86466-79R

About the 86466-79R

The 86466-79R is an Upper AC Heat Sink Assembly that was initially created and mass-produced by Reliance Electric.

The 86466-79R is also known as a rectifier stack. A rectifier stack has the ability to transform AC current into a more stable DC current. This part was originally made for Reliance’s 300 to 500HP Variable Torque AC V*S Drive Controller systems.

The 86466-79R is a set of vertical heatsinks that are connected by a center metal carrier. There are a set of brackets on the top of the module that can be used to attach this module to another rectifier stack. There is a small printed circuit board that is positioned on the top of the module. This PCB is a PC gate coupling card. It has four-pin connections, diodes, resistors, and a large transformer on it. The transformer is held in place using a metal bar. The PCB is attached to the rectifier stack using screws. This card can be easily replaced if it is damaged. This module is roughly 23 lbs.

The components for the drive controller are typically installed into a major control cabinet system. The 86466-79R is located just above a module fan and the lower AC heat sink assembly and just below the DC heat sink assembly. The 86466-79R installs onto the back panel of the control cabinet using the mounting brackets and bolts on the top and bottom of the unit.

For more information about the installation of the 86466-79R, please refer to the Reliance Electric Instruction Manual: D2-3024-1.