The Kikusui PLZ303W is a 300 W benchtop DC electronic load engineered for dynamic testing of power supplies, batteries, and DC sources. Operating across 1.5 V to 120 V with up to 60 A capability, it delivers four independent operating modes—constant current, constant voltage, constant resistance, and constant power—to simulate real-world load conditions and perform accelerated lifetime and burn-in testing. A high-performance current control circuit maintains stability with 5 mArms ripple and noise, while CPU control enables sequence automation, waveform simulation, and remote operation via optional GPIB or RS-232C interfaces. The unit stores up to four setups internally or 50 on an optional memory card, and supports parallel connection of up to five identical units under single master control for increased capacity.
## Technical Specifications
• Maximum Power: 300 W
• Operating Voltage Range: 1.5 V to 120 V
• Current Range: 0 A to 60 A
• Constant Current (CC) Mode: H Range 0–60 A / L Range 0–6 A
• Constant Voltage (CV) Mode: 1.5 V to 120 V
• Constant Resistance (CR) Mode: H Range 0.05–5 Ω / L Range 0.5–50 Ω
• Constant Power (CP) Mode: 30 W to 300 W
• Current Ripple and Noise: 5 mArms
• Soft-start Time: Selectable (0.1, 1, 2, 5, 10, 20, 50, 100 ms)
## Key Features
• Four independent operating modes for flexible load simulation
• Integrated ammeter, voltmeter, and power meter for real-time measurement
• Sequence function for automated testing without operator intervention
• Waveform simulation capability to replicate operating environments
• Remote sensing terminals to compensate voltage drop and improve transient response
• Built-in memory for four setups; optional memory card supports 50 configurations
• Selectable soft-start timing for controlled power-up sequences
• Parallel operation: up to five units controlled by single master unit
## Typical Applications
• Power supply characteristic evaluation and qualification
• Battery testing and runtime analysis
• Accelerated burn-in and lifetime testing
• Load transient and dynamic response validation
## Compatibility & Integration
• Optional GPIB Interface Board (IB11) and RS-232C Interface (RS11) for remote control
• Multi-Channel Bus (MCB) feature controls up to 16 units on a single GPIB address or RS-232C port
• Front panel fully controllable via external controller when optional interface installed
