HP / Agilent 60501B 150W DC Electronic Load Module

The HP/Agilent 60501B is a 150 W DC electronic load module engineered for dynamic testing of power supplies, batteries, and DC power sources. It operates as a plug-in module within the 6050A or 6051A mainframe, delivering precise current control across four programmable ranges and three resistance ranges. The module supports constant current, constant resistance, constant voltage, and pulse modes—making it suitable for R&D characterization, production validation, and incoming component inspection. Internal and external load sensing, analog voltage programming, and GPIB control enable flexible test automation across voltage levels from 3 V to 60 V DC.

– Technical Specifications

• Power dissipation: 150 W
• Voltage range: 3 V to 60 V DC
• Current range: 0 A to 30 A DC
• Current ranges (programmable): 0–3 A, 0–30 A
• Resistance ranges (programmable): 0.067 Ω–2 Ω, 2 Ω–2 kΩ, 20 Ω–10 kΩ
• Programmable short circuit: 0.066 Ω (0.04 Ω typical)
• Programmable open circuit: 20 kΩ typical
• Operating temperature: 0 °C to 55 °C
• Turn-on current overshoot: 500 µs source rise time)
• Weight: 7 lb

– Key Features

• Constant current mode with analog voltage control
• Constant resistance mode with six programmable steps
• Constant voltage mode with remote sensing capability
• Pulse mode with internal transient generator; programmable amplitude, frequency, duty cycle, and slew rate
• GPIB-addressable current, voltage, and resistance commands (mainframe integration)
• GPIB readback of voltage, current, and power
• Dual-range current programming (3 A and 30 A scales)
• Large high-current binding posts for direct connection
• Full protection: over-current, over-voltage, overpower, over-temperature, reverse polarity
• EMC compliance: CISPR 11:1990 / EN 55011:1991 Group 1, Class B

– Typical Applications

• Power supply characterization and stress testing
• Battery capacity and discharge profiling
• Transient response evaluation of DC sources
• Production test automation
• Incoming inspection of power components

– Compatibility & Integration

Designed exclusively for the HP/Agilent 6050A or 6051A Electronic Load Mainframe. Module-based architecture allows stacking and mixed-module configurations within a single mainframe chassis.