The 1336E-BRF50-AA-EN-L9E drive is a user-adjustable speed controller manufactured by Allen-Bradley. It employs a controlled minimum dwell time to give the transient voltage enough time to decay which in turn minimizes the motor voltage for effectively reducing voltage reflection. Note that without voltage reflection, the distance between the motor and the controller can be increased without the need for an output reactor. Note that without a controlled dwell time, voltage transients (reflected) can be more than the insulation rating of the connected motor when the distance between the 1336E-BRF50-AA-EN-L9E and the motor is less than 500 feet. Where an output reactor is used, the motor voltage is lowered due to the voltage drop across the reactor. The drop in the effective motor voltage will cause reduced motor torque.

The Allen-Bradley 1336E-BRF50-AA-EN-L9E is supplied with an English instruction set which helps in mounting, installing, monitoring, troubleshooting, maintaining, and repairing procedures. However, the installation should be done by a qualified technician since it does not have complete information on the 1336E-BRF50-AA-EN-L9E. To minimize the common mode noise, the controller uses a common mode core at its output. The reduction in common mode noise also helps in reducing the interference that the 1336E-BRF50-AA-EN-L9E causes to the other electronic devices that are used on the industrial floor. The 1336E-BRF50-AA-EN-L9E, like other controllers in the 1336 IMPACT family, is designed to dissipate excess heat into the environment. Therefore, when mounting the controller, it is recommended that a spacing of 152.4 millimeters be left between the 1336E-BRF50-AA-EN-L9E and the nearest device that is mounted either below it or on top of it. For the sides, a spacing of 101.6 millimeters between the drive and other devices should be provided.