New Products
Lighted Pushbutton Switch (Square) Ultra Bright LED Type
A3S
Pushbutton Switch Series with Square
40-mm Body.
New models added with Ultra LEDs.
• New models with ultra bright LEDs added to single-screen
models.
• Previous models not changed.
Line up of models in seven colors (the previous red, orange,
green, and white models, and the new yellow, blue, and pure
white models).
Refer to
Safety Precautions for All Pushbutton Switches/In-
dicators
and
Safety Precautions
in the A3S datasheet.
List of Models
Lighted Pushbutton Switches
Appearance
Mode
Rectangular
A3SJ
Square
A3SA
1
A3S
Ordering Information
Ordering as a Set
.................The model numbers used to order sets of Units are given in the following tables. One set comprises the
Operation Unit, Lamp, and Socket Unit.
Rectangular Models
A3SJ
Operation
Contact type
No. of
outputs
SPDT
Standard
Loads
DPDT
Lighting
method
Case color
Momentary operation
(Self-resetting)
A3SJ-90A1-05S(1)
A3SJ-90A1-12S(1)
A3SJ-90A1-24S(1)
A3SJ-90C1-05S(1)
A3SJ-90C1-12S(1)
A3SJ-90C1-24S(1)
A3SJ-90E1-05S(1)
A3SJ-90E1-12S(1)
A3SJ-90E1-24S(1)
A3SJ-90G1-05S(1)
A3SJ-90G1-12S(1)
A3SJ-90G1-24S(1)
Alternate operation
(Self-holding)
A3SJ-90B1-05S(1)
A3SJ-90B1-12S(1)
A3SJ-90B1-24S(1)
A3SJ-90D1-05S(1)
A3SJ-90D1-12S(1)
A3SJ-90D1-24S(1)
−
−
−
−
−
−
Pushbutton color symbol
SPDT
Microloads
DPDT
5 VDC
12 VAC/DC
24 VAC/DC
5 VDC
12 VAC/DC
24 VAC/DC
LED lamp
5 VDC
12 VAC/DC
24 VAC/DC
5 VDC
12 VAC/DC
24 VAC/DC
R, O, G, W, Y, A, or PW
Note: Enter the desired color symbol for the Pushbutton in (1). (R) = Red, (O) = Orange, (G) = Green, (W) = White, (Y) = Yellow, (A) = Blue, (PW) = Pure White.
Example: Red A3SJ-90A1-24S R
Square Models
A3SA
Operation
Contact type
No. of
outputs
SPDT
Standard
Loads
DPDT
Lighting
method
Case color
Momentary operation
(Self-resetting)
A3SA-90A1-05S(1)
A3SA-90A1-12S(1)
A3SA-90A1-24S(1)
A3SA-90C1-05S(1)
A3SA-90C1-12S(1)
A3SA-90C1-24S(1)
A3SA-90E1-05S(1)
A3SA-90E1-12S(1)
A3SA-90E1-24S(1)
A3SA-90G1-05S(1)
A3SA-90G1-12S(1)
A3SA-90G1-24S(1)
Alternate operation
(Self-holding)
A3SA-90B1-05S(1)
A3SA-90B1-12S(1)
A3SA-90B1-24S(1)
A3SA-90D1-05S(1)
A3SA-90D1-12S(1)
A3SA-90D1-24S(1)
−
−
−
−
−
−
Pushbutton color symbol
SPDT
Microloads
DPDT
5 VDC
12 VAC/DC
24 VAC/DC
5 VDC
12 VAC/DC
24 VAC/DC
LED lamp
5 VDC
12 VAC/DC
24 VAC/DC
5 VDC
12 VAC/DC
24 VAC/DC
R, O, G, W, Y, A, or PW
Note: Enter the desired color symbol for the Pushbutton in (1). (R) = Red, (O) = Orange, (G) = Green, (W) = White, (Y) = Yellow, (A) = Blue, (PW) = Pure White.
Example: Red A3SA-90A1-24S R
Accessories and Tools
The accessories and tools are the same as those for the A3S. Refer to the A3S datasheet.
3
A3S
Specifications
Approved Standard Ratings
UL (File No. E41515), CSA (File No. LR45258)
Standard Load:
Microload:
3 A at 125 VAC
2 A at 250 VAC
0.1 A at 125 VAC
0.1 A at 30 VDC
Characteristics
Operating Mechanical
frequency
Electrical
Insulation resistance
Standard load
Contact
resistance Microload
Between terminals
of same polarity
Between terminals
of different polarity
Between current-
Dielectric carrying metal part
strength
and ground
Between each terminal
and non-current-
carrying metal part
Between lamp
terminals
Vibration
Malfunction
resistance
Destruction
Shock
resistance Malfunction
Momentary operation models: 120
operations/min max. *1
20 operations/min max.
100 MΩ min. (at 500 VDC)
50 mΩ max. (initial value)
50 mΩ max. (initial value)
1,000 VAC, 50/60 Hz for 1 minute
2,000 VAC, 50/60 Hz for 1 minute
2,000 VAC, 50/60 Hz for 1 minute
Note:
Certification has been obtained for the Switch Unit.
For detailed information on individual products that have
received certification, consult your supplier.
Ratings
For Standard Loads
Non-inductive load (A)
Inductive load (A)
Rated
Resistive
Inductive
Lamp load
Motor load
voltage
load
load
NC NO NC NO NC NO NC NO
125 VAC
3
1
0.7
2
1.5
1
250 VAC
2
0.7
0.5
1.5
1
0.7
8 VDC
3
1
2
1.5
14 VDC
3
1
1.5
1.5
30 VDC
2
1
1.5
1
125 VDC
0.4
0.05
0.4
0.05
250 VDC
0.2
0.03
0.2
0.03
Note: 1.
The above values are for steady-state currents.
2.
Inductive load: Power factor = 0.4; time constant = 7 ms.
3.
The lamp load has an inrush current of 10 times the steady-
state current.
4.
The motor load has an inrush current of 6 times the steady-
state current.
The rated values are for testing conducted under the following
conditions.
(1) Ambient temperature: 20±2°C
(2) Ambient humidity: 65%
±5%RH
(3) Operating frequency: 20 times/min
2,000 VAC, 50/60 Hz for 1 minute
For Microloads
Rating
0.1 A at 30 VDC (resistive load);
0.1 A at 125 VAC (resistive load)
Minimum
1 mA at 5 VDC
applicable load
LED Lamp
Applied
voltage
5 VDC±5%
12 VAC/VDC±5%
24 VAC/VDC±5%
Rated
voltage
5 VDC
12 VAC/VDC
24 VAC/VDC
Rated
current
8 mA
1,000 VAC, 50/60 Hz for 1 minute
*2
10 to 55 Hz, 1.5-mm double
amplitude *3
500 m/s
2
max.
200 m/s
2
max. *3
Momentary operation models:
1,000,000 operations min.
Alternate operation models:
Life
Mechanical
100,000 operations min.
expect-
(One operation consists of set and
ancy
reset operations.)
Electrical
100,000 operations min. (rated load)
Weight
Approx. 10 g
NC
Standard load: 10 A max.
Inrush
current NO
Standard load: 10 A max.
Ambient operating
−10
to 50°C
temperature
(with no icing or condensation)
Ambient operating humidity
35% to 85% RH
−25
to 65°C
Ambient storage temperature
(with no icing or condensation)
Degree of protection
IP00
Electric shock protection class
Class II
PTI (proof tracking index)
175
Pollution degree
3 (IEC 60947-5-1)
*1. With alternate operation models, 60 operations/min max. One operation
cycle consists of set and reset operations.
*2. With no incandescent lamp or LED lamp mounted.
*3. Malfunction : 1 ms max.
Operating Characteristics
Operation
Operating
characteristics
Operating force
Releasing force
Total travel
Pretravel
Lock travel
alternate
Momentary
Alternate
operation models operation models
3.92 N
0.49 N
Approx. 3 mm
2.2 mm
−
4.90 N
0.294 N
Approx. 3 mm
2.2 mm
0.5 mm
OF max.
RF min.
TT
PT max.
LTA min.
Contact Form
Name
Double-throw contacts
COM
NO
Contact Form
NC
4
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