EA-EL 9500-30 B 3U Programmable Electronic DC Load – 500V / 30A / 1200W

The EA-EL 9500-30 B 3U is a programmable DC load from the EA-EL 9000 B series, offering 0‑500V, 0‑30A, and 1200W continuous power in a 3U 19" rack enclosure. It supports four operating modes: constant current (CC), constant voltage (CV), constant power (CP), and constant resistance (CR). An FPGA‑based digital controller enables an arbitrary waveform generator, XY function for nonlinear resistance simulation, battery discharge testing (with Ah recording), and MPP tracking for photovoltaic applications (including a 100‑point irradiation table).

The unit features a color TFT touch panel with multilingual support (EN, DE, RU, CN) and includes galvanically isolated USB and analog interfaces (0‑5V/0‑10V). A slot accepts pluggable fieldbus modules (CAN, Ethernet, Profibus, etc.). Rear connections provide DC input, remote sense, Share Bus for parallel/two‑quadrant operation, and master‑slave bus. Accuracy: voltage ≤0.1%, current ≤0.2%, power ≤0.5%. Rise time ≤50µs. Protections: OVP, OCP, OPP, OT. Cooling by temperature‑controlled fans; operating temp 0‑50°C. Weight 9kg, dimensions 19"×3U×464mm. Remote control via SCPI/ModBus; Windows software and LabView VIs included.

Key Features

• 500V / 30A / 1200W with CV, CC, CP, CR modes.
• Advanced functions: arbitrary waveform generator, nonlinear resistance simulation.
• Battery test & MPPT: Ah recording, 100‑point PV simulation.
• Intuitive touch panel with multilingual HMI.
• Interfaces: USB, analog, and slot for fieldbus modules (CAN, Ethernet, etc.).
• Scalable: master‑slave parallel and Share Bus.
• High accuracy: ≤0.1% voltage, ≤0.2% current.
• Included software with SCPI/ModBus support.