Low Voltage Power Supplies

CoolX1800 Series

1800 W Intelligent, Modular Power Supplies

Advanced Energy’s Excelsys CoolX1800 series of high density, multiple-output modular power supplies is ideal for medical, life science, industrial, and harsh-environmental applications. The power supplies support series and parallel configurations for ultimate flexibility and simultaneous O/P DC power. 

  • 1800 W in a compact package
  • Industrial and medical safety approvals
  • 24 W-standby power
  • PMBus™ for digital communications and control
  • Up to 12 isolated outputs (1850 VAC)
  • Overview
  • Technical Specs
  • Documents
  • Accessories
  • Service & Support
  • Distributors


Access incredible power via a compact supply. The modular Excelsys CoolX®1800 offers 1800 W in a 267 x 127 x 41 mm package (approximately 50% more power than the industry standard). Outputs can be parallel connected for higher currents and series connected for higher voltages (up to 348 VDC).

The series is available in two base models. The CX18S has the IEC60950 (second edition) certification for industrial applications and will comply with the upcoming IEC62368-1 standard. The CX18M carries IEC60601-1 (third edition) and the IEC60601-1-2 (fourth edition, EMC) standards for medical applications. Both can be populated with up to six CoolMods, providing up to 12 isolated DC outputs that range from 1.0 volts to 615 volts.


  • High Power Density: 1800 W in a 267 x 127 x 41 mm package
  • Full Safety Agency Approvals: See Technical Specs for details
  • Intelligent Digital Power: Access maximum flexibility with analog and digital control (PMBus™)
  • User- and Field-Configurable: Configure outputs to setpoint voltages; connect in parallel/series for higher output current and/or voltages
  • High Reliability and Efficiency: Help ensure quality, reliability, and a low total cost of ownership


  • 93% efficiency
  • Five-year warranty
  • MTBF figures of > 200000
  • Safety approved to 5000 m altitude
  • Electrical

    Input Voltage Range

    85 to 264 VAC

    Input Current

    Up to 25 A (depending on model)

    Output Power

    Up to 1800 W (depending on model)

    Output Voltage

    1 to 348 (depending on model)

    Ripple and Noise

    1% of nominal

  • Environmental

    Operating Temperature Range

    -40 to 70°C

    Storage Temperature Range

    -40 to +85°C

    Relative Humidity

    5% to 95%

  • Mechanical

    L x W x H

    267 mm x 127 mm x 41 mm (10.5 in x 5 in x 1U)


    1.6 kgs (fully loaded)

  • Control

    Digital and analog

  • powerMods

    See data sheet  for more details. 



    High Power Modules (3 Slot)

    CmE, CmF

    Dual Output Modules (1 Slot)

    CmG (version 1 and 2), CmH (version 1 and 2)


    Wide Trim Modules (1 Slot)

    CmM, CmN, CmP, CmQ

  • Certifications and Standards

    CX18S - Industrial

    • IEC60950 (second edition) 
    • IEC62368-1

    CX18M - Medical

    • IEC60601-1 (third edition)
    • IEC60601-1-2 (fourth edition, EMC) 

Specifications are subject to change without notice. Not all options and accessories are available for all models and configurations. Dimensions listed generally refer to standard configurations and module bodies only. Please confirm technical specifications and customizations with a sales representative. Advanced Energy is not responsible for errors or omissions.


Accessory Thumbnail Generic Image


The CoolX series PMBus interface facilitates operating parameter communications (e.g. output voltage, output current, and internal temperature) with other PMBus enabled devices.

Global Support & Services

Maximize fab productivity and capital equipment ROI with world-class support through each product lifecycle stage — from startup to long-term operation. Our service offerings are based on more than three decades of precision power and applications expertise.

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Applications Support & Consulting

Accelerate tool installations and process development programs, or address specific applications concerns with Advanced Energy's dedicated applications consultants and engineering staff. Benefit from on-site reviews, analyses, and consultations.

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Decrease variability in maintenance costs and provide additional cost protection. Advanced Energy offers whole-box extended warranties.

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Product Support

U.S.: +1 800 446 9167
Asia: +86 29 8874 1895
China: 400 8899 130
EMEA: +44 800 032 1546
U.K.: 08000 321 546

Thin Film Support
Thermal Product Support
Other Technical Support


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Compare Products

Maximum Power

1800 W

1000 W

600 W

Up to 1200 W

Isolated Outputs

Up to 12

Up to 12

Up to 8

Up to 12

Cooling Methods

Variable Fan Speed Control

Natural, Convection-Cooled

Natural, Convection-Cooled


Dimensions (millimeters)

262 x 127 x 41

165.1 x 254  x 39.1

215.9 x 114.3 x 39.1

UX4: 260 x 89 x 1U
UX6: 260 x 127 x 1U

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