OMRON A2A dimension

last update: November 12, 2012

A2A

Note: 1. The Operation Unit can be inserted and removed.
           2. Unless specified, a tolerance of ± 0.8 mm applies for all dimensions.

Panel Cutouts

Note: Use a mounting panel thickness of 1 to 4 mm.

last update: November 12, 2012

OMRON A2A lineup

last update: September 24, 2012

Pushbutton color	Blue	Black	Green	Red	White	Yellow
Model	A2A-4A	A2A-4B	A2A-4G	A2A-4R	A2A-4W	A2A-4Y

Note: The face nut, lock washer, and operation unit are shipped separately from the body of the Switch. The A2A has
          solder terminals, SPDT contacts, and momentary operation.

last update: September 24, 2012

OMRON A2A specification

last update: September 24, 2012

Characteristics

Rating		5 A, 125 V (resistive load) 3 A, 250 V (resistive load)
Inrush current		NC: 20 A max. NO: 10 A max.
Contact resistance		50 mΩ max. (initial value)
Dielectric strength	Between terminals of same polarity	1,000 VAC, 50/60 Hz for 1 min
	Between current-carrying metal part and ground, and between each terminal and non-current-car-rying metal part	1,500 VAC, 50/60 Hz for 1 min
Durability	Mechanical	200,000 operations min.
	Electrical	200,000 operations min.
Ambient operating temperature		-25 to 80°C (with no icing or condensation)
Ambient operating humidity		45% to 85%RH
Degree of protection		IP00
Electric shock protection class		Class II
PTI (proof tracking index)		175
Pollution degree		3 (IEC 947-5-1)

Note: The rated values are from testing conducted under the following conditions:
           1) Ambient temperature: 20 ± 2°C
           2) Ambient humidity: 65% ± 5%RH
           3) Operating frequency: 20 operations/minute

Operating Characteristics

Model	A2A
Operating Characteristics
Operating force (OF), max. Releasing force (RF), min. Pretravel (PT), max. Total travel (TT), max.	1.47 N 0.10 N 0.8 mm 1.4 mm

• A D2S-5 is used for the built-in switch.

Contact Form

Name	Contact form
Double-throw contacts

last update: September 24, 2012

OMRON A2A catalog

• Catalog
• CAD

English

Global Edition

For ordering in Singapore, please note some product models not sold in Singapore may be included in the following catalog(s) for our global customers.

*It is recommended to select “Save” from the right-click due to large size of catalog PDF data.

Catalog Name	Catalog Number [size]	Last Update
A2A Data Sheet	- [273KB]	Dec 08, 201520151208	A2A Data Sheet

• NO. A2A
• TYPE:Push Buttons / Indicator Lamps Non-lighted Pushbutton Switch Copyright Statement
• DATE:2021-06-09
• Associated products:
  VAQ Pushbutton Switch (Cylindrical 10.5-dia.)/Features A3P (Super Luminosity Type) Lighted Pushbutton Switch (Square) Ultra Bright LED Type/Features