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Product Description
The Schneider ZA2BT4 is a robust and reliable selector switch head designed for industrial control applications. This black, standard handle selector switch head features a 2-position stay put operation, ensuring secure and maintained circuit control. Constructed from durable metal, it withstands harsh environments and provides long-lasting performance. The ZA2BT4 is compatible with Harmony XB4 series contact blocks and mounting collars, enabling effortless integration into existing control systems. Its clear and intuitive design facilitates easy operation and reduces the risk of errors. This selector switch head is an essential component for machinery, automation, and process control systems, providing dependable and consistent performance.
Is Your Device Showing These Signs?
Schneider ZA2BT4 push buttons commonly exhibit issues such as contact block failure, leading to intermittent or non-existent signal transmission. Operators report problems with the actuator sticking or binding, preventing proper switch actuation. Terminal screws loosen over time, causing wiring disconnections and operational faults. Environmental factors contribute to corrosion on contacts and mechanical components, degrading performance. Replacement of the entire unit or individual components such as the contact block or actuator resolves these problems.
Technical specifications
The Schneider ZA2BT4 is a robust, modular selector switch head designed for industrial control applications. This black plastic selector switch head features a standard 22mm mounting diameter, ensuring compatibility with a wide range of control panels and enclosures. It offers a two-position, stay-put operation, providing maintained control signals for equipment activation or deactivation. The ZA2BT4 is constructed from high-quality materials, guaranteeing durability and resistance to harsh industrial environments, including exposure to oils, chemicals, and extreme temperatures. It is engineered for seamless integration with Schneider Electric's Harmony XB4 series of contact blocks, enabling customization of switching configurations to meet specific application requirements. The ZA2BT4 selector switch head delivers reliable performance and long-term operational stability in demanding industrial settings.
Our Repair Process for the
ZA2BT4
Our repair process for Schneider ZA2BT4 push buttons begins with a comprehensive diagnostic assessment to pinpoint the exact cause of malfunction, whether it be contact block failure, actuator binding, loose terminal screws, or corrosion. We then proceed with the necessary corrective action, which includes replacement of faulty components such as the contact block or actuator, tightening of all terminal screws to the specified torque, and thorough cleaning and treatment of corroded parts to ensure optimal conductivity and mechanical function. Each repaired unit undergoes rigorous testing to verify proper operation and adherence to original performance specifications before being returned to service.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.


Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.
Buying Options
To receive a quote within 2 hours, please provide us with the details of your requirements. Our team will promptly review your request and send you a custom offer.

Ships from Rochester, NY