22mm key Push Button Switch industrial control circuits 10A Equipment on off

A key switch (sometimes called a key switch or lock switch) is a key-operated switch.Key switches are used in situations where access to the switch’s functions needs to be restricted.

Key switches are available as components with solder connections, and are available with a variety of ampere ratings. They may use tubular or other specially-shaped keys for extra security

Key switches have been used for a variety of purposes, up to and including the launch of nuclear missiles.

In less secure applications such as corridor and restroom lighting controls in public buildings, tamper-resistant switches with a simpler key mechanism may be used instead.

The Key Switch can be used for electrical isolation. Electrical (and resulting kinetic) energy is used to globalism heavy loads, actuate machinery, and perform a host of different tasks in automation and manufacturing. This can be incredibly hazardous to personnel operating around these processes and why isolation is a key factor to many trapped key solutions.

Key Switch(es) are a tried and tested method of mechanically safeguarding dangerous machines and hazardous processes. Mechanical keys eliminate most of the electrical wiring associated with other types of interlocks making it cost effective to install and maintain.

Control interlocking, using keys to change the state of switch contacts, is one method, tried and tested, to isolate hazardous electrical energy.

a key operated switch is used to swap the state of switch contacts which is used to isolate electrical energy to a particular system. Upon isolation, this key is freed allowing it to be used for controlled access to a particular safeguarded space. The key ensures that access to this space is only possible when the hazard is isolated, and the hazard is only able to be reinstated when the key is returned.