The Mean Well GSC40B-500 is a 40-watt (50 Watt peak) AC/DC open-frame switching power supply designed for use in industrial, instrumentation and control, communications, and telecommunications systems. It features an ultra-wide 4:1 input voltage range, which runs from 85V AC to 264V AC, and is designed with "Power Factor Correction" to ensure the highest efficiency and reduce any harmonic distortions. This high-performance power supply also features higher-than-normal output voltage stability and full-load operation up to 85°C. Additionally, the GSC40B-500 has short-circuit, overload, and overvoltage protection built-in, as well as full EMC/EMI compliance to meet international specifications.