The Stahl Series 9143 is a robust Ex i power supply designed for hazardous areas, ensuring the intrinsically safe operation of devices such as transmitters, solenoid valves, light barriers, and controllers. This automation interface solution operates with a nominal voltage range of 9.4 V to 10.4 V and supports an auxiliary current of 180 mA. It accommodates a versatile power supply input from 20 to 28 VAC or 18 to 35 VDC and can withstand extreme temperatures ranging from -20 deg C to +70 deg C. With an IP30 rating, it's suitable for installation in zone 2 and 22 environments. The output voltage is stable and adjustable, catering to various application needs. Additionally, it comes with international certifications for global use within the hazardous area category.