The Amrel PLW12K-120-1200E is a water-cooled, programmable DC electronic load engineered for high-power test applications requiring precise voltage and current dissipation control. Rated at 12 kW with a 120 Vdc maximum input and 1200 Adc maximum current, this 2U rackmount unit operates in Constant Voltage (CV), Constant Current (CC), Constant Resistance (CR), and Constant Power (CP) modes. The load achieves full rated current at input voltages approaching 0.1 V, making it suitable for low-voltage power supply validation. Multiple protection circuits—including overvoltage, overcurrent, overpower, and overtemperature safeguards—isolate FET failures to minimize Mean Time To Repair. A unique condensation protection design with integrated temperature control and solenoid valve ensures reliable operation in moisture-prone environments.
Technical Specifications
• Power Dissipation: Up to 12 kW
• Voltage Range: 0–120 Vdc
• Current Range: 0–1200 Adc
• Minimum Operating Voltage (Full Current): Approaching 0.1 V (1% of rated maximum)
• AC Input (Control Power): 95–240 Vac, 48–62 Hz
• Form Factor: 2U Rackmount, 27.5 inches depth
• Voltage Monitoring Accuracy: 0.10% ± 0.120 V
• Current Monitoring Accuracy: 0.10% ± 1.200 A
• Transient Mode Accuracy: 0.20% ± 1.575 A
• Transient Frequency Range: 0.100 Hz to 10,000 Hz
– Key Features
• Four operating modes: CV, CC, CR, and CP for diverse load simulation scenarios
• Overvoltage Protection (OVP): ±2.400 V; Overcurrent Protection (OCP): ±12.571 A (max 1320 A)
• Overpower Protection (OPP): ±240.0 W (max 12,600 W)
• Overtemperature Protection (OTP): 50.00 ± 5.000 °C threshold
• Reverse Maximum Current (RCP) and Short Maximum Current (1224 A) protection
• Individual FET isolation prevents cascading failures
• Condensation protection with temperature control and solenoid valve
• Fast transient response for dynamic load testing
– Interfaces & Control
• Fully programmable via SCPI command set
• 0–10 Vdc analog programming support
• Ethernet, USB, GPIB, and RS-232 (E-Package configuration)
• 12-pin external programming connector with TTL active high/low contactor control
• Front panel interface
• LabWindows and LabVIEW drivers included
– Typical Applications
• ATE systems and laboratory testing
• Industrial control validation
• Power supply load simulation and burn-in testing
• Battery and fuel cell characterization at high current
