The Kikusui PAD 55-120L is a regulated DC power supply engineered for industrial and laboratory testing, development, and manufacturing. It delivers 0–55V and 0–120A with dual operation modes—constant voltage (CV) and constant current (CC)—for precise power delivery to demanding loads. The unit combines fine 10-turn potentiometer control with remote voltage and current adjustment capabilities. Built-in overvoltage protection (OVP) and overcurrent protection (OCP) circuits, both adjustable from 10% to 110% of rated output, safeguard connected equipment. Temperature stability is exceptional at 50 ppm/°C, while line regulation holds 0.5% in CV mode and 1% in CC mode. Load regulation maintains 15 mV in both modes. Ripple and noise measure 50 mVrms. The choke input system delivers approximately 74% efficiency at full load and improves power factor at low output voltages. Fast transient response of 50 µs ensures stable operation during sudden load changes. Input accepts 120/240 VAC ±10%.
## Technical Specifications
• Output voltage: 0–55V
• Output current: 0–120A
• Input: 120/240 VAC ±10%
• Line regulation (CV): 0.5%
• Line regulation (CC): 1%
• Load regulation (CV/CC): 15 mV
• Ripple and noise: 50 mVrms
• Temperature coefficient: 50 ppm/°C (typical)
• Transient response: 50 µs
• Efficiency: ~74% (full load)
## Key Features
• Constant voltage and constant current operation modes
• 10-turn potentiometer for fine voltage and current adjustment
• Adjustable OVP and OCP circuits (10–110% of rated output)
• Remote control of output voltage and current via external voltage or resistance
• Current/voltage limit switch with preset displayable values
• Internal voltage, current, and temperature detection
• Choke input configuration for improved power factor and efficiency
## Typical Applications
• Industrial equipment testing and qualification
• Laboratory research and prototype development
• Manufacturing process power delivery
• Precision load testing
## Compatibility & Integration
The PAD 55-120L operates from standard dual-voltage AC input and supports remote control integration for automated test systems.
