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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, SM1500-CP-30 and the soon to be released SM70-CP-450 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 70-CP-450 (Bi-directional operation, Constant Power)

0 - 70 V

-450 .. 450 A

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
    • Easy Master/Slave parallel & series operation up to 300kW
    • 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
      • Isolated analog programming interface
      • Interface with isolated contacts
      • Master/Slave interface
      • Serial interface with multi protocols: RS232, RS485, RS422, USB (device)
  • Master/Slave assembly kit SM15K

    Connection sets for Master/Slave set-ups using the M/S PAR and the M/S SER assembly kits.

      • M/S PAR SET C2 — for 2 units in parallel
      • M/S PAR SET C3 — for 3 units in parallel
      • M/S PAR SET C4 — for 4 units in parallel
      • M/S PAR SET C5 — for 5 units in parallel
      • M/S PAR SET C6 — for 6 units in parallel
      • M/S PAR SET C7 — for 7 units in parallel
      • M/S PAR SET C8 — for 8 units in parallel
      • M/S PAR SET C9 — for 9 units in parallel
      • M/S PAR SET C10 — for 10 units in parallel
      • M/S PAR SET C11 — for 11 units in parallel
      • M/S PAR SET C12 — for 12 units in parallel
      • M/S SER SET BA — for 2 units in series
      • M/S SER SET BB — for 3-6 units in series
Downloads Document format Size
Data sheet SM15K series PDF (Acrobat Reader) 200.6 KB
Quick start manual SM15K-series PDF (Acrobat Reader) 156.5 KB
Product manual SM15K-series PDF (Acrobat Reader) 1.9 MB
Data sheet Interfaces SM15K series PDF (Acrobat Reader) 381.5 KB
Manual Interfaces SM15K series PDF (Acrobat Reader) 809.6 KB
Firmware H0_P0107 SM15K-series Firmware 10.9 MB
Release note firmware H0_P0107 SM15K-series PDF (Acrobat Reader) 36.6 KB
Manual Master/Slave interface SM15K series PDF (Acrobat Reader) 2.4 MB
Application note Master/Slave operation SM15K-series PDF (Acrobat Reader) 11.8 MB
Manual Ethernet and Sequencer programming SM15K-series PDF (Acrobat Reader) 695.7 KB
DE Configurator SM15K-series Software 34.1 MB
Application note Safe operation power supply PDF (Acrobat Reader) 130.5 KB
Sales Department


T: +31 111 413656
E: by filling out the contact form


Contact form
Product Support


T: +31 111 413656
E: by filling out the contact form


Contact form