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15kW Bi-directional DC Power Supplies


Programmable bi-directional DC power supply

With our latest bi-directional power supply models SM500-CP-90 and SM1500-CP-30 we have extended our capabilities to a higher level of 15kW per unit. Standard feature for this supply is Delta’s new Power Recovery [Regeneration] Technology: in sink mode these bi-directional power supplies can return full power back into the grid and, thanks to an efficiency of 95%, there is no need for expensive water cooling systems. The flexible output covers the output range of five separate power supplies with a traditional rectangular VI-curve.



Need more power?

Now available: Plug&Play module to configure Master/Slave operation for high power systems up to 300kW.

Unit Voltage range Current range
SM 500-CP-90 (Bi-directional operation, Constant Power)

0 - 500 V

-90 .. 90 A

SM 1500-CP-30 (Bi-directional operation, Constant Power)

0 - 1500 V

-30 .. 30 A


    • Bi-directional power supply with standard 15 kW source and sink
    • Flexible output with Constant Power characteristics
    • Power Regeneration Technology: in sink mode the PSU returns the energy back into the grid
    • Very low heat dissipation. Efficiency is more than 95%. No need for expensive cooling systems.
    • Excellent dynamic responses to load changes including all-digital control to adapt regulation to match load type
    • Designed for long life at full power
    • Protected against all overload and short circuit conditions


    • Operation on wide range of 3 phase AC input voltages
    • Ethernet interface, built-in sequencer and web interface are included
    • Large user display, menu driven operations
    • Durable digital encoders for voltage and current adjustment and menu operation
    • EMC surpasses CE requirements: low emission and high immunity
    • Low audible noise: temperature controlled cooling fans




Dimensions and weight:

Width = 19

Height = 3 U

Depth = 591 mm

Weight = 27 kg


  • Software Control and Interfaces

    Plug&Play interfaces:

      • Digital I/O interface
      • Interface with isolated contacts
      • Master/Slave interface (parallel operation)
      • Serial interface with multi protocols: RS232, RS485, RS422, USB (device)
Downloads Document format Size
Data sheet SM15K-series PDF (Acrobat Reader) 197.7 KB
Data sheet Interfaces SM15K-series PDF (Acrobat Reader) 126.5 KB
Quick start manual SM15K-series PDF (Acrobat Reader) 156.2 KB
Product manual SM15K-series PDF (Acrobat Reader) 1.9 MB
Manual Interfaces SM15K-series PDF (Acrobat Reader) 548.3 KB
Firmware H0_P0105 SM15K-series Firmware 10.8 MB
Firmware release note H0_P0105 SM15K-series PDF (Acrobat Reader) 34.8 KB
Manual Master/Slave Interface SM15K-series PDF (Acrobat Reader) 548.3 KB
Manual Ethernet & Sequencer Programming SM15K-series PDF (Acrobat Reader) 688.0 KB
DE Configurator SM15K-series Software 34.1 MB
Application note Master/Slave operation SM15K-series PDF (Acrobat Reader) 11.0 MB
Application note Safe Operation Power Supply PDF (Acrobat Reader) 130.0 KB
Sales Department


T: +31 111 413656
F: +31 111 416919

E: by filling out the contact form


Contact form
Product Support


T: +31 111 413656
F: +31 111 416919 

E: by filling out the contact form


Contact form