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OMRON A7BS-255 Thumbwheel Switch
Brand: OMRON
Name: Thumbwheel Switch
Model: A7BS-255
Model: A7BS.
Classification (See note 1.): Snap-in (front mounting).
Character height: Decimal: 4.8 mm Hexadecimal: 3.2 mm.
Terminals: Solder terminals *1.
Color: Light gray.
Output code number: 55 (binary coded hexadecimal,
with component-adding provision) *3.
Wide Range of Locking-type.
Models Available.
Character height of 4.8 or 3.2 mm makes for easy-to,
view display.
Installation is easy with snap-in mounting.
The series includes a complete range of locking-type,
models that prevent accidental operation.

Appearance: Round/Medium-size Mushroom type (40-dia head) A22-M.
Output: SPST-NO + SPST-NO.
Operation: Momentary operation (self-resetting).
Illumination color: R (red); Y (yellow); G (green);
W (white); A (blue); B (black).
Install in 22-dia. or 25-dia. Panel Cutout.
(When Using a Ring).
Lever for easily mounting and removing the Switch Unit OMRON A7BS-255.
Increase wiring efficiency with three-row mounting of Switch Blocks A7BS-255
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) OMRON A7BS-255. Contact type: Standard load (250 VAC, 2 A; 125 VDC 0.4 A).
Operation: Alternate operation (Self-holding).
Output: SPDT.
Lighting: LED, 24 VDC.
Operation Unit color symbol: Enter the desired color symbol for the,
Pushbutton in @@. R (Red); Y (Yellow); G (Green); A (Blue); W (White).
Pushbutton Switch Series with.
Square 40-mm Body.
Combines miniature design with distinct but soft sense of operation OMRON A7BS-255.
Easy panel mounting from the front and simple lamp replacement.
without tools. Contact type: Microload (125 VAC, 0.1 A; 30 VDC, 0.1 A).
Operation: Momentary operation (Self-resetting).
Case color: Black.
Output: SPDT.
Lighting: Incandescent lamp; 6 VDC/VAC .
Pushbutton color symbol: R.O.G.W.
Large Square-bodied Lighted.
Pushbutton Switches.
Excellent operating sensitivity.
Excellent illumination with even surface brightness.
Three-color models (green, orange, red; chameleon lighting).
included in lineup. Appearance: Knob-type Selector Switch A22W,
LED lighting (without Voltage Reduction Unit).
Number of notches: 3 notches.
Resetting method: Manual.
Output: SPST-NO + SPST-NO.
Operating voltage: 12 VAC/VDC.
Illumination color: R (red); Y (yellow); G (green); A (blue). A7BS-255.
Install in 22-dia. or 25-dia. Panel Cutout.
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.
Mountted using either open-type (fork-type) or closed-type,
(round-type) crimp terminals A7BS-255.
IP65 oil resistance (non-lighted models).
IP65 (lighted models).


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