Safety button 2 NC 1 NO nickel-plated ring ST22-B-21. ST22-B-21\.

Safety button – reliable protection and control

This red safety button with a twist-release mechanism is a control element that will find application in many industrial and specialized applications. Designed by the renowned company Spamel, it provides precise control and increased safety in places where intentional machine start-up or shutdown is required. It is important to remember that this is not an emergency stop (E-STOP) button as defined by machine safety standards, but an element dedicated to specific safety functions.

Design and application

The button is characterized by a solid construction of plastic and metal, which guarantees its durability even in harsh working conditions. The red mushroom head with a diameter of 34 mm and the gray front ring provide good visibility and easy identification. Mounting is done in a 22 mm diameter hole, making it compatible with most control panels. The twist-release mechanism minimizes the risk of accidental activation, increasing operator safety and protecting against unintended machine operation.

Key features and benefits

• Twist-release mechanism: Ensures intentional device start-up or shutdown, eliminating the risk of accidental activation.
• IP65 protection rating: Protects against dust and strong jets of water, enabling operation in harsh industrial conditions.
• Durable materials: Plastic and metal provide long-lasting reliability and resistance to mechanical damage.
• High visibility: Red mushroom head and gray front ring make it easy to identify the button in various lighting conditions.
• Standard mounting hole size (22 mm): Allows easy integration with existing control panels.
• Non-latching: Maintains the button state until intentionally released, which is important in applications requiring a constant safety signal.
• Wide application: Ideal for industrial automation, access control systems and specialized devices requiring precise control and safety.

This button is not just a control element – it is an investment in the safety and reliability of your system.