Available. The Rittal SZ 4138.290 is a standard light fixture designed for industrial and IT applications, providing reliable illumination for enclosures. This model operates on a supply voltage of 120 V AC at 60 Hz or 230 V AC at 50 Hz, accommodating various regional power standards. It features an integral door-operated switch, enhancing user convenience by automatically activating the light when the enclosure door is opened. The light utilizes a fluorescent lamp with a G13 base, ensuring efficient and consistent lighting. With a rated power of 18 W, it offers a balance between energy efficiency and adequate brightness. The magnetic ballast ensures stable operation and longevity of the light source. Installation is straightforward, with options for direct mounting on TS horizontal profiles or using an adapter bracket for SE vertical sections. The fixture is designed for screw fastening, ensuring a secure and stable setup. The protection category I (PE conductor) indicates that the fixture is suitable for use in environments where grounding is essential for safety. The rated impulse withstand voltage of 1500 V AC (phase to earth) and 500 V AC (phase to phase) ensures the fixture can handle electrical surges, enhancing its durability and reliability in industrial settings. The rated insulation voltage of 500 V DC/1s further underscores its robust design, making it a dependable choice for various industrial applications.