The OSR5MAS1C1A-LM is an AC/DC converter from Optosupply. It is a 1000W AC/DC open frame power supply with a wide input range of 100-277VAC and a 12V DC output. This power supply is intended for general purpose use, such as powering machinery and lighting, and has a high efficiency rating of up to 91%. It features LED indicators for output on/off, temperature, and overload protection. The OSR5MAS1C1A-LM also comes with IEC 60320-1 input and output connectors, built-in EMI filter, unrestricted air ventilation, over-voltage and over-temperature protection, and surge protection.