The Kikusui PLZ1003WH is a programmable DC electronic load designed for precision testing of power supplies, batteries, fuel cells, and power conversion devices. Operating across 1 V to 150 V with maximum current of 30 A, it delivers up to 1000 W of load dissipation. The unit supports Constant Current (CC), Constant Voltage (CV), Constant Resistance (CR), and Constant Power (CP) operating modes, plus dynamic load simulation with switching frequencies to 10 kHz and current slew rates reaching 2.5 A/µs. Built-in protections include programmable overvoltage, overcurrent, and overpower limits alongside automatic over-temperature and reverse voltage protection. Front-panel control combines a VFD display with numeric keypad and rotary encoder; GPIB and USB interfaces enable integration into automated test systems. Remote sensing compensates for lead voltage drop up to 1 V per lead.
## Technical Specifications
• **Voltage Range:** 1 V to 150 V
• **Current Range:** 0 to 30 A maximum
• **Power Rating:** 1000 W maximum
• **Load Resistance:** 0.15 Ω to 750 Ω (at 150 V)
• **Operating Modes:** CC, CV, CR, CP
• **Current Control Resolution:** 1 mA
• **Current Control Accuracy:** ±(0.1% of setting + 0.1% of range)
• **Voltage Control Resolution:** 10 mV
• **Voltage Control Accuracy:** ±(0.1% of setting + 0.1% of range)
• **Resistance Control Accuracy:** ±(0.5% of setting + 0.5% of range)
• **Power Control Accuracy:** ±(0.5% of setting + 0.5% of range)
• **Dynamic Switching Frequency:** Up to 10 kHz
• **Current Slew Rate:** Up to 2.5 A/µs
• **Transient Response:** ≤50 µs
## Key Features
• Programmable overvoltage (OVP), overcurrent (OCP), and overpower (OPP) protection
• Built-in over-temperature protection (OTP)
• Built-in reverse voltage protection (RVP)
• Square-wave dynamic loading with programmable ON/OFF timing and duty cycle
• Remote sensing for lead compensation
• High-visibility VFD display for real-time monitoring
## Typical Applications
• Power supply validation and burn-in testing
• Battery and fuel cell characterization
• DC-DC converter efficiency evaluation
• Transient load response analysis
## Compatibility & Integration
• GPIB (IEEE 488.2) for automated test system integration
• USB 2.0 for PC control and data logging
