Schneider Electric XB4BK123M5 Illuminated Selector Switch, Metal, Green, 22mm, Universal LED, 2 Pos, 1NO+1NC, 230-240V AC. The Schneider Electric Harmony XB4BK123M5 is a robust 22mm illuminated selector switch, engineered for reliable control and signaling in demanding industrial environments. Part of the acclaimed Harmony XB4 range, this complete product features a durable chromium-plated metal bezel and a distinctive green standard handle, designed for intuitive two-position (90°) 'stay put' operation. It comes equipped with 1 Normally Open (NO) and 1 Normally Closed (NC) slow-break contact configuration, alongside an integral Universal LED light source that operates on a 230-240V AC 50/60Hz supply. With screw clamp terminals for secure wiring, a mechanical durability of 1,000,000 cycles, and an impressive service life of 100,000 hours, the XB4BK123M5 ensures long-term performance. Its high ingress protection ratings, including IP66, IP67, IP69, IP69K, and NEMA UL type 4X/13, make it ideal for harsh conditions found in Egyptian and Gulf industries such as cement production, oil and gas, water treatment, food and beverage processing, and various building services applications.