The TDN 1-1222WISM is a 12 V DC output, 22 W DIN rail power supply manufactured by TRACO Power. It is a wide range input with active power factor correction (PFC) and includes various protections including short-circuit, overload, and overvoltage protection. It features a wide range of input voltage from 85 - 264 VAC and offers the user a 12 V, 1.83 A DC output. The TDN 1-1222WISM is designed to meet EN 60950, and EN 50178 safety standards. It is suitable for installation in a variety of applications including industrial systems, HVAC equipment, and office automation systems.