• Three voltage ranges (150 V, 600 V, 1200 V) with single-unit power from 2 kW to 54 kW; master-slave parallel expansion up to 600 kW with current sharing.
• High power density: 6 kW in a 4U unit; 4U modules rated up to 600 A (150 V).
• Ultra-low on-resistance (~0.7 mΩ on the 150 V model) for low-voltage, high-current loading, down to 0.075 V at 60 A (low range) / 0.75 V at 600 A on the 150 V model.
• Dynamic loading up to 30 kHz (IT8900G, 150 V models) with CC slew rates to 30 A/µs and minimum rise time ≈12 µs; IT8900L dynamic response to 10 kHz.
• Working modes: IT8900G offers eight (CC, CV, CR, CP, CV+CC, CV+CR, CR+CC, CP+CC); IT8900L offers four (CC, CV, CR, CP).
• 500 kHz high-speed voltage and current sampling; rise/fall time measurement with resolution up to 10 µs; adjustable CV loop speed to match different supplies.
• Test functions: battery discharge (CC/CR/CP with cut-off voltage, capacity, time), OCP/OPP, short-circuit simulation, list/timing programming, automatic test, soft power on/off, and I-monitor.
• Built-in LAN, USB, RS232, GPIB, CAN, and external analog interfaces (SCPI); full protection (OVP, OCP, OPP, OTP, current-oscillation, current/power limit, fan-blocking, reverse alarm); power-failure memory for 100 groups.

• Server power supply, high-voltage UPS, and communication power supply testing.
• DC-DC, AC-DC, and power-module validation, including transient/dynamic response.
• Fuel cell, power battery, and lead-acid battery discharge characterization.
• Supercapacitor, solar cell, and other low-voltage, high-current device testing.
• Virtual-load testing for renewable sources (solar arrays, wind generation).
• DC charging pile and on-board charger (OBC) testing.
• EV battery and battery-protection-board OCP/OPP testing.
• Fuse and relay aging tests; rise/fall and holding-time measurement.
• Industrial motor and smart-manufacturing safety testing (AGVs/unmanned trucks, robots).

• Voltage Range: 150 V / 600 V / 1200 V
• Power: 2 kW to 54 kW per unit
• Parallel Capability: Up to 600 kW (master-slave with current sharing, CV operation in parallel)
• Power Density: 6 kW per 4U unit; 4U module current up to 600 A (150 V)
• On-Resistance: about 0.7 mΩ (150 V model)
• Sampling Rate: 500 kHz voltage and current
• Time Measurement Resolution: Up to 10 µs (rise/fall)
• Operating Modes: 8 (IT8900G) / 4 (IT8900L)
• Dynamic Response: Up to 30 kHz (IT8900G, 150 V models) / 10 kHz (IT8900L)
• Functions: battery discharge, OCP/OPP, short-circuit, list/timing, automatic test, soft on/off, I-monitor
• External Analog Control: 0-10 V (PLC) for 0-100% CC/CV, about 10 µs response, 1% accuracy; 0-4.2 V sine input for dynamic loading 0-100 A (below 10 kHz)
• Protection: OVP, OCP, OPP, OTP, current-oscillation, current limit, power limit, fan-blocking, reverse alarm
• Memory: power-failure memory, 100 groups
• Communication Interfaces: LAN, USB, RS232, GPIB, CAN, external analog; SCPI

The ITECH IT8900G/L Series is a high-speed, high-power DC electronic load built for laboratories and production lines that validate power supplies, batteries, and power-electronic modules under realistic load conditions. Three voltage ranges (150 V, 600 V, and 1200 V) cover single-unit power from 2 kW to 54 kW, and master-slave paralleling with current sharing extends total system power to 600 kW, including operation in CV mode.

A high power density of 6 kW in a 4U unit and ultra-low on-resistance (about 0.7 mΩ on the 150 V model) let the load sink high current at low voltage (the 150 V model loads down to 0.075 V at 60 A), which is exactly where fuel cells, supercapacitors, solar cells, and DC-DC converters are difficult to test. The IT8900G adds dynamic loading up to 30 kHz (150 V models) and current slew rates to 30 A/µs, reproducing the transients that switching supplies and DC-DC converters generate; the IT8900L covers the same ranges with a 10 kHz dynamic response.

Eight working modes (G-series) including CC, CV, CR, CP and combined modes, plus battery-discharge, OCP/OPP, short-circuit, list, and automatic test functions, cover a broad test matrix. Built-in LAN, USB, RS232, GPIB, CAN, and analog interfaces support SCPI control and system integration.