The Allen-Bradley 1336-RFB-30-A4 drive filter is a part that provides a 3-phase, Pulse Width Modulated (PWM) adjustable frequency power output which in turn offers an adjustable motor speed. It has a voltage tolerance of -10% of minimum and +10% of maximum and its frequency tolerance is 48-62 Hz. It has input phases of 3-phase input power which offers the total rating for all drives. Single-phase operation can be achieved for A & B frame drives at a 50% derating in output. As for the displacement power factor, A1-A3 frame drives is 0.8 standard or 0.95 with the optional inductor; A4 frame & above is 0.95 standard. Its efficiency is 97.5% at rated Amps.

The 1336-RFB-30-A4 has a planner construction feature that enhances reliability by eliminating many of the internal connectors and cables. Its laminar bus design removes internal inductance, therefore eliminating snubber losses and the enhancing performance of the IGBT. It has a removable human-machine interface which offers flexibility and easy programming of operations. The thermal dissipation management feature reduces heat to maximize reliability. The 1336-RFB-30-A4 drive filter package comes with Dynamic Current Control which consists of proactive current limit control that decreases trips multiple sensors, the capability of starting low inductance motors, and excellent torque production. It has a separate power and logic module and this arrangement reduces noise while offering consistent and reliable operation. The 1336-RFB-30-A4 is made for working with variable torque, square law, and cubed law loads. When the 1336-RFB-30-A4 is working with square law loads, its torque will vary directly with the change in the motor speed while the horsepower output will vary at the squared value of the speed change. When the 1336-RFB-30-A4 works with cubed law loads, its torque will vary at the squared value of the speed change while the horsepower varies at the cubed value of the speed change.