SOR DCR20-25B DC Power Supply

DCR-B2 Series high power programmable DC power supplies have input SCR pre-regulator topology plus regulation and transient response performance suitable for all test and measurement applications. Twenty-nine models in eight voltage ranges offer from 0-10 to 0-600 Vdc with power levels from 400 to 2800 watts.

Features

• OVP "crowbar" standard on all DCR-B2 models.
• Rack mountable
• Series and Parallel Operation
• Remote voltage or resistance programming in voltage or current modes
• 50 or 60 Hz operation, without de-rating
• 0.03% line and load regulation (typical)
• 120 volt single phase input standard on models up to 1800 watt (208/220/230VAC optional)

INPUT
Voltage: 120 volt, single phase standard on all models up to 1800 watts. 208 volt single phase standard on all others. See below for other options.
Frequency: 47-63Hz
Isolation Voltage: 1000 volt DC input to output

OUTPUT
Regulation: 0.03% in voltage mode for a 100% load change and full line voltage change combined
Noise Ripple: 65 mV to 1200 mV , depending on model
Transient Response: 50mS typical for a 50% load change

GENERAL
Operating Temperature Range: 0 - 70° C, (derate power 1.67%/° C above 40° C)
Remote Programming: Resistance and voltage programming via rear terminal strip.
V/I Crossover: Automatic between voltage and current
Ambient Cooling: Convection cooled on 500 watt and 1800 watt, fan cooled on 1000 watt and 2800 watt models
Overvoltage Protection: Built-in adjustable crowbar.
Dimensions: 19"w x 20.25"d; Height - 3.5" all models less than 1600 Watts; 7.0" all others