The TDN 3-4813WISM is a high efficiency, isolated power supply module made by TRACO Power. It is a wattage-selectable DC/DC converter, meaning it can provide different wattage output power levels depending on the user's needs. The TDN 3-4813WISM features an input range of 9V to 36V, allowing it to be powered by a wide variety of sources. It also has a wide output range, with differing voltages and an adjustable output current. The TDN 3-4813WISM is UL, CUL, and CE certified, meeting industry standards for quality and reliability. It also includes a variety of protection features for enhanced safety, such as over voltage protection, short circuit protection, over temperature protection, and over current protection.