Available. The Rittal SZ 4139.140 is a high-quality courtesy light designed for industrial enclosures, providing efficient illumination for control cabinets and similar applications. This model operates on a supply voltage of 100 - 240 V AC at 50/60 Hz, ensuring compatibility with various power systems. It features a power consumption of 14 W, utilizing a wide-range electronic ballast for stable performance. The light source is a fluorescent lamp with a G13 base, offering reliable and consistent lighting. The unit includes an integral on/off/door-operated switch, allowing for convenient operation. Installation is straightforward with screw-fastening, and the light cover is included to protect the lamp. The protection class is I (PE conductor), ensuring safety during operation. The unit's dimensions are 452 mm in length, 117 mm in height, and 50 mm in depth, making it suitable for various enclosure sizes. The rated impulse withstand voltage is 1000 V AC phase to earth and 500 V AC phase to phase, with a rated insulation voltage of 500 V DC for 1 second, indicating robust electrical resilience. This courtesy light is an essential accessory for enhancing visibility and safety within industrial enclosures.