expandable water-cooled Water-Cooled Switchmode SMPS


Dynapower offers the latest generation of water-cooled switchmode DC power supplies. The modular design of the water-cooled expandable switchmode power supply allows for the easy control of multiple separate processes or a single process requiring a higher output. Featuring an innovative design that provides users with an operational and installation advantages, all Dynapower water-cooled switchmode power supplies provide the reliability and functionality you need, while maximizing your space and cost savings.

The switchmode DC power supply is a solid state AC to DC power conversion system. The system functions by first rectifying the AC input to an unregulated DC voltage. This intermediate DC voltage is then chopped using pulse-width modulation through an H-Bridge configuration into a high-frequency transformer. The output of the transformer is rectified and filtered to provide a precisely controlled high current DC output with <2% AC Vrms content. The high switching frequency enables a smaller package, less ripple, higher efficiency, and provides for a faster control loop.


Supply Voltage: 480 VAC ± 10%, 60 Hz, 3 Phs

Power Factor: .93 throughout operating range

Efficiency: .90 @ rated output

DC Ripple: 2% at ALL outputs

Control Precision:  Voltage/current < ± 1%

Dimensions: 39.5 x 39.5 x 68.5” / With bus bars 47 x 39.5 x 68.5”


  • Sealed water-cooled switchmode power supplies
  • Modular internal design for any combination of power modules up to 10,000A per unit.
  • High Efficiency and Power Factor
  • Low Ripple
  • 3-year Warranty

Regulation Range: 10-100% of rated output
Duty Ration: Designed for continuous operation at rated load
Operating Temperature:  Max 122° F
Cooling:  Water Cooled Water inlet temperature: not below actual dew point, but max 97° F. Water pressure: 20 psi
Protection Class: NEMA 2 (designed to)
Protection: Over-Current, Over-Voltage, Over-Temperature, Short Circuit, Module Failure

The switchmode power supplies are designed to be simple to operate.  All output adjustments are made from the control keypad located on the front panel of the unit. Controls include:

• Power on/off switch
• Voltage and current set-point control push-buttons
• Alphanumeric display for voltage and current set-points
• Voltage and current mode indication lights
• Digital DC ammeter
• Digital DC voltmeter

Remote Communication Interfaces:
• Modbus RTU/RS-485 computer interface
• Modbus TCP/Ethernet Interface
• Analog/Digital Interface. Two control,  and two status signals (0-10 VDC or 4-20mA)

• Polarity Reversal
• N-1 protection for module redundancy. If a single module was to fail allows for unit to be able to operate at a lower power to prevent goods in the process of being finished from being damaged
• Remote control box “basic version” with analog or digital, potentiometers for tank side control in the event Switchmode is not co-located with process tanks
• RS-232 interface for control of one power supply
• Protocol compatibility with Profinet or Ethernet/IP, etc.
• Touchscreen controller via Ethernet connection