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Industrial Automation
A7BS / A7BL
Thumbwheel Switch
Wide Range of Locking-type Models Available
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Application Solutions
last update: April 1, 2016
Switches (Single Switch Units)
| Model | A7BS | A7BS-20[]-S | ||
|---|---|---|---|---|
| Classification
(See note 1.) |
Snap-in (front mounting)  |
Snap-in (front mounting)
With external stoppers  |
||
| Character height | Decimal: 4.8 mm Hexadecimal: 3.2 mm | 4.8 mm | ||
| Terminals | Solder terminals *1 | |||
| Color | Light gray | Black | Light gray | Black |
| Output code number | Model | |||
| 06 (binary coded decimal) | A7BS-206 *2 | A7BS-206-1 *2 | A7BS-206-S | A7BS-206-S-1 |
| 07 (binary coded decimal,
with component adding provision) *3 |
A7BS-207 *2 | A7BS-207-1 *2 | A7BS-207-S | A7BS-207-S-1 |
| 54 (binary coded hexadecimal) | A7BS-254 | A7BS-254-1 | --- | --- |
| 55 (binary coded hexadecimal,
with component-adding provision) *3 |
A7BS-255 | A7BS-255-1 | --- | --- |
| Model | A7BL | |
|---|---|---|
|
Classification (See note 1.) |
Snap-in (front mounting) Locking type  |
|
| Character height | 4.8 mm | |
| Terminals | Solder terminals *1 | |
| Color | Light gray | Black |
| Output code number | Model | |
| 06 (binary coded decimal) | A7BL-206 *2 | A7BL-206-1 *2 |
|
07 (binary coded decimal, with component-adding provision) *3 |
A7BL-207 *2 | A7BL-207-1 *2 |
Note: 1. The classification diagrams show 4 Switch Units combined with End Caps to create 4-digit displays.
2. The model numbers given above are for Switch Units.
3. Models with +, - displays can also be produced. Add “-PM” after the “206” or “207” in the model number
(e.g., A7BS-206-PM or A7BS-207-PM-1).
*1. For models with PCB terminals, add “-P2” to the model number (e.g., A7BS-207-P2-1).
*2. Models with internal stoppers are also available. Add “-S[][]” after the “206” or “207” in the model number and specify
the display range in the [][]. For example, to specify the range 0 to 6, add “-S06” to the model number (e.g.,
A7BS-206-S06-1).
For structural reasons, models with stoppers cannot be manufactured for the A7BS-254 and A7BS-255.
*3. Models with diodes are available. Add “-D” to the model number (e.g., A7BS-207-D or A7BS-207-D-1).
2. The model numbers given above are for Switch Units.
3. Models with +, - displays can also be produced. Add “-PM” after the “206” or “207” in the model number
(e.g., A7BS-206-PM or A7BS-207-PM-1).
*1. For models with PCB terminals, add “-P2” to the model number (e.g., A7BS-207-P2-1).
*2. Models with internal stoppers are also available. Add “-S[][]” after the “206” or “207” in the model number and specify
the display range in the [][]. For example, to specify the range 0 to 6, add “-S06” to the model number (e.g.,
A7BS-206-S06-1).
For structural reasons, models with stoppers cannot be manufactured for the A7BS-254 and A7BS-255.
*3. Models with diodes are available. Add “-D” to the model number (e.g., A7BS-207-D or A7BS-207-D-1).
Accessories (Order Separately)
Use accessories, such as End Caps, Spacers, and Connectors with the Switch Units.
End Caps, Spare Units, and Connectors
| Accessory | Color | Light gray | Black |
|---|---|---|---|
| End Caps (1 pair) | A7B-M | A7B-M-1 | |
| Spacer | A7B-P[] * | A7B-P[]-1 * | |
| Connectors | Solder terminals | A7B-C | |
| PCB terminals | A7B-CP | ||
* The [] in the Spacer model number stands for a letter in the range A to U. (Refer to the table in the following
explanation about Spacers.)
explanation about Spacers.)
End Caps
End Caps are used on the Switch Units at each end and allow all the Switch Units to be securely mounted to a panel. They come in pairs, one for the left and one for the right.
Spacers
- Spacers are used for creating extra space or gaps between the Switch Units and have the same dimensions as the Switch Units themselves.
- There are also Spacers with engraved characters or symbols that can be used for indicating units, such as time and length. (Refer to the following table.) Consult your OMRON representative for details.
| Symbol | A | B | C | D | E | F | G | H | J | K | L | Q | T | U |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stamp | No designation | SEC | MIN | H | g | kg | mm | cm | m | °C | PCS | x 10 SEC |
0 | ● |
last update: April 1, 2016
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