A Series
General Purpose Snap-acting Switches
Features/Benefits
Typical Applications
•
•
•
•
Low cost—high performance
Long electrical life
•
•
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Enclosure equipment
Garage door openers
Vending machines
Single and double pole
Sealed actuator option available
Specifications
Materials
CONTACT RATING: From low level* to 25 AMPS @ 277 V AC.
SWITCH HOUSING: Heat resistant phenolic (UL 94V-0).
ACTUATOR BUTTON: Heat resistant phenolic (UL 94V-0).
SPRING: Copper alloy.
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.
PIVOT: Brass alloy for models up to 15 AMPS.
Copper for 25 AMP models.
DIELECTRIC STRENGTH: 1,000 Vrms min. @ sea level.
OPERATING TEMPERATURE: –67ºF to 185ºF (–55ºC to 85ºC).
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.
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
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.
* Low Level=conditions where no arcing occurs during switching, i.e., 0.4 VA max. @
20 V AC or DC max.
J
TERMINALS: Brass alloy for 1 AMP up to 15 AMPS.
Copper alloy for 25 AMPS.
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
D
SP
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;
Actuator
3/4 HP, 125 V AC; 1 1/2 HP, 250 V AC P0 Pin plunger
F3 25 A, 125, 250 V AC; 1 HP, 125 V Ac; T0 Lever
2 HP, 250 V AC; 2 A, 24 V DC
A0 Lever roller
F5 1 A, 125 V AC, 3O V DC
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.
ST N.O.
Y
Dimensions are shown: Inch (mm)
Specifications and dimensions subject to change
14 Jan 19
www.ckswitches.com
J–81