
Dimensions are shown: Inches (mm)
Specifications and dimensions subject to change
14 Jan 19
J–82
www.ckswitches.com
A Series
General Purpose Snap-acting Switches
OPERATING FORCE
OPTION CODE
NO.
POLES
BASIC SWITCH
OPERATING FORCE
(OZ./GRAMS)
KH
SP
20
567
PD
DP
30
850
GG
SP
5
142
PF
DP
40
1134
NOTE: Operating force varies with actuator, see ACTUATOR option section.
ELECTRICAL RATING
J
CONTACT MATERIAL
MOVABLE CONTACT
STATIONARY CONTACT
ELECTRICAL RATING
C2
Fine silver.
Fine silver welded on brass
base alloy.
15 AMPS @ 125 & 250 V AC; 3/4 HP @ 125 V AC;
1-1/2 HP @ 250 V AC.
F3
Silver alloy.
Silver welded on copper
base alloy.
25 AMPS @ 125 & 250 V AC; 1 HP @ 125 V AC;
2 HP @ 250 V AC; 2 AMPS @ 24 V DC.
F5
Gold alloy.
Gold alloy on brass base
alloy.
From low level* to 1 AMP @ 125 V AC, 30 V DC.
All models
Contact Customer Service Center for availability and delivery of nonstandard ratings.
with all options.
* Low Level=conditions where no arcing occurs during switching,
i.e., 0.4 VA max. @ 20 V AC or DC max.
* Note: See Technical Data section of this catalog for RoHS compliant and compatible definition and specifications.
AVAILABLE COMBINATIONS
OPERATING FORCE
(OZ./GRAMS)
ELECTRICAL
RATING
GG
5
142
KH
20
567
PD
30
850
PF
40
1134
C2
•
•
•
•
F3
x
•
•
•
F5
•
•
•
•
• AVAILABLE
x NOT AVAILABLE
Dimensions are shown: Inch (mm)
Specifications and dimensions subject to change
14 Jan 19
J–83
www.ckswitches.com
Snap-acting
OPTION CODE
A Series
General Purpose Snap-acting Switches
ACTUATOR
A
OPTION
CODE
FIG.
DIM. A
DIM. B
P0
1
.50
(12,7)
.285 ± .030
(7,24 ± 0,76)
—
A0
3
1.38
(35,1)
.718 ± .062
(18,24 ± 1,57)
.375 dia.
(9,53Ø)
A2
4
1.25
(31,8)
.718 ± .062
(18,24 ± 1,57)
.375 dia.
(9,53Ø)
B1
6
1.50
(38,1)
.40 ± 0.1
(10,2 ± 2.54)
BB
6
1.50
(38,1)
J0
5
L0
DIM. E
DIM. F
—
—
—
.50
(12,7)
.50
(12,7)
—
.50
(12,7)
—
—
.98 dia.
(24,9Ø)
—
—
—
.40 ± 0.1
(10,2 ± 2.54)
.98 dia.
(24,9Ø)
—
—
—
.50
(12,7)
.810 ± .030
(20,6 ± 0,8)
.38
(9,7)
.25 dia.
(6,4Ø)
—
—
2
1.62
(41,1)
.312 ± .062
(17,92 ± 1,57)
.50
(12,7)
—
—
—
Q0
5
.50
(12,7)
.670 ± .030
(17,02 ± 0,76)
.38
(9,6)
.25 dia.
(6,4Ø)
—
—
T0
7
1.50
(38,1)
.318 ± .062
(8,08 ± 1,57)
.50
(12,7)
.50
(12,7)
—
—
W0
8
1.50
(38,1)
.801 ± .062
(20,34 ± 1,57)
.375 dia.
(9,53ø)
.50
(12,7)
—
—
J
DIM. C
B
FIG. 1
High Overtravel Plunger
NOTE: The “H0” high overtravel plunger option
provides .100 (2,54) min. overtravel and longer
mechanical life (1,000,000 operations typical).
A
C
B
FIG. 2
Leaf
C
A
C
A
E
D
Snap-acting
E
DIM. D
D
F
B
FIG. 3
Lever Roller
B
FIG. 4
Lever roller (High Force)
A
PANEL MOUNTING
A
C
D
6-32 NC THD
2 places
B
C
FIG. 5
High Overtravel Plunger
B
PANEL MOUNTING
.322 .003
(8,18 0,08)
0.144 DIA. min
2 places
.380 ± .003
(9,65 ±
? 0,08)
FIG. 6
B1 – Black Button
BB – Red Button
Torque 20 in/lbs max. (Nut)
C
A
D
A
D
C
B
B
FIG. 8
Leaf Roller
FIG. 7
Lever
Dimensions are shown: Inch (mm)
Specifications and dimensions subject to change
14 Jan 19
J–84
www.ckswitches.com
A Series
General Purpose Snap-acting Switches
ACTUATOR
SWITCH CHARACTERISTICS
MAXIMUM OPERATING
FORCE (OZ./GRAMS)
MINIMUM RELEASE
FORCE (OZ./GRAMS)
MAXIMUM
PRETRAVEL
MINIMUM
OVERTRAVEL
OPERATING
POSITION
OPTION
CODE
GG KH
S.P. S.P.
PD PF
D.P D.P.
GG KH
S.P. S.P.
A0
1.5 4
42.5 113
6
10
170 283
0.3 0.5
8.5 14
1
28
.312
(7,92)
312
(7,92)
A2
1.5 4
42.5 113
6
10
170 283
0.4 0.5
11 14
1
28
.25
(6,4)
.14
(5,6)
B1
8 20 30 40 1 3
227 567 850 1134 28 85
6
170
.050
(1,27)
050
(1,27)
—
BB
8 20 30 40 1 3
227 567 850 1134 28 85
6
170
.050
(1,27)
.050
(1,27)
—
J0
5 20 30 40 1 3
142 567 850 1134 28 85
6
170
.050
(1,27)
.187
(4,75)
—
L0
3 12 18 22
85 340 510 624
0.5 1
14 28
2
56.7
.281
(7,14)
. 062
(1,57)
P0
8 20 30 40 1 3
227 567 850 1134 28 85
6
170
.050
(1,27)
.050
(1,27)
—
Q0
5 20 30 40 1 3
142 567 850 1134 28 85
6
170
.050
(1,27)
.050
(1,27)
—
PD PF GG KH
D.P D.P. S.P. S.P.
PD PF GG KH
D.P D.P. S.P. S.P.
PD PF GG KH
D.P D.P. S.P. S.P.
.187
(4,75)
PD PF
D.P D.P.
.718
(18,24)
.718
(18,24)
.312
(7,92)
6
10
170 283
0.3 0.5
8.5 14
1
28
.312
(7,92)
.187
(4,75)
312
(7,92)
W0
3 12 18 22
85 340 510 624
0.5 1
14 28
2
56.7
.281
(7,14)
.062
(1,57)
.718
(18,24)
NOTE: For basic switch operating forces, see page J-77.
TERMINATIONS
4A .250” QUICK CONNECT
NOTE: Terminals can be supplied at various angles. Other terminal styles can be supplied for
special applications. Consult Customer Service Center for special requirements.
Washer and nut ship with switch
CIRCUITRY
C DT (Double Throw, Normally Open & Normally Closed)
W ST N.C. (Single Throw, Normally Closed)
Y ST N.O. (Single Throw, Normally Open)
NOTE: To select number of poles, see NO. POLES section, page J-56
Dimensions are shown: Inches (mm)
Specifications and dimensions subject to change
14 Jan 19
J–85
www.ckswitches.com
J
Snap-acting
T0
1.5 4
42.5 113