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Key switches are electromechanical switches that can only be operated with the use of a key, which then is turned to different positions to break or complete the circuit. The different positions align with different states, such as 'ON' or 'OFF', giving a clear indicator of the state of the circuit. Key switches are typically used for operations and process that may require a higher level of safety or security clearance as they cannot be accidentally switched on or off without using the appropriate key. RS supply a range of key-operated switches from a variety of brands, including APEM, C&K, Lorlin, and our own RS PRO, as well as others.

### What are key switches used for?

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

- Fire alarm systems
- Data cabinets or servers
- Fuses boxes
- Processing or assembly lines
- Large or heavy-duty machinery


Shop our range of Key Switches supplies & accessories. Free Next Day Delivery. Browse our latest Key Switches offers.

Key Switches, Key Operated Lock Switches | RS

Key Switches

Shop our range of APEM Key Switches. Free Delivery Available.

APEM Key Switches | RS

Shop our range of C & K Key Switches. Free Delivery Available.

C & K Key Switches | RS

Shop our range of EAO Key Switches. Free Delivery Available.

EAO Key Switches | RS

Shop our range of Idec Key Switches. Free Delivery Available.

Idec Key Switches | RS

Shop our range of Kaba Key Switches. Free Delivery Available.

Kaba Key Switches | RS

Shop our range of Lorlin Key Switches. Free Delivery Available.

Lorlin Key Switches | RS

Shop our range of RS PRO Key Switches. Free Delivery Available.

RS PRO Key Switches | RS

Shop our range of Schneider Electric Key Switches. Free Delivery Available.

Schneider Electric Key Switches | RS

Shop our range of Siemens Key Switches. Free Delivery Available.

Siemens Key Switches | RS

Buy Eaton Key Switches. Browse our latest Eaton Key Switches offers. Fast and hassle free delivery.

Eaton Key Switches | RS

Buy Omron Key Switches. Browse our latest Omron Key Switches offers. Fast and hassle free delivery.

Omron Key Switches

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