The ABB 1SVR405652R9000 Diode Module is a 3-terminal, rectifying diode module designed specifically for use in AC and DC power systems. It incorporates three copper-aluminum fused terminals, an anode terminal, a cathode terminal, and a neutral terminal. The anode terminal is used to connect the diode to the AC or DC circuit, while the neutral and cathode terminals allow for paralleling the diode with other rectifier modules or AC ratings. The copper-aluminum body construction makes it suitable for a wide range of applications such as in variable frequency drives, phase controlling modules, and voltage regulators, as well as in UPS and other general purpose power systems. The diode module is designed for use with a variety of switching components, providing stable and reliable protection against overloads and over-temperatures.