The PDP-SX is an open frame power chassis for use with high voltage (140 to 500 Volts) edge mount style amplifiers. If a covered chassis is required, look to the EDP Series. Equipped with 3 open slots for amplifiers or accessory cards, the PDP Series chassis includes an unregulated Bus Voltage supply, a regulated Bias Supply, and pre-wired connections for amplifier inputs and outputs. Available options include a Shunt Regulator card (30A peak, 10A RMS @ 320 Volts), and Inductor Assemblies for use with low-inductance motors. The Shunt Regulator option should be ordered if PWM amplifiers are used and the application requires rapid acceleration or deceleration. All components are housed within the footprint of the chassis. PDP Series chassis do not require a transformer, and can be connected directly to single phase or three phase AC power lines (three phase is recommended to help minimize current ripple).

All PDP Series chassis come with cooling fans. Connections for AC input and amplifier outputs are made through a heavy-duty terminal block.


  • Pre-Wired Connections for Amplifier Inputs and Outputs
  • For Large, High-Power Amplifiers
  • Direct Connection to 120 or 240 VAC Input Power
  • Built In 12VDC Bias Supply
  • "Soft Start" Circuitry for Bus Voltage
  • Simplifies Amplifier Installation and Connection
  • Can House Brush Type or Brushless Amplifiers
  • Built-in Cooling Fans
  • Advanced Design, High Quality and High Reliability at a Lower Cost


Standard Models:


Max Num. of Axes 3 3
Weight 8.06 Lb (3.66 Kg) 8.06 Lb (3.66 Kg)
Dimensions 14.80 x 10.00 x 6.80"
376 x 254 x 173mm
14.80 x 10.00 x 6.80"
376 x 254 x 173mm
Bus Output Current* 30A Continuous 50A Continuous
Input Voltage

230 VAC Max

Bus Output Voltage

320 VDC Max

Bus Output Current* 30A Continuous 50A Continuous
Accessories See Chart Below
Recommended Amplifiers BPW-S1

*All ratings with forced air cooling to maintain 40C heat sink temperature. Failure to keep constant air flow to the heat sink will reduce the output current capacity and may result in damage to the unit.

Ordering Information

Product Order Number
PDP-S3-32/30 Chassis 320 VDC/30A WS-901-0001
PDP-S3-32/50 Chassis 320 VDC/50A WS-901-0008
ACC-C1A Shunt Regulator 30A Peak WS-011-0013
ACC-C2B 3 Phase Inductor Assembly WS-011-0011

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All data sheets are in Adobe Acrobat format.