Safety button 3 NC nickel-plated ring ST22-B-30. ST22-B-30\.

Safety button – reliable protection and control

This red safety button ST22-B-30, manufactured by the renowned company Spamel, is a control element designed for applications requiring high reliability and precision. It is ideal for systems where a certain signal is needed and maintaining the state after activation, without the possibility of accidental deactivation. The construction with a nickel-plated ring ensures durability and an aesthetic appearance.

Construction and application

The button is characterized by a mushroom-shaped design, which makes it easy to operate even with gloves. Made of durable materials, it is resistant to mechanical damage and environmental conditions. Designed for mounting in 22 mm diameter holes, it fits most standard control panels and machine housings. Thanks to the IP65 protection class, it is resistant to dust and water ingress, allowing its use in harsh industrial conditions.

Important to know: This button is not intended for emergency stop (E-STOP) function. It is used for specific safety applications requiring deliberate unlocking after activation.

Key features and benefits

• Durable construction: Made of high-quality plastics and with a nickel-plated ring – a guarantee of long-term operation.
• Resistance to external conditions: IP65 protection class provides protection against dust and water jet, enabling operation in demanding environments.
• Safety of use: Mushroom-shaped design makes it easy to operate, and non-momentary action ensures maintaining the state after activation.
• Mounting versatility: Standard 22 mm hole diameter allows for easy integration with existing control panels.
• Reliability: Product of the Spamel brand – a synonym for quality and precision in the electrical industry.
• Screw connection: Ensures a secure and durable electrical connection of wires with a cross-section of 1…2.5 mm² (solid) or 0.75…1.5 mm² (stranded).

Technical specifications

The button has 3 normally open (NO) contacts, which allows it to be used in various control circuits. The red color of the button and the gray front ring ensure good visibility and compliance with safety standards. The product meets the requirements of PN-EN 60947-5-1 and IEC 60947-5-1/5/IEC 60947-1, which confirms its safety and reliability.