The Sorensen DCR60-45B is a 2700 W DC power supply engineered for industrial and laboratory applications demanding stable, precise output and fast transient response. Part of the DCR-B series, this unit combines an SCR-controlled input preregulator with dual-mode operation (constant voltage and constant current with automatic crossover) to support extensive testing, burn-in, and experimental work.
Technical Specifications
Output
• Voltage: 0–60 Vdc
• Current: 0–45 A
• Power: 2700 W
• Voltage regulation (line & load combined): 0.05% or 10 mV, whichever is greater
• Typical regulation: 0.03% (line and load)
• Current stability: 0.15% of Imax over 8 hours (after 30-minute warm-up)
• Voltage stability: 0.1% of Emax over 8 hours (after 30-minute warm-up)
• Temperature coefficient: 0.015%/°C of Emax; 0.03%/°C of Imax
• Transient response: 50 ms typical (50% load change)
• Output ripple: 65–1200 mV RMS (model dependent)
Input
• AC input: 208 Vac, single phase (reconfigurable for 230/240 Vac on request)
• Frequency: 50/60 Hz, no derating
Remote Sensing
• Maximum voltage drop per load lead: 5% of Emax or 3 V, whichever is smaller
– Key Features
• Adjustable current limiting with automatic recovery (short-circuit protection)
• Overvoltage protection (crowbar) standard on all models
• Remote programming for voltage and current modes
• Front panel controls: power circuit breaker, FINE/COARSE voltage and current adjustment potentiometers
• Rear terminal strip connections for system output
• Automatic crossover between constant voltage and constant current operation
– Typical Applications
Burn-in testing, component characterization, electroplating, battery charging, and laboratory R&D requiring precision DC output with tight load and line regulation.
– Compatibility & Integration
Remote voltage and current programming interfaces enable integration into automated test systems. Output monitoring via barrier strip connections on control PCB supports external instrumentation and monitoring circuits.
