Safety button 2 NC 1 NO nickel-plated SP22-B-21. SP22-B-21\.

Safety button – reliability and protection in every circuit

This red safety button with a nickel-plated ring, designated SP22-B-21, is a key element ensuring safety in electrical installations. Designed to switch on and off circuits with a current of up to 2.5A, it is perfect for machine control panels, switchboards and other applications requiring immediate power disconnection. Its solid construction and high degree of protection IP65 guarantee reliable operation even in harsh industrial conditions.

Design and application

The SP22-B-21 button features a modular design, allowing for easy adaptation to different needs. Mounted in standard 22 mm diameter holes, it is compatible with most available control panels. Made of high-quality plastic and metal, it provides durability and resistance to mechanical damage. The front ring made of gray plastic adds aesthetics and facilitates identification. This button does not have a self-return function – after pressing it remains in the closed position, which is particularly important in emergency situations.

Key features and benefits

• Safety first: The button is designed for quick disconnection of circuits in emergency or dangerous situations.
• Durability and reliability: Made of durable materials resistant to mechanical damage and external factors.
• High degree of protection IP65: Provides protection against dust and water jets, enabling operation in harsh industrial conditions.
• Easy installation: Standard hole diameter (22 mm) facilitates integration with existing control panels.
• Clear identification: The red color of the button and the gray front ring ensure quick identification of the button's function.
• Contact configuration: It has 2 normally closed (NC) contacts and 1 normally open (NO) contact, providing flexibility in control circuit design.
• Solid electrical connection: Screw connection ensures a secure and durable connection of wires.

This button is not only a control element, but above all a guarantee of operator safety and protection of the electrical installation against damage caused by overload or short circuit. It is an investment in peace of mind for both the installer and the end user.