The Sorensen DCR600 series (part of the rugged DCR-B family) consists of high-power, phase-controlled SCR DC power supplies designed for bench or rack use. Offering a regulated output voltage of up to 600 VDC, this series includes the DCR 600-1.5B, DCR 600-3B, and DCR 600-4.5B models, providing 900W, 1800W, and 2700W of stable output power. These units feature automatic crossover between constant-voltage and constant-current modes, excellent transient response, low ripple, and remote programming, making them ideal for industrial testing, burn-in, and process control applications.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | Analog programming terminal strip (standard); GPIB/RS-232 available via optional external programmer |
| Display | Dual analog meters for voltage and current (standard); digital meters available as a factory option |
| Warranty | 5 Years |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 115 VAC / 208 VAC / 220 VAC / 230 VAC ±10% (model and option dependent), single-phase, 57-63 Hz |
| Operating Temperature | 0 to +70 °C (derated above 40 °C) |
| Dimensions (W×H×D) | 483 × 133 × 457 mm (DCR 600-1.5B) / 483 × 178 × 508 mm (DCR 600-3B & DCR 600-4.5B) |
| Weight | 18.1 / 33.1 / 44.9 kg (model dependent) |
Output Specifications
| Parameter | Value |
|---|---|
| Output Voltage Range | 0 - 600 VDC |
| Output Current Range (DCR 600-1.5B) | 0 - 1.5 ADC |
| Output Current Range (DCR 600-3B) | 0 - 3.0 ADC |
| Output Current Range (DCR 600-4.5B) | 0 - 4.5 ADC |
| Maximum Output Power (DCR 600-1.5B) | 900 W |
| Maximum Output Power (DCR 600-3B) | 1800 W |
| Maximum Output Power (DCR 600-4.5B) | 2700 W |
| Line Regulation (Voltage Mode) | 0.05% of maximum output voltage (300 mV) for a ±10% line change |
| Load Regulation (Voltage Mode) | 0.05% of maximum output voltage (300 mV) for a zero to full load change |
| Line Regulation (Current Mode) | 0.25% of maximum output current for a ±10% line change |
| Load Regulation (Current Mode) | 0.25% of maximum output current for a zero to 100% compliance voltage change |
| Ripple and Noise (Voltage, RMS) | 1500 mV RMS (600V models) |
| Transient Response Time | 50 ms typical for recovery to within 1% of output setting for a 50% step load change |
| Temperature Coefficient (Voltage) | 0.015% of maximum output voltage per °C (90 mV/°C) |
| Temperature Coefficient (Current) | 0.03% of maximum output current per °C |
| Operating Modes | Constant Voltage (CV) and Constant Current (CC) with automatic crossover |
AC Input Specifications
| Parameter | Value |
|---|---|
| Input Phase | Single-phase |
| Input Voltage (DCR 600-1.5B) | 115 VAC nominal (103 - 127 VAC) standard; 208/220/230 VAC optional |
| Input Voltage (DCR 600-3B) | 208 VAC nominal (187 - 229 VAC) standard; 115/220/230 VAC optional |
| Input Voltage (DCR 600-4.5B) | 208 VAC nominal (187 - 229 VAC) standard; 220/230 VAC optional |
| Input Frequency Range | 57 - 63 Hz standard (47 - 63 Hz optional) |
| Efficiency (DCR 600-1.5B) | Approximately 82% at full load |
| Efficiency (DCR 600-3B) | Approximately 83% at full load |
| Efficiency (DCR 600-4.5B) | Approximately 84% at full load |
Protection Features
| Parameter | Value |
|---|---|
| Over Voltage Protection (OVP) Range | 60 - 660 VDC |
| Over Voltage Protection Type | Adjustable SCR Crowbar with front panel screwdriver adjustment |
| Over Temperature Protection (OTP) | Thermal shutdown via internal thermostats, automatic reset |
| AC Input Protection | Front panel electromagnetic power circuit breaker |
| Remote Sensing | Rear terminal connections compensate for lead voltage drops |
Control and Interfaces
| Parameter | Value |
|---|---|
| Front Panel Controls | FINE and COARSE VOLTAGE adjust, FINE and COARSE CURRENT adjust, power circuit breaker, OVP adjustment screwdriver slot |
| Remote Voltage Programming | 0 - 10 VDC |
| Remote Resistance Programming | Supported (via external resistance) |
| Series Operation | Supported; multiple units can be connected in series to increase total output voltage |
| Parallel Operation | Supported; units can be connected in direct or master/slave parallel configurations to increase total output current |
| Remote Shutdown | Supported via external switch contact closure |
Environmental
| Parameter | Value |
|---|---|
| Storage Temperature Range | -40 to +85 °C |
| Operating Temperature Derating | Derate linearly from 100% at 40°C to 50% at 70°C |
| Operating Humidity | Up to 95% RH (non-condensing) |
Physical Characteristics
| Parameter | Value |
|---|---|
| Form Factor | 19-inch rackmount |
| Rack Units (DCR 600-1.5B) | 3U |
| Rack Units (DCR 600-3B) | 4U |
| Rack Units (DCR 600-4.5B) | 4U |
| Chassis Width | 19.0 in (483 mm) |
| Chassis Height (DCR 600-1.5B) | 5.25 in (133 mm) |
| Chassis Height (DCR 600-3B & DCR 600-4.5B) | 7.0 in (178 mm) |
| Chassis Depth (DCR 600-1.5B) | 18.0 in (457 mm) |
| Chassis Depth (DCR 600-3B & DCR 600-4.5B) | 20.0 in (508 mm) |
| Weight (DCR 600-1.5B) | 27.2 kg (60 lbs) |
| Weight (DCR 600-3B) | 49.9 kg (110 lbs) |
| Weight (DCR 600-4.5B) | 52.2 kg (115 lbs) |
| Output Terminals | Rear-panel barrier terminal strip standard |
| AC Input Terminals | Rear-panel barrier terminal strip with protective cover |
Remote Programming
| Parameter | Value |
|---|---|
| Voltage Programming Coefficient (Resistance) | 1000 ohms/V |
Performance
| Parameter | Value |
|---|---|
| Remote Sensing Compensation | Up to 3 V per load lead |
| Warm-Up Time | 30 minutes |
Safety
| Parameter | Value |
|---|---|
| Maximum Float Voltage | ±600 VDC (output to chassis ground) |
Control & Programming
| Parameter | Value |
|---|---|
| Remote Voltage Programming Signal | 0-10 VDC |
| Remote Current Programming Signal | 0-10 VDC |
| GPIB Interface Option | Option M9C |
| Isolated Analog Interface Option | Option M51A |
Technology
Phase-controlled SCR (Silicon Controlled Rectifier)
Applications
Industrial testing, semiconductor burn-in, magnet power supply, process control, and product development