Omron, A22 Series

• Lever for easily mounting and removing the Switch Unit

• Finger protection mechanism on Switch Unit provided as a standard feature.

• Use 25-dia. ring to install in 25-dia. panel cutouts.

• Mounted using either open-type (fork-type) or closed-type (round-type) crimp terminals.

• IP65 oil resistance (non-lighted models)

IP65 (lighted models)

Ratings

Contacts (Standard Load)

Contacts (Standard Load)	Rated voltage	Rated current (A)
Contacts (Standard Load)	Rated voltage	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	8 mA	200 VAC (190 to 230 V)	LED Lamp (A22-24A[])

Characteristics

Type		Pushbutton Switches		Knob-type Selector Switches		Key-type Selector Switch	Indicator
Type		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.			---
Allowable operating frequency	Electrical	30 operations/minute max.					---
Insulation resistance		100 MΩ min. (at 500 VDC)
Contact resistance	Standard load	100 mΩ max. (initial value)
Contact resistance	Microload	100 mΩ max. (initial value)
Dielectric strength	Between terminals of same polarity	2,500VAC, 50/60Hz for 1min
Dielectric strength	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.
Shock resistance	*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.	---
Durability	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.

Lighted/Non-lighted Pushbutton Switches (The following illustrations are for momentary operation.)

Flat Type/A22-F

Half-guard Type/A22-H/A22L-H

Projection Type/A22-T/A22L-T

Full-guard Type/A22-G/A22L-G

40-dia. Mushroom Type/A22-M

Square/Projection type/A22-C/A22L-C

Square/Full-guard Type/A22-D/A22L-D

Note: Lighted models have the same dimensions as shown above, whether they are with or without Voltage Reduction Units.
* Alternate operation models are 9.3 mm longer.

Terminal Arrangement (Bottom View)

Terminal Connection

Panel Cutouts

Lock ring is provided as a standard item.

• When applying coating such as paint to the panel, the dimensions should be those after the application of coating.
•Recommended panel thickness: 1 to 5 mm.
•Use an A22Z-R25 Ring when mounting to a panel with 25-mm holes.