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A3C
Pushbutton Switch (Lighted/Non-Lighted) (Cylindrical 12-dia.)
Pushbutton Switch Series with
Cylindrical 20-mm × 12-dia. Body
• High-intensity uniform surface lighting.
• Round body enables easy hole making.
• Miniature size with excellent feeling of operation.
RoHS Compliant
Refer to Safety Precautions for All Pushbutton Switches and
Safety Precautions on page 12.
List of Models
Appearance
Rectangular
Models
Square
Models
Round
Models
■ Specifications: Refer to page 8. ■ Dimensions: Refer to page 10. ■ Accessories: Refer to page 7.
■ Precautions for correct use and safety precautions: Refer to page 12.
Model
A3CJ
A3CA
A3CT
CSM_A3C_DS_E_2_1
1
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Summary of Contents for Omron A3C Series
- Page 1 Pushbutton Switch (Lighted/Non-Lighted) (Cylindrical 12-dia.) CSM_A3C_DS_E_2_1 Pushbutton Switch Series with Cylindrical 20-mm × 12-dia. Body • High-intensity uniform surface lighting. • Round body enables easy hole making. • Miniature size with excellent feeling of operation. RoHS Compliant Refer to Safety Precautions for All Pushbutton Switches and Safety Precautions on page 12.
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Page 2: Model Number Legend
Model Number Legend ..........When placing your order, specify the individual component part model numbers of the Pushbutton, Lamp (lighted models only), and Switch, as listed in the ordering tables below. For information on combinations, refer to Ordering Information on page 3. (2) (3) (4) A 3 C J - 9 0 A 1 - 2 4 E R (5) Lighting... -
Page 3: Ordering Information
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 Pushbutton, Lamp (lighted models only), and Switch. Round Rectangular Square Models Models Models A3CJ A3CA A3CT Lighted Pushbutton Switches (SPST-NO+SPST-NC Solder Terminals) - Page 4 Ordering Information Illumination-only and Colored-illumination LED Models "Illumination only" describes LED models for which the screen color is the same whether the LED is lit or not. Example: Red LED Not lit Cap (red) Pushbutton Legend plate (milky white) Reflective plunger LED lamp (red) - - - Lamp "Colored illumination"...
- Page 5 Ordering Information Ordering Individually ....Pushbuttons, Lamps, and Switches can be ordered separately. Combinations that are not available as sets can be created using individual Units. Also, store the parts as spares for maintenance and repairs. Ordering: Specify a model number from the following page. LED Lamp Non-lighted Models Operation Unit...
- Page 6 Ordering Information Ordering Individually ....Pushbuttons, Lamps, and Switches can be ordered separately. Combinations that are not available as sets can be created using individual Units. Also, store the parts as spares for maintenance and repairs. Pushbuttons LED Lamp Non-lighted Models Square Round Square...
- Page 7 Ordering Information Accessories, Replacements, and Tools Accessories Name Appearance Classification Model Remarks Wire-wrap terminal A3C-4101 PCB terminal A3C-4102 Socket Cannot be used with Insulation Cover. Solder terminal A3C-4103 Insulation Cover A3C-3002 Cannot be used with Socket. For rectangular models A3CJ-5050 Switch Guard Cannot be used with Dust Cover.
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Page 8: Operating Characteristics
Approved Standard Ratings Characteristics UL (File No. E41515), CSA (File No. LR45258) Momentary-action models: 120 operations/minute max. Operat- Mechanical Alternate-action models: 60 operations/minute max. *1 Standard Load: 0.5 A at 250 VAC ing fre- quency 1 A at 125 VAC Electrical 20 operations/minute max. - Page 9 Nomenclature Model Structure Display Unit Structure Color cap (1) Shape of Pushbutton (2) Color of Pushbutton Legend Plate Pushbutton Reflective plunger (3) Type of Lamp Lamp Switch (4) Switch Specifications Note: The A3CJ model is shown here as a representative example. Type Specifications Shape of Pushbutton...
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Page 10: Terminal Connections
Dimensions (Unit: mm) Rectangular Models/A3CJ Square Models/A3CA Round Models/A3CT M12 × 1 M12 × 1 M12 × 1 11.8 14 dia. 11.8 dia. 11.8 11.8 26.5 26.5 15.7 26.5 Terminal Connections Terminal SPST-NO + SPST-NC Lighted and non-lighted models Terminal Arrangement (BOTTOM VIEW) t0.4 Lamp terminal... -
Page 11: Accessory Mounting Dimensions
Dimensions (Unit: mm) Accessory Mounting Dimensions Dimensions with Socket Mounted (The diagrams below show the external dimensions for rectangular models as representative models.) Wire-wrap Terminal/A3C-4101 PCB Terminal/A3C-4102 Solder Terminal/A3C-4103 33.6 33.6 15.8 33.6 16.7 16.7 16.7 3.55 13.9 dia. 13.9 dia. 13.9 dia. -
Page 12: Safety Precautions
Safety Precautions Refer to Safety Precautions for All Pushbutton Switches. CAUTION Do not apply a voltage higher than the maximum Using Microloads rated operating voltage between the lamp terminals, • Using a standard load switch for opening and closing a microload as there is a risk that the incandescent lamp or LED circuit may cause wear on the contacts. - Page 13 Application Mounting and Replacing the Pushbutton Panel Mounting • Insert the Switch from the front of the panel. Mount the mounting (1) Mounting Direction for the Pushbutton/Display and Lamp Lighted Pushbutton Switch nut from the terminal end of the Switch and tighten it. •...
- Page 14 • Application examples provided in this document are for reference only. In actual applications, confirm equipment functions and safety before using the product. • Consult your OMRON representative before using the product under conditions which are not described in the manual or applying the product to nuclear control systems, railroad systems, aviation systems, vehicles, combustion systems, medical equipment, amusement machines, safety equipment, and other systems or equipment that may have a serious influence on lives and property if used improperly.
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