Thumb Wheel Switches

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Thumb Wheel Switches

With Thumb Rotary Switches, a character dial is turned to switch an actuator and set a value. They are also called digital switches. OMRON provides many models with different sizes and operation methods.

Thumbwheel Switch
A7D / A7DP

All-in-one design means fewer parts are required. This product delivers high reliability at a low cost.

Uses long-lasting resin springs to achieve a long mechanical durability expectancy of 30,000 operations.

Models with stoppers for restricting the setting range are available.

The series includes a complete range of pen-push models that prevent accidental operation.


A7CN / A7CN-L

The series includes a complete range of locking-type models that prevent accidental operation.


A7BS / A7BL

Character height of 4.8 or 3.2 mm makes for easy-toview display.

Installation is easy with snap-in mounting.

The series includes a complete range of locking-type models that prevent accidental operation.



A7PS / A7PH

Simple push mechanism and large, easy-to-view numeric display make setting easy.

Dust penetration prevented with seal for the display windows.