This pole phase ITE 400A fused disconnect switch JN-425 240V W/400A fuses & neutral is a sensor/switch. 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 400A, 3 Pole. It is commonly in OEM equipment and MRO replacement for sensing and control circuits.
