The FB1W-111Z is a compact 76 × 76 × 59.5 mm polycarbonate enclosure designed to house IDEC HW, TW, and XW series 22mm switches and pilot devices. The enclosure features a single mounting hole configuration, stainless steel cover mounting screws, and is rated IP65 and NEMA Type 4X when installed with compatible IP65 or NEMA Type 4X switches and pilot devices. It provides Class II electric shock protection when equipped with applicable units and is suitable for high-temperature and corrosive environments with an operating ambient temperature range of -25 to +60 °C and storage temperature range of -40 to +80 °C. The beige polycarbonate construction, combined with easy panel, wall, or frame mounting capability, makes it ideal for industrial control applications requiring compact, durable, and environmentally sealed switch enclosures.