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Cam switches, also known as rotary cam switches or cam selector switches, are robust electrical switches that operate through a unique rotating mechanism. At the heart of a cam switch lies a central shaft with precisely shaped cams attached. As the shaft rotates, these cams make or break contact with an array of electrical contacts, determining the switching sequence and the number of positions. This intricate interaction between cams and contacts allows for diverse switching configurations, including simple on/off control, changeover switching between circuits, sequential activation of multiple circuits, and selection among various operating modes. The versatility and robust construction of cam switches make them ideal for demanding industrial applications where reliable and precise control is paramount. Some rotary switches can be configured to control multiple contacts simultaneously at a single switch position.

## **Types of Cam Switches**

Cam switches are categorised based on their functionality and switching configurations. Here are some common types:

### **Multi-position Cam Switch**

A multi-position cam switch, also known as a multi position switch or rotary cam switch, offers multiple switching positions, allowing for control of various circuits or functions with a single device. This type excels in applications requiring sequential control or selection among multiple options. Common configurations include rotary cam switch 3 position and 4 position cam switch variants.

### **Rotary Changeover Cam Switch**

A rotary changeover cam switch, also known as a rotary change over switch, is designed to switch between two or more circuits. These switches are commonly employed in applications where a load needs to be transferred from one power source to another or where different circuits need to be activated sequentially.

### **Selector Cam Switch**

A selector cam switch, or cam selector switch, provides a means to select among different circuits or functions. These switches are often used in control panels and industrial equipment to choose between various operating modes or settings.

## **Comparison with Other Switches**

Cam switches offer distinct advantages over other switch types, such as rotary or toggle switches:

- **Higher Current and Voltage Handling:** Cam switches are engineered to handle higher currents and voltages, making them suitable for demanding industrial applications where rotary or toggle switches might fall short.
- **Multiple Positions and Complex Switching: **Cam switches can accommodate multiple positions and complex switching sequences, offering greater flexibility in control applications compared to simpler switch types.
- **Robust Construction: **Cam switches are typically built with robust housings and durable contacts, ensuring reliable operation in harsh industrial environments.

## **Cam Switch Industry Applications**

Cam switches find widespread use in various industries, providing reliable and versatile electrical control solutions:

- **Discrete Manufacturing:** In manufacturing environments, cam switches control machinery, conveyor systems, and other automated processes, ensuring precise and reliable operation.
- **Process Manufacturing:** In process industries, such as chemical and pharmaceutical manufacturing, cam switches control valves, pumps, and other process equipment, maintaining critical process parameters.
- **Energy and Utilities:** Cam switches are used in power generation and distribution systems to control switchgear and other electrical equipment, ensuring safe and efficient power management.
- **Facilities and Intralogistics:** Cam switches are used in building automation systems, HVAC systems, and material handling equipment to control various functions, optimizing building operations and material flow.

## **Your Trusted Cam Switches Supplier & Manufacturer**

[RS](https://au.rs-online.com/web/) is your go-to supplier for cam switches in Australia. As a trusted and widely-used distributor, we offer an extensive range of rotary cam switches and cam selector switches from renowned brands like [Kraus & Naimer](https://au.rs-online.com/web/c/switches/rotary-switches-components/cam-switches/?pn=1&rpp=20&selectedNavigation=brands=Kraus%20%26%20Naimer), [Eaton](https://au.rs-online.com/web/c/switches/rotary-switches-components/cam-switches/?pn=1&rpp=20&selectedNavigation=brands=Eaton), and [Schneider Electric](https://au.rs-online.com/web/c/switches/rotary-switches-components/cam-switches/?pn=1&rpp=20&selectedNavigation=brands=Schneider%20Electric).

Whether you need a rotary cam switch 2 position, a rotary changeover switch, or a multi position switch, we have the perfect solution for you. Our selection caters to diverse industrial applications, ensuring you find the right cam switch for your specific needs.

For more details on delivery services and fees, please refer to our [Delivery Page](https://au.rs-online.com/web/content/support/all-articles/delivery).



Shop a wide range of rotary cam switches at RS. Find multi-position, selector, change over cam switches and more for your project. Free next day delivery.

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