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KIKUSUI PLZ-5WH2 Series High-Voltage High-Capacity Electronic Loads

KIKUSUI
Type: Electronic Load
Supplier / Manufacturer: KIKUSUI
Model: PLZ-5WH2 Series

The KIKUSUI PLZ-5WH2 Series is a programmable high-voltage DC electronic load for testing power supplies, batteries, converters, and other high-power DC systems.
Five models cover 1 kW to 20 kW with operating voltage up to 1000 V, CC/CR/CV/CP and ARB modes, high-speed transient functions, sequencing, measurement, data logging, and standard LAN, USB, and RS232C interfaces.

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High-Voltage DC Electronic Load for High-Power Test Systems

The KIKUSUI PLZ-5WH2 Series is a high-voltage, high-capacity programmable DC electronic load designed for evaluation of large power supplies, rechargeable batteries, converters, and other high-power DC devices.

Five models provide rated power from 1 kW to 20 kW and rated current from 20 A to 400 A, with a common operating voltage range of 10 V to 1000 V. The series supports constant current, constant resistance, constant voltage, constant power, and arbitrary I-V characteristic operation.

Up to 1000 V High-voltage operating range for power conversion and high-voltage DC device testing.
1 kW to 20 kW Five models cover benchtop through large-capacity test requirements.
Up to 20 A/µs Fast CC slew rate on the PLZ20005WH2 supports transient response testing.
Up to 100 kW Parallel Connect up to five PLZ-5WH2 units for as much as 100 kW and 2000 A.

Sequence programming, pulse and sine-current functions, synchronized operation, internal measurement and data logging, remote sensing, and standard LAN, USB, and RS232C interfaces support both standalone evaluation and automated test systems.

10 V to 1000 V Operating Range

All five PLZ-5WH2 models support a rated operating voltage range of 10 V to 1000 V. Current begins to flow at an input voltage of 1.5 V or less, while 10 V is required at rated current.

CC / CR / CV / CP / ARB Modes

Select constant current, constant resistance, constant voltage, or constant power operation, or use ARB mode to create arbitrary I-V load characteristics from multiple voltage/current points.

High-Speed Transient Testing

Programmable CC slew rate scales by model from up to 1 A/µs on the PLZ1005WH2 to as much as 20 A/µs on the PLZ20005WH2 for dynamic power-supply and battery evaluation.

Pulse and Sine Load Functions

Pulse operation in CC and CR modes supports repetitive dynamic load changes from 1 Hz to 10 kHz. A sine-current function in CC mode supports ripple-superimposition tests up to 10 kHz.

Advanced Sequence Programming

Create up to 30 programs and 10,000 total sequence steps. Step execution time ranges from 50 µs to 1000 hours with programmable load values, slew rate, load state, and triggers.

Measurement and Data Logging

Built-in voltage, current, power, elapsed-time, integrated-current, and integrated-power functions support test monitoring and battery discharge evaluation, with logged data exportable to USB memory in CSV format.

Flexible Parallel and Synchronized Operation

Up to five PLZ-5WH2 units can operate in parallel, including combinations of different PLZ-5WH2 models. Load on/off, measurements, and sequence execution can also be synchronized across multiple units.

LAN / USB / RS232C Standard

Standard LAN, USB, and RS232C interfaces simplify automated test-system integration. LAN provides LXI-compatible control, while GPIB is available as an option.

High-capacity DC power supply evaluation
Rechargeable battery discharge testing
Large-capacity battery evaluation and data logging
EV charger aging and durability testing
DC-DC converter performance evaluation
Power supply transient response testing
Ripple-superimposition testing of power supplies and batteries
Automated high-voltage DC component and system testing

PLZ-5WH2 Series Model Comparison

Specification PLZ1005WH2 PLZ2005WH2 PLZ4005WH2 PLZ12005WH2 PLZ20005WH2
Rated Operating Voltage 10–1000 V 10–1000 V 10–1000 V 10–1000 V 10–1000 V
Rated Current 20 A 40 A 80 A 240 A 400 A
Rated Power 1 kW 2 kW 4 kW 12 kW 20 kW
Minimum Operating Voltage at Rated Current 10 V 10 V 10 V 10 V 10 V
Voltage When Current Begins to Flow ≤1.5 V ≤1.5 V ≤1.5 V ≤1.5 V ≤1.5 V
Operating Modes CC / CR / CV / CP / ARB CC / CR / CV / CP / ARB CC / CR / CV / CP / ARB CC / CR / CV / CP / ARB CC / CR / CV / CP / ARB
CC Operating Range 0–20 A 0–40 A 0–80 A 0–240 A 0–400 A
Maximum CC Slew Rate 1 A/µs 2 A/µs 4 A/µs 12 A/µs 20 A/µs
Pulse Function CC / CR, up to 10 kHz CC / CR, up to 10 kHz CC / CR, up to 10 kHz CC / CR, up to 10 kHz CC / CR, up to 10 kHz
Sine Function CC, up to 10 kHz CC, up to 10 kHz CC, up to 10 kHz CC, up to 10 kHz CC, up to 10 kHz
Sequence Programs 30 30 30 30 30
Maximum Sequence Steps 10,000 10,000 10,000 10,000 10,000
Sequence Step Time 50 µs–1000 h 50 µs–1000 h 50 µs–1000 h 50 µs–1000 h 50 µs–1000 h
Parallel Operation Up to 5 PLZ-5WH2 units; maximum system capacity 100 kW / 2000 A
Standard Interfaces LAN / USB / RS232C LAN / USB / RS232C LAN / USB / RS232C LAN / USB / RS232C LAN / USB / RS232C
GPIB Option Option Option Option Option
Remote Sensing Input Rating 1000 V 1000 V 1000 V 1000 V 1000 V

Rated operating voltage is 10 V to 1000 V. KIKUSUI separately specifies that current begins to flow at 1.5 V or less; this should not be interpreted as full rated-current operation at 1.5 V.

Dynamic Load Simulation and Automated Test Control

The PLZ-5WH2 Series combines high-voltage load capacity with programmable dynamic functions for transient, endurance, discharge, and automated power-device evaluation.

Pulse operation repeatedly switches between two load settings, while the sine function applies sinusoidal current variation. For more complex test profiles, the integrated sequence engine supports up to 30 programs and 10,000 total steps.

50 µs Minimum Step Sequence step execution from 50 µs to 1000 hours.
10,000 Steps Create detailed programmable load profiles across CC, CR, CV, and CP modes.
Integrated Logging Record voltage, current, power, elapsed time, Ah, and Wh data.
Synchronized Systems Synchronize load switching, measurements, and sequence operation across multiple units.

Logged test data can be retained in internal memory and exported in CSV format through USB memory. TALink triggering also allows measurement acquisition to be synchronized with sequence steps.