The 1336-SN-SP8B board is a DC snubber board for the Allen-Bradley 1336 series variable frequency AC drives. The main function of the snubber board is to suppress and reduce voltage transients from the power supply. The snubber board supports a three-phase power supply. It helps to reduce the dissipation of power in electronic circuits. The capacitor and resistor are connected in series across the transistor device. The 1336-SN-SP8B snubber board is found on the converter assembly of the drive. It is a spare part module for the AC drives. It can be easily installed and replaced from the backside of the drive. It is fully compatible with Allen-Bradley Force, Plus, Impact, and Plus II series of 1336 adjustable frequency AC drives. The drive is used to regulate the torque and speed of 3-phase devices. The snubber board comes with mounting screws on the copper plate which is used for the installation of the board. It is installed next to the main controls of the drive.

The Allen-Bradley 1336-SN-SP8B snubber board should be installed in a temperature range between 0 and 50 degrees Celsius. The heatsink of the drive should be properly removed during the installation of the snubber board. The variable frequency drive should be fully discharged and disconnected from power during the board replacement process. The 1336-SN-SP8B snubber board has an open enclosure and it should be protected from liquid sprays and splashes. The board comprises units that can be easily damaged by electrostatic discharge. The installation area should be free from static electricity and EMC noise.