The Electro Store

DCS50-40M16 - 50V 38A programmable power supply (Sorensen) - New/RFE


Sorensen / Elgar 50V 38A Programmable 2kW DC Power Supply, model number DCS50-40M16. These are new/RFE units that were removed from new custom power assemblies (see picture at bottom). They do not include the original box or certificate of conformance. They are in excellent condition and have some very minor marks around the mounting holes because they were previously mounted.

The front panel features a 10-turn current control knob with a locking shaft, along with a current monitor (100mv/Amp). The voltage (and current) can be monitored and controlled via the "programming, sense, and monitor connector, J3," located on the back of the unit. See product manual for details. These units were manufactured in a configuration without front panel meters and no front panel voltage control, as shown in the pictures. To view the full product manual for the DCS50-40 M16 unit (PDF, ~1MB), click here. No printed manuals are available for these units.

Manufacturer's Description:

The DCS Family of programmable power supplies incorporate current mode switching rates up to 100 kHz in high power density, low profile chassis. Utilizing unique packaging techniques, the DCS Family provides continuous full output power in any volt/amp combination within the rated output voltage and current limits.

  • Input Power:
    Voltage: 200-250VAC single phase, or 190-250VAC three phase
    Frequency: 47-63Hz
    Current draw with 2kW load: 14A RMS with 3 phase input, 20A RMS with single phase
  • Output Power:
    2000 watts maximum, 0 watts minimum
    Voltage internally set for a maximum compliance of 53V 1VDC
    Current adjustable from 0 to 38 amps DC
  • Response Time:
    Less than 1 ms recovery to 1% band for 30% step load changes from 70% to 100% or 100% to 70%
  • Drift:
    Less than 0.05% over 8 hours in voltage or current mode after 30 minute warmup period
  • Switching Frequency: Nominal 65kHz (130kHz output ripple)
  • Ripple Voltage: 200mV peak-to-peak, 20mV RMS, 20MHz limited
  • Dimensions:
    3.5" H x 19" W x 20" D
  • Weight:
    27 lbs.

Above: The DCS50-40M16 power supplies for sale were removed from new/surplus assemblies as pictured.

DCS50-40M16 - 50V 38A programmable power supply (Sorensen) - New/RFE