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Cam Switches & Rotary Switches | Wholesale & OEM/ODM

Willmall cam switches and rotary switches are for manual switching duties where the operator needs a clear, repeatable position. They support control, changeover, and selector functions on panels and machines.

  • Defined switching positions and contact arrangements for start, stop, and changeover control
  • Front-panel mounting with visible position indication
  • Configurable pole counts for single-phase and three-phase duties
  • Contacts designed for frequent manual operation
  • Standardized fixing dimensions for door and panel installation
What is the difference between a cam switch and a rotary switch?

Both are manually operated switches controlled by a rotary handle. The difference is mainly in construction and switching logic; cam switches use cam-operated contact stacks for multi-position duties such as changeover, while rotary switches are typically used for position selection.

Which switching positions are normally available?

Common positions include single-pole or multi-pole ON/OFF, 0-1-2 stepped sequences, and changeover or reversal arrangements such as 1-0-2 or direction-reversal layouts, selected to match the control function.

Where are cam switches and rotary switches installed?

They are used on machine control panels, main switches, changeover panels, and as selector switches for mode and function selection in industrial equipment.

How are they mounted on a panel?

They are mounted through a front-panel cut-out with standard fixing dimensions, and the handle is fitted on the operator side while the switch body and wiring terminals sit behind the panel.

How should the contact arrangement be selected?

The number of poles and the switching sequence are chosen to match the circuit being controlled, for example two poles for single-phase reversal or four poles for three-phase changeover.

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