The 1336-BDB-SP27C board is a gate drive board that has been designed exclusively to be used with the variable frequency drives from the 1336 series (in the Plus I, Plus II, Force, and Impact subseries). This part has been designed by Allen-Bradley and it can be found in the accessories catalog for the 1336 series. The Allen-Bradley 1336-BDB-SP27C gate drive board is compatible with the Frame E 1336 drives that come with a voltage of 230 Volts AC and a Horsepower rating of 75 Horsepower. Without this board, any drive from the 1336 series will be unable to operate since it is related to the power input and frequency control of the drive. This part is important for the backlight of the human-machine interface that is provided by the drive.

The Allen-Bradley 1336-BDB-SP27C gate drive board is made up of a printed circuit board (PCB). As a circuit board, it should be referenced to a negative grounding so it can work properly after installation. The installation of this part is an advanced circuitry installation. It needs to be properly connected and technicians need to make sure it is not in contact with any electrostatic discharge source so that it can operate without inconveniences. The Allen-Bradley 1336-BDB-SP27C gate drive board is located in the front part of the drive in the PC board mounting frame, specifically under the main control board. This conjunction of circuits is in charge of controlling the power, frequency, and other functions related to the indicators and the human-machine interface. Also, without these parts, the drive will not be able to start operation.