This document provides information on the MPC double C-face power-off brakes for various motor frame sizes. It includes specifications on torque, inertia, weight, dimensions, electrical properties and ordering information. The MPC brakes are power-off modules that mount on C-face motors and couple to C-face gear reducers to create brake/motor packages for smaller servo and stepper motors. Specifications and part numbering information is provided for the MPC17, MPC23, MPC34 and MPC42 models.