Legrand PLEXO emergency pushbutton mechanism, yellow, 1 NC + 1 NO, IP55, 22.5 mm

This emergency pushbutton from the Legrand PLEXO series is designed for manual stopping or interruption of control circuits in industrial and commercial automation systems. It is used where a clearly visible emergency control element is required on switchboards, control panels, technological equipment, and other installations with electrical auxiliary circuits. The mushroom-shaped actuator and yellow color make the control point easy to identify in operation areas. The mechanism includes one normally closed (NC) contact and one normally open (NO) contact, which allows both circuit interruption and additional signaling or interlocking within a single control scheme. Release is performed by turning the actuator, so after activation the button is reset manually. The device is intended for AC circuits, with a rated voltage of 220–250 V, making it suitable for common control applications. Auxiliary circuits are connected by screw terminals, and the permissible conductor cross-section is 1.5–2.5 mm². For installation, the button requires a 22.5 mm mounting hole. Its overall dimensions are 70.5 × 70.5 × 69 mm, which supports use in standard panel and enclosure layouts. The IP55 protection rating provides resistance against dust ingress and water jets, while IK07 mechanical strength indicates protection against defined impact loads. These characteristics are important for control points that may be exposed to dust, humidity, or incidental mechanical influence during operation. The operating temperature range is from -10 to +40 °C, and the storage temperature range is from -25 to +60 °C. No illumination is provided, which simplifies the construction and keeps the device focused on direct emergency actuation. Overall, this PLEXO mechanism is intended for applications where reliable manual control, clear emergency identification, and defined enclosure protection are required in a compact mounting format.