Rotary Cam Switch Manufacturer
Compare VIOX LW26 and LW30 rotary cam switch series for circuit selection, changeover, motor control and load isolation. Select by current range, utilization category, contact program, mounting and enclosure.
Configurable contact programsControl and changeover functions
10A–315A published rangeConfirm by series and duty
Multiple positions and polesMatch the circuit sequence
Panel or enclosed optionsProtection varies by model
What is a rotary cam switch?
A rotary cam switch uses a shaped cam to operate stacked contacts as the handle moves through defined positions. Depending on its contact program, it can provide ON/OFF, changeover, reversing, selector, instrument and motor-control functions.
“Cam switch” describes the switching mechanism; the actual function depends on the contact program and published ratings. Select the device by operational current, utilization category, voltage, positions, poles, switching angle, mounting and enclosure requirements.
VIOX Rotary Cam Switch Series
Compare the two published VIOX families. Open the product page for full ratings, operating modes and ordering details.
LW26 Rotary Cam Switch 10A–315A
Rotary cam switch- Rated Current
- 10A–315A
- Voltage
- ≤440V AC / ≤240V DC
- Switching Angles
- 30° / 45° / 60° / 90°
- Operating Modes
- Maintained / Spring Return
LW30 Load Disconnect Switch 20A–100A
Rotary cam switch- Rated Current
- 20A–100A
- Voltage
- ≤440V AC
- Utilization
- AC-23A / AC-3
- Protection
- IP20 / IP65
How to choose a rotary cam switch
Define the required circuit function first, then verify electrical duty and mechanical configuration on the exact series.
Circuit function and contact program
Specify ON/OFF, source changeover, reversing, selector, instrument or motor-control duty and provide the required contact sequence.
Operational current and utilization category
Match the load type, system voltage and published AC or DC operational rating; do not select by thermal current alone.
Positions, poles and switching angle
Confirm handle positions, number of switched circuits, contact sections and the required 30°, 45°, 60° or 90° indexing.
Mounting, handle and enclosure
Define panel or single-hole mounting, handle style, legend plate, padlocking and the required enclosure protection.
Match the switch family to the duty
LW26 provides broad programmable control and changeover coverage, while LW30 is focused on load disconnection and selected small-motor duties.
Compare published Rotary Cam Switch series
Values below come from the published product summaries. A dash means that the two series describe the characteristic differently; open the model page before specification.
| Series | Rated current | Rated voltage | Switching duty | Configuration |
|---|---|---|---|---|
| LW26 Rotary Cam Switch 10A–315A | 10A–315A | ≤440V AC / ≤240V DC | Maintained / Spring Return | 30° / 45° / 60° / 90° |
| LW30 Load Disconnect Switch 20A–100A | 20A–100A | ≤440V AC | AC-23A / AC-3 | IP20 / IP65 |
Rotary Cam Switch Applications
Typical environments where the exact product characteristics must be verified.
Residential Buildings
Manual equipment selection and building-service switching where the published duty is suitable.
Industrial Automation
Control panels, machine modes, motor commands and programmed circuit selection.
Solar & Energy Storage
Manual selector and isolation functions where the exact AC or DC ratings are verified.
Rotary Cam Switch Knowledge & Selection Guides
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Rotary Cam Switch Selection Questions
Quick answers for preliminary product-family comparison before detailed circuit verification.
What does a rotary cam switch do?
It uses a rotary cam mechanism to operate a programmed set of contacts. The same product family can perform ON/OFF, changeover, selector, reversing, instrument or motor-control functions when configured and rated for that duty.
Is a cam switch the same as a changeover switch?
Not exactly. A cam switch describes a rotary contact mechanism, while a changeover switch describes a circuit function. A rotary cam switch can be configured as a changeover switch, but many cam-switch configurations perform other functions.
How should I choose between LW26 and LW30?
Choose LW26 when you need broad programmable control, selector or changeover arrangements across its published 10A–315A range. Consider LW30 for load disconnection and selected AC-23A or AC-3 duties within its published 20A–100A range.
Can a rotary cam switch control a motor?
Some configurations have published motor-control utilization ratings. Confirm motor voltage, operational current, starting duty, switching category, contact program and the required protective-device coordination.
What information is needed for a custom contact program?
Provide the circuit function or wiring diagram, voltage, load type and current, positions, poles, contact sequence, switching angle, maintained or spring-return operation, mounting, handle, marking, enclosure and quantity.
Need the Right Rotary Cam Switch?
Let’s Match the Contact Program.
Send the required function or wiring diagram, voltage, load and current, positions, poles, mounting, enclosure, quantity and target market. VIOX will help identify the suitable published series and configuration.
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