This Honeywell 51199930-100 Main Rack is a powerful TDI Power Transistor device from the SPS5713 series. It is designed for indoor use and has a unit quantity of 1. The unit type is a unit, and the plug type, voltage rating, and capacity are not specified by the manufacturer. The mounting style, nominal current rating, ripple and noise, backup time, and minimum and maximum operating temperatures are also not specified by the manufacturer. This Honeywell Main Rack is a high-quality device that is perfect for use with switching mode power supplies. This is a NEW item, never been used/installed before. Box was opened just to take pictures. What you see in the pictures, is exactly what you will be receiving.