This Square D D324N SER F01 200A 200 AMP FUSIBLE SAFETY DISCONNECT SWITCH INDOOR is a sensor/switch manufactured by Square D. It senses object presence, distance, or position (or switches an electrical circuit) and converts that into an output signal for machine control or monitoring. Key specifications noted on this listing include 200A, 200 AMP. It is commonly in OEM equipment and MRO replacement for sensing and control circuits.
