The XB4BW33B5 is a complete illuminated push-button unit from the Harmony XB4 range, designed for standard control and signaling applications. It features a chromium-plated metal bezel, a 22mm mounting diameter, and a green flush, spring-return operator with a plain lens. The device includes one normally open (NO) and one normally closed (NC) slow-break contact block, an integral universal LED rated for 24V AC/DC, and connects via screw clamp terminals. Built for durability, it offers a mechanical lifespan of 10,000,000 cycles and is rated for operation in harsh environments with IP66/IP67/IP69/IP69K protection and an operating temperature range of -40 to 70°C. Its robust construction makes it suitable for industrial control panels, machinery, and automation systems.