Ametek / Elgar / Sorensen DCS40-75E 3 kW Power Supply

The Ametek/Elgar/Sorensen DCS40-75E is a 3 kW programmable DC power supply delivering 0–40 VDC at 0–75 ADC for demanding R&D, manufacturing, and automated test applications. Built in a compact 1U chassis, it combines precision voltage and current regulation with dual-mode operation, remote programming via Ethernet/RS-232/IEEE-488.2, and comprehensive protection. Ten-turn potentiometers enable high-resolution front-panel control, while simultaneous digital metering and selectable remote sensing accommodate varied test configurations.

Technical Specifications

• Voltage: 0–40 VDC


• Current: 0–75 ADC


• Power: 3 kW (3000 W)


• Line and load regulation: 0.2%


• Constant voltage ripple (RMS): 20 mV


• Constant voltage noise (peak-to-peak): 100 mV


• Transient response: 1 ms typical


• Meter accuracy: ±1% of full scale + 1 count


• Voltage drift: 0.05% Vmax typical


• Temperature coefficient (voltage): 0.02%/°C typical Input Power


• AC input: 190–250 VAC, three-phase, 47–63 Hz (configurable for 200–250 VAC single-phase at 2500 W reduced capacity)


• Input current: 14 A (three-phase), 20 A (single-phase) Remote Sensing & Programming


• Maximum sense line drop: 1 V/line for 3 kW models


• Voltage programming: LXI-compliant Ethernet LAN / RS-232C (16-bit); IEEE-488.2 / RS-232C (12-bit); isolated analog (optional)


• Programming constant (voltage): 125 Ω/V; 0–10 V or 0–5 V = 0–100% V₀

Key Features

• Constant Voltage and Constant Current modes with automatic crossover


• Ten-turn potentiometers for precise output control


• Simultaneous voltage and current digital display


• Over-voltage protection adjustable 5–110% of rated output


• External TTL/AC/DC shutdown and remote start/stop (TTL or 12–250 VAC / 12–130 VDC)


• Over-temperature protection with LED indicators and automatic shutdown


• Internal fan cooling


• Stackable in parallel or series configurations

Safety & Standards UL/CSA 61010 and IEC/EN 61010-1 certified; CE compliant (LVD and EMC directives).

Physical Specifications

• Dimensions: 482 mm W × 445 mm D × 87 mm H (1U profile)


• Weight: 33 lb