Safety button 2 C/O, nickel-plated ring ST22-B-20. ST22-B-20\.

Safety button – a reliable control element

This red safety button with a nickel-plated ring, designated ST22-B-20, is a solid and functional control element designed for applications requiring precision and reliability. Designed for both professional installers and end-users, it will perform well in a variety of industrial and machine applications.

Construction and parameters

The button drive is characterized by high-quality workmanship and durability. Made of durable materials, including a plastic front ring and a nickel-plated finish, it provides resistance to mechanical damage and corrosion. The standard 22 mm mounting hole diameter makes it easy to integrate with existing control panels. The button has two normally closed contacts, allowing it to be used in safety circuits requiring a maintained state after activation. The IP65 protection class guarantees resistance to dust and strong water jets, making it an ideal solution for working in harsh industrial conditions.

Application and benefits

The ST22-B-20 button is used in machine and device control systems where precise and controlled operation is required. It is ideal for applications where a safety signal must be maintained until operator intervention – for example, in systems protecting against uncontrolled movement or start-up. However, it is important to remember that this is not an emergency stop (E-STOP) button as defined by machine safety standards. Its construction based on a non-self-returning mechanism and rotary unlocking provides additional protection against accidental starting or stopping of the device. This gives the user full control over the process and can consciously decide to change the device's state.

• Durable construction: Ensures long-lasting and reliable operation even in demanding industrial conditions.
• Resistance to external factors: IP65 protection class protects against dust and water, increasing the device's lifespan.
• Safety of use: Non-self-returning mechanism and rotary unlocking minimize the risk of accidental change of the device's state.
• Easy installation: Standard 22 mm hole diameter makes it easy to integrate with existing control panels.
• Wide application: Ideal for machine and device control systems requiring precision and reliability (excluding E-STOP function).