EA-PSI 10750-40 3U 10000W Programmable DC Power Supply

The EA-PSI 10750-40 3U is a high-performance programmable DC power supply from the EA Elektro Automatik PSI 10000 Series, delivering up to 750V output voltage, 40A output current, and 10000W output power in a compact 3U form factor. Designed for demanding applications such as battery test equipment, battery charger test, computer power supply testing, and industrial automation, this bench power supply combines precision, flexibility, and robust construction. With an integrated XY table generator and sequence programming, it can simulate real-world conditions and generate complex test sequences, eliminating additional equipment and reducing test setup time. The unit features an advanced function generator capable of sine, triangle, rectangle, trapezoid, arbitrary waveforms, and specialized profiles like DIN 40839, simple PV (photovoltaics), FC (fuel cell), and extended PV simulation per EN 50530. The built-in variable internal resistance (0.6 Ω to 1100 Ω) allows accurate simulation of batteries and fuel cells, while the low ripple of ≤200 mV RMS (BW 300 kHz) and ≤800 mV P-P (BW 20 MHz) ensures clean output. Efficiency reaches up to 95.5%, and the device includes comprehensive protections: OVP, OCP, OPP, overtemperature, and power fail. Remote control is supported via built-in USB, Ethernet, and a galvanically isolated analog interface, with optional modules for Profibus, Profinet, CANopen, ModBus TCP, and more. The intuitive 5" TFT touch screen and dual rotary knobs provide easy manual operation, and up to 64 units can be paralleled in master-slave mode for higher power systems with true summing of actual values.

Key Features

• High Power Density: 750V / 40A / 10000W output in a 3U 19" rack-mountable chassis, ideal for space-constrained test setups.
• Advanced Programmability: Fully programmable DC power supply with built-in function generator for sine, triangle, rectangle, trapezoid, arbitrary waveforms, DIN 40839, PV (EN 50530), and fuel cell simulation.
• Precise Control & Low Ripple: Voltage accuracy ≤0.05% FS, current accuracy ≤0.1% FS; ripple ≤200 mV RMS / ≤800 mV P-P ensures stable power for sensitive loads.
• Wide Resistance Simulation: Adjustable internal resistance from 0.6 Ω to 1100 Ω enables realistic battery and fuel cell emulation without external hardware.
• Versatile Remote Interfaces: Standard USB, Ethernet, and isolated analog interface; optional fieldbus modules (Profibus, Profinet, CANopen, etc.) for easy system integration.
• Master-Slave Parallel Operation: Connect up to 64 units for higher power systems with automatic current sharing and totalized actual values.
• Comprehensive Protection: OVP, OCP, OPP, overtemperature, and power fail alarms safeguard both the supply and connected equipment.
• Intuitive Touchscreen Operation: 5" color TFT touch display with two rotary knobs for quick manual adjustments and real-time monitoring.
• Data Logging & Sequence Programming: Front USB host for recording to USB stick and loading arbitrary sequences or XY tables, reducing test setup time.