Page top

A22

Pushbutton Switch (Cylindrical 22/25-dia.)

A22

Install in 22-dia. or 25-dia. Panel Cutout (When Using a Ring)

Ratings

Contacts (Standard Load)

Contacts
(Standard Load)
Rated voltage Rated current (A)
Inductive load Resistive load Inductive load Resistive load
10A 24 VAC 10 10 --- ---
110 VAC 5 10
220 VAC 3 6
380 VAC 2 3
440 VAC 1 2
24 VDC --- --- 1.5 10
110 VDC 0.5 2
220 VDC 0.2 0.6
380 VDC 0.1 0.2
Note: 1. The above ratings were obtained by conducting tests under the following conditions.
                (1) Ambient temperature: 20±2°C
                (2) Ambient humidity: 65±5% RH
                (3) Operating frequency: 20 operations/minute
          2. Minimum applicable load: 10 mA at 5 VDC

Contacts (Microload)

Rated applicable load 50 mA at 24 VDC (Resistive load)
Minimum applicable load 1 mA at 5 VDC

LED Indicators

Rated voltage Rated current Operating voltage
6 VAC/VDC 8 mA 6 VAC/VDC ± 5%
12 VAC/VDC 12 VAC/VDC ± 5%
24 VAC/VDC 24 VAC/VDC ± 5%

Incandescent Lamp

Rated voltage Rated current Operating voltage
6 VAC/VDC 200 mA 5 VAC/VDC
14 VAC/VDC 80 mA 12 VAC/VDC
28 VAC/VDC 40 mA 24 VAC/VDC

Voltage-reduction Lighting

Rated voltage Rated current Operating voltage Applicable lamp (BA9S/Base: 13)
110 VAC 8 mA 100 VAC (95 to 115 V) LED Lamp (A22-24A[])
220 VAC 200 VAC (190 to 230 V)

Characteristics

Type Pushbutton Switches Knob-type Selector Switches Key-type
Selector
Switch
Indicator
Non-lighted
models:
A22-F A22-T
A22-G A22-H
A22-S A22-M
A22-C A22-D
Lighted
models:
A22L-T
A22L-G
A22L-H
A22L-C
A22L-D
Non-lighted
model:
A22S
Lighted
model:
A22W
Non-lighted
model:
A22K
M22
Allowable
operating
frequency
Mechanical Momentary operation:
60 operations/minute max.
Manual reset: 30 operations/minute max.
Automatic reset: 30 operations/minute max.
---
Electrical 30 operations/minute max. ---
Insulation resistance 100 MΩ min. (at 500 VDC)
Contact
resistance
Standard load 100 mΩ max. (initial value)
Microload 100 mΩ max. (initial value)
Dielectric
strength
Between
terminals of
same polarity
2,500VAC, 50/60Hz for 1min
Between each
terminal and
ground
2,500VAC, 50/60Hz for 1min
Vibration
resistance
Malfunction *1 Malfunction *2: 10 to 55 Hz, 1.5-mm double amplitude
Shock
resistance
Destruction 1,000 m/s2 max. 1,000 m/s2
max.
1,000 m/s2 max. 1,000 m/s2
max.
1,000 m/s2
max.
1,000 m/s2
max.
Malfunction *1 1,000 m/s2 max. 600 m/s2 max. 1,000 m/s2 max. 600 m/s2 max. 1000 m/s2 max. 600 m/s2 max.
Durability Mechanical Momentary operation:
5,000,000 operations min.
500,000
operations min.
100,000
operations min.
500,000
operations min.
---
Electrical 500,000 operations min. 500,000
operations min.
100,000
operations min.
500,000
operations min.
---
Ambient operating
temperature *2
-20 °C
to 70 °C
-20 °C
to 55 °C
-20 °C
to 70 °C
-20 °C
to 55 °C
-20 °C
to 70 °C
-20 °C
to 55 °C
Ambient operating
humidity
35% to 85% RH
Ambient storage
temperature *2
-40 °C to 70 °C
Degree of protection *3 IP65
(oil-resistant)
IP65 IP65
(oil-resistant)
IP65 IP65
(oil-resistant)
IP65
Electric shock protection
class
Class II
PTI
(tracking characteristic)
175
Degree of contamination 3 (IEC947-5-1)
*1. Malfunction within 1 ms.
*2. With no icing or condensation.
*3. Degree of protection from the front of the panel.

Operating Characteristics (for SPST-NO/SPST-NC)

Type Pushbutton Switches Knob-type Selector Key-type Selector Switch
Lighted Nonlighted
Pushbutton Switches
Manual reset Automatic reset Manual reset Automatic reset
A22- F A22-T
A22-G A22-H
A22-C A22-D
A22-S A22-M
A22L-T A22L-G
A22L-H A22L-C
A22L- D
A22S
A22W
A22K
Total travel force
(TTF) max.
29.4 N 0.34 Nm* 0.25 Nm for two notches *
0.34 Nm for three notches *
0.34 Nm* 0.25 Nm for two notches *
0.34 Nm for three notches *
Total travel (TT) 5.5 mm max. Approx. 90 ° for two notches
(Approx. 45 ° for three notches)
Approx. 90 ° for two notches
(Approx. 45 ° for three notches)
Resetting force
(RF) min.
--- 0.34 Nm max. * --- 0.34 Nm max. * ---
* Rotation torque for Knob-type Selector and Key-type Selector Switches.