Honeywell Key Switch, 20 A @ 12 V dc 3-Way Straight-Key

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Honeywell Key Switch 2-Way

Honeywell Key Switch, DPDT, 2 A @ 24 V dc, 2 A @ 250 V ac, 3 A @ 125 V ac 2-Way Flat-Key


Enhance security and control access to your electrical systems with our comprehensive range of key switches. At RS Hong Kong, we offer a variety of key lock switches, industrial key switches and electronic key switches to meet your specific needs. 

Explore our selection of high-quality key switches from leading brands and ensure reliable performance for your applications.

## **What Are Key Switches**

Key switches are electromechanical devices designed to control the flow of electricity in a circuit. Unlike standard switches, they require a key to operate, providing an added layer of security and preventing unauthorised access. 

Turning the key to different positions changes the state of the switch, effectively turning the circuit ‘ON’ or ‘OFF’. This makes key switches ideal for applications where safety and security are paramount, such as industrial control panels, security systems and access control points.

## **Different Types of Key Switches**

Key switches come in various configurations to meet the diverse needs of different applications. Here's a brief overview of some common types:**

Single Pole (SP) Key Switch**

Single pole key switches, like the name suggests, control a single circuit. They are often used in applications where you need to turn one device or circuit ON or OFF with a key. These are a popular choice for simple security key switch applications, such as securing access to equipment or machinery. 

### **Double Pole (DP) Key Switch**

Double pole key switches control two separate circuits simultaneously with a single key. This can be useful when you need to isolate both the live and neutral connections for added safety. Double pole key switches are commonly found in industrial settings and applications where a higher level of safety is required, such as a door key switch for access control.**

Triple Pole (3P) or Multi-Pole Key Switch**

Triple pole key switches, also known as 3-pole key switches, control three separate circuits with one key. Multi-pole key switches extend this functionality to even more circuits. These types of key switches are typically used in complex industrial applications where multiple circuits need to be controlled simultaneously, such as complex machinery or in safety-critical systems. 

## **What Are Key Switches Used For?**

Key switches are commonly found in industrial environments, such as factories and warehouses, but can also be found anywhere that it is deemed an appropriate security level to use a key-operated switch. Typical applications may include:

- **Fire Alarm Systems:** Key switches can be used to activate or deactivate fire alarm systems, ensuring only authorized personnel can control them.
- **Data Cabinets or Servers:** Secure access to sensitive data and equipment by using key switches to control power or access to server racks.
- **Fuses Boxes:** Prevent unauthorised access to fuse boxes and electrical panels with key switches, enhancing safety and preventing tampering.
- **Processing or Assembly Lines:** Control the operation of specific machinery or sections of an assembly line with key switches, improving safety and workflow management.
- **Large or Heavy-duty Machinery: **Key switches can be used as a [machine safety](https://hken.rs-online.com/web/content/discovery/ideas-and-advice/machine-safety-guide) measure to prevent accidental activation of heavy machinery or equipment, protecting operators and preventing damage.

## **How to Choose the Right Key Switches**

To choose the right key switch, consider factors such as the required voltage and current ratings, the number of poles, the desired features (momentary or maintained action), the panel cut-out size and the environmental conditions of your intended use.

At RS Hong Kong, we understand that security and reliability are paramount when it comes to key switches. That's why we've curated a selection of high-quality key switches from trusted brands for durable and reliable performances. 

To complement your key switches and complete your electrical projects, we also offer a wide range of related products. Explore our selection of [relays](https://hken.rs-online.com/web/c/relays-signal-conditioning/relays/), [enclosures](https://hken.rs-online.com/web/c/enclosures-server-racks/enclosures/) and more to ensure a seamless and professional installation.

## **How to Order Key Switches from RS Hong Kong**

Need to secure your equipment or enhance access control? RS Hong Kong offers a wide range of key switches at various prices, from top brands like [Schurter](https://hken.rs-online.com/web/b/schurter), [APEM](https://hken.rs-online.com/web/b/apem) and [Marquardt](https://hken.rs-online.com/web/b/marquardt). Our online ordering process is simple and efficient. 

Just visit our website, browse our selection of key switches and filter by your desired specifications. Once you've found the perfect key lock switch or industrial key switch for your needs, add it to your cart and proceed to the checkout to buy it.

## **How Delivery Works at RS Hong Kong**

We offer efficient and reliable delivery services to get your key switches to you quickly. For eligible orders within Hong Kong, you can take advantage of same-day delivery for orders placed before noon or next-day delivery for later orders. 

If you need your key switches urgently, we also offer expedited shipping options. Visit our [Delivery Page](https://hken.rs-online.com/web/content/services/delivery) today for more detailed information on delivery times, costs and available services.



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Honeywell Key Switches

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