Telemecanique XB4BW3335 Pushbutton Illuminated Switch

The Telemecanique XB4BW3335 (Schneider Electric) is a 22 mm illuminated green flush pushbutton with spring return and an integral 6 V transformer, designed for operator control and status indication in industrial automation systems. It combines a 1 NO + 1 NC (slow-break) contact configuration with an incandescent lamp (BA9s base) powered by the internal transformer. Mounting diameter is 22 mm, with a chromium-plated metal bezel and a Zamak fixing collar; overall dimensions are 47 × 30 × 101 mm, and the green flush operator profile features a plain lens. The unit uses screw clamp terminals, runs on 110–120 VAC at 50/60 Hz, and includes an internal 1.2 VA transformer for the 6 V lamp while providing IP66, IP67, IP69, IP69K protection in installed assemblies, suitable for harsh industrial environments. Common applications include control panels, motor control centers, packaging machinery, conveyors, machine tools, and process equipment requiring illuminated momentary input and visual feedback.