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Feature

300 Watts DC electronic load with programmable PC USB interface, software included
High accuracy, resolution and precision instrument, calibration certificate included
Constant current / constant power / Constant resistance mode
Over voltage / over current / over power / over heat / polarity reversion protection
LCD display with backlight + AC 120V/220V selectable

Description

From the manufacturer:

The Tekpower TP3711A DC electronic load is a compact and affordable instrument that is suitable for both home and industrial use. This programmable DC Electronic Load has a maximum power of up to 300 Watts and can be used with power supplies up to 360 Volts DC and 30 Amps. It comes with both a rotary switch and a numeric keypad which may be used to set up the voltage, current and power. With its reliability and versatility, it's an invaluable and indispensable tool for testing DC power supplies, high-capacity batteries, solar panels and etc, ideal for labs, research institutes, R& D facilities. The TP3711A Programmable DC load also features internal memory, and can be connected to a PC via a USB port with the included software to implement real-time remote control and monitoring.

Main Specifications:

Input voltage: 0 - 360 V
Input current: 0 - 30 A
Input power: 0 - 300 W
Voltage accuracy:
0.000~3.999V0.2% + 3mV
4.00~35.99V0.2% + 30mV
36.0~360.0V0.2% + 300mV
Current accuracy:
0.000~2.999A0.2% + 3mA
3.00~30.00A0.2% + 30mA
Minimum resolution: Voltage 1mV, Current 1mA
Lowest Conductive Resistance: < 0.08
Ripple: < 10mVpp
Dimensions: 8 X 3 X 9 inches
Weight: 10 lbs

What's in the box:

Tekpower TP3711A Electronics Load
AC power cord
Software CD
USB adapter with cable
Handle bars
Mounting rack
User manual
Certificate of calibration