Flush-mounted white button 2-pole nickel ring ST22-KB-20. ST22-KB-20\.

Product features

• Highly durable housing.

Critical button – a reliable control element

The Critical button with a nickel-plated ring is a solid and versatile solution for use in control cabinets, operator panels and other devices requiring reliable starting and stopping of circuits. The self-resetting design ensures ease of use, and high resistance to external factors (IP65) guarantees long-lasting and trouble-free operation even in harsh industrial conditions.

This model, designated ST22-KB-20, features a white button color and a nickel-plated front ring, providing an aesthetic appearance and easy identification. The button is designed for mounting in 22 mm diameter holes and offers two normally closed contacts, making it ideal for applications requiring switching electrical circuits.

Construction and application

The button is made of high-quality materials, which translates into its durability and resistance to mechanical damage. Screw connection ensures a secure and stable connection of electrical wires. Thanks to the IP65 protection class, it is resistant to dust and water ingress, allowing it to be used in environments with increased humidity or dustiness.

The button finds application in a wide range of devices and installations, such as:

• Control cabinets
• Operator panels
• Industrial machines and equipment
• Building automation
• Alarm systems
• Lifting equipment

Key features and benefits

• Self-resetting mechanism: ensures automatic return to the starting position after releasing the button – comfort and safety.
• IP65 protection class: guarantees resistance to dust and water ingress – reliability in difficult conditions.
• Two normally closed contacts: allow switching electrical circuits – versatility of application.
• Easy installation: thanks to the standard hole diameter (22 mm) – quick integration with existing installations.
• Durable materials: ensure long-term operation – minimizing costs associated with replacement.
• Aesthetic appearance: white button color and nickel-plated front ring – professional look of the installation.
• Screw connection: ensures a secure connection of wires - safety of use.