Sorensen DCR55

The Sorensen DCR55 series comprises high-power programmable DC power supplies engineered for burn-in testing, industrial processes, and laboratory research. These units deliver precise voltage and current control across multiple output configurations, with output power ranging from 3 kW to 10 kW depending on model selection. Built-in automatic V/I crossover, remote sensing capability, and overvoltage protection ensure stable operation in demanding environments requiring consistent and regulated power delivery.

– Technical Specifications

Output Voltage & Current

• Output voltage: 0–55 VDC (model dependent); select models to 600 VDC
• Output current: Up to 55 A, 90 A, or 180 A depending on model
• Output power: 3 kW, 5 kW, or 10 kW (model dependent)

Regulation & Stability

• Voltage regulation (line and load combined): 0.1% of setting or specification, whichever is greater; select DCR-B models offer 0.05% or 10 mV, whichever is greater
• Current regulation (line and load combined): 0.1% of output current setting or specification, whichever is greater
• Voltage temperature coefficient: 0.02%/°C of Emax
• Current temperature coefficient: 0.04%/°C of Io max
• Output stability: Typically 0.2% Io max over 8 hours after 30-minute warm-up

Transient & Noise Performance

• Transient response: 40–50 ms for 50% load change
• Ripple and noise: 20–30 mV RMS typical; 150 mV RMS maximum (model dependent)
• Voltage PARD: 0.05% of Emax

Input & Operating Conditions

• Input voltage: 480 Vac ± 10% (10 kW models); 208 Vac ± 10% (5 kW models); 190–250 Vac (DCS models)
• Input frequency: 60 Hz standard; 50 Hz available as option
• Three-phase input (degraded single-phase capability for DCS models)
• Efficiency: 58%–67% at full rated output (model dependent)

Control & Protection

• Automatic V/I crossover with indicators
• Remote voltage and current setting
• Overvoltage protection shutdown capability
• Remote sensing

– Key Features

• Multiple output configurations support diverse test requirements
• Automatic crossover between constant-voltage and constant-current modes
• Programmable remote control for voltage, current, and protection functions
• Built-in sensing for compensation of lead-induced voltage drop

– Typical Applications

• Accelerated burn-in testing of electronic components and assemblies
• Industrial power conditioning and process control
• Research and development bench applications requiring stable, programmable sources

– Compatibility & Integration

DCR55 models interface via remote control functions for voltage/current adjustment and overvoltage protection management, enabling integration into automated test systems and production environments.