Cathodic Protection Rectifiers

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Dynapower’s Cathodic Protection Rectifiers have been designed specially for cathodic protection processes. From small to large scale operations, Dynapower’s Cathodic Protection Rectifiers are employed and trusted worldwide to ensure the prevention of metal corrosion.

Units are available in air, water, and oil cooled configurations. All cathodic protection rectifiers are designed and built to the highest standards to ensure reliability and longevity. Multiple control options give you the flexibility to choose the right control package for you. From standard analog controls to a touchscreen controller, choose how much control you want over you process. Each control package gives you the precision and consistency you require.

Input Voltage:
208-600 VAC ±5%, 3 Phase, 50/60 Hz
Output Voltage:
Up to 800V (higher outputs available upon request)
Output Current:
Up to 2,000A (higher outputs available upon request)
Ambient Temp:
Max 40°C (higher temperatures available upon request)
Air, water, or oil
Control Precision:
Voltage/current ±1% (higher precision available upon request)
DC Ripple: 
<5% at full rated output
Regulation Range:
Stepless at constant voltage or current 10-100%
Duty Ratio:
Designed for continuous operation at rated output
Available Protections: 
Over Current, Over Voltage, Over Temperature, Short Circuit, Voltage Stabilization (±0.5%), Electronic Peak Current Detector, Step-Start Circuit on AC line

  • Protocol compatibility with Profinet or Ethernet/IP, etc.
  • Filter to reduce ripple to as low as 1%
  • Digital Ampere-Hour/Minute Meter
  • Variable Timer — turn off rectifier, sound an alarm, Illuminate a light at the end of process cycle
  • Variable Ramp


Perfect for processes that do not require specialized outputs, the Analog Control Package was designed to be as reliable and straightforward as possible ensuring you get the unit control you need while withstanding the harshest environments.

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A programmable controller designed to be flexible, reliable, and user-friendly. Precision digital controls and intuitive recipe storage ensure users get the exact unit output required by their processes, making it quick and easy to automate.

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A programmable touchscreen controller designed to give users maximum control over their units. With an easy to navigate graphic display and user friendly recipe storage, automating your processes has never been faster or easier.

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