Safety button 3NC nickel-plated ring ST22-B-03. ST22-B-03\.

Safety button – reliable control and protection

This red safety button ST22-B from Spamel is a control element designed for applications requiring precision and minimizing the risk of accidental operation. Equipped with a twist-release mechanism, it ensures deliberate and controlled action, making it an ideal solution in systems where safety is a priority. However, this is not an emergency stop (E-STOP) button – its function is to maintain the state after activation and requires conscious unlocking.

Design and application

The button is characterized by a solid construction with a mushroom-shaped actuator and a gray front ring made of plastic. Designed for mounting in 22 mm diameter holes, it has a screw connection, which facilitates integration with existing installations. The IP65 protection rating guarantees resistance to dust and strong water jets, enabling operation in harsh industrial conditions.

It finds application in industrial automation, access control systems and specialized devices where maintaining a state (e.g. access blocking) or starting a sequence after operator confirmation is required. It will be useful where standard buttons may be too susceptible to accidental activation.

Key features and benefits

• Twist-release mechanism: Ensures deliberate operation and minimizes the risk of accidental activation or deactivation.
• High resistance to external conditions: IP65 protection rating protects against dust and water, guaranteeing reliable operation in harsh environments.
• Durable construction: Made of high-quality materials, ensures long-term use.
• Standard mounting hole size (22 mm): Facilitates integration with most control panels and cabinets.
• Red button color: Provides good visibility and compliance with industry labeling standards.
• Non-latching: Maintains the state after activation until deliberately unlocked by twisting.
• Screw connection: Allows easy and secure connection of wires.

Please remember that this button does not replace a traditional emergency stop (E-STOP) switch. Its purpose is for specific safety applications requiring a state to be maintained after activation and deliberate unlocking.