GW Instek PEL-503-80-50 Programmable DC Electronic Load

Overview

The GW Instek PEL-503-80-50 is a programmable single-channel DC electronic load from the PEL-500 series with a power rating of 250W, maximum output voltage of 80V, and maximum output current of 50A. Designed for research and development, quality control, ATE systems, and production testing, this benchtop load can evaluate power supplies, test switching transients, simulate battery discharge, and validate current limiting circuits.

Key Features

• 250W power rating with 80V maximum voltage and 50A maximum current
• 5-digit digital display for simultaneous voltage, current, and power measurement
• Multiple operation modes: CC (constant current), CR (constant resistance), CV (constant voltage), CP (constant power), and Dynamic
• Programmable short-circuit test with configurable timing
• Automatic overcurrent protection (OCP) and overpower protection (OPP) testing
• Battery discharge test with configurable stop voltage, discharge capacity, and time limits
• Surge test mode for simulating boot overshoot and hot-plug transient currents
• GO/NG judgment function for pass/fail automated test evaluation
• Overvoltage, overcurrent, overpower, and over-temperature protection
• Reverse polarity detection and protection
• Adjustable voltage polarity display (positive or negative value)
• RS232 and USB communication interfaces
• Current waveform output via BNC connector for oscilloscope monitoring

Applications

• Voltage source and current source testing
• Switching power supply transient response evaluation
• Constant voltage mode current limiting tests
• Battery simulation and discharge testing
• Power supply protection circuit validation
• Research and development of power systems
• Production quality control and acceptance testing
• Automatic test equipment (ATE) integration