NAMCO Snap-Lock Limit Switch EA170-21303

The NAMCO Snap-Lock Limit Switch EA170-21303 is a rugged, heavy-duty industrial switch designed for precise position detection and control in harsh environments. Manufactured by NAMCO Controls Corp., this model features snap-action contacts that provide reliable, high-speed switching with minimal contact bounce, ensuring long operational life exceeding millions of cycles. It is commonly used in applications such as conveyor systems, machine tools, elevators, and material handling equipment where accurate limit detection is critical. Key features include a durable die-cast aluminum housing for corrosion resistance, a rotary shaft actuator for versatile mounting, and high electrical ratings suitable for both AC and DC circuits. Advantages over similar products include superior vibration resistance and a sealed design that protects against dust, oil, and moisture, reducing maintenance needs. However, it may require periodic lubrication of the actuator shaft in extremely dirty environments, and its vintage design might not integrate seamlessly with modern digital control systems without adapters. Based on visual analysis, this unit appears used with signs of wear, including surface dirt and minor scratches, but remains functional with intact labeling and no visible damage to critical components. No parent/child assets are attached.