Furnas 52PA4E3 Illuminated Pushbutton Operator

The Furnas 52PA4E3 is a heavy-duty illuminated pushbutton operator designed for industrial control panels and machinery. Part of the Class 52 series, this device features a green lens for clear visibility in start or operational indication applications. It operates on a maximum voltage of 120V AC/DC, making it suitable for low-voltage control circuits in manufacturing, automation, and process control environments. Key benefits include oil-tight construction for durability in harsh industrial settings, momentary contact action for reliable switching, and an extended head design for easy actuation even with gloves. Compared to similar products like those from Allen-Bradley or Schneider Electric, the Furnas model offers superior resistance to contaminants and a robust build, though it may require specific mounting hardware. Drawbacks include potential obsolescence due to Furnas' acquisition by Siemens, which could limit availability of exact replacements. Ideal for applications such as motor starters, conveyor systems, and panel-mounted controls, it enhances operator safety and efficiency. The unit in the images appears used with visible wear, but functional based on intact components. For detailed specs, refer to Siemens/Furnas datasheets.