Electronic Loads

Standard Features

  • Fully programmable, self-contained, air cooled solid state load
  • Patented design is optimized to provide ultra-low impedance operation for fuel cell testing
  • Load is compatible with AC impedance or frequency response analyzers
  • Interchangeable shunts for precise operation over a wide dynamic range
  • Ten built-in voltage monitoring inputs optional. Additional voltage monitoring inputs available
  • Ethernet Interface for simple configuration and expansion!
  • Combine with additional Fideris Innovator Series modules to create a fully-integrated, fully-automated, customized test system
  • System-wide control of all Fideris Test System Components using FCPower Software, Labview, or other programming language
  • Integrated hardwired Run/Standby signal


Specifications of the Electronic Load Module

  • Type: MOSFET variable resistance loadbank
  • Current Measurement: Exchangeable shunt (determines maximum current) from 1A to 1000A available, depending on load model
  • Maximum Current Rating: 50, 100, or 1000 Amps depending on load model
  • Maximum Voltage Rating: 20V standard, 55V available
  • Maximum Power Dissipation: 150, 250, 500, or 1kW models available
  • Nominal Short Circuit Resistance: 150W < 3 milliohms, 250W < 3 milliohms, 500W < 1.5 milliohms, 1kW < 1.5 milliohms
  • Corrosion Protection: All critical components gold-plated
  • Voltage Measurement Precision: 16 bit precision of full scale measurement
  • Current Measurement Precision: 16 bit precision of full scale measurement

Electrical Requirements

  • Voltage: 26-50VDC
  • Communication: Ethernet (DHCP)

Front Panel Controls and Displays

  • Unit Status: LCD with backlight, current, and voltage
  • Communications: Tx, Rx, Ident LEDs
  • Enabled/Standby Status: Enabled LED

Back Panel Connections

  • Power / Run/Standby Molex 39660-1004
  • Data Connections: RJ45 (8P8C) Ethernet
  • Cell Voltage Input (optional): DB-25, available as an option
  • Reference Voltage Input: 4 pin AMP CPC
  • Load Connections: 5/16" bolt down terminals standard

Physical Characteristics

  • Dimensions: 150W, 250W, 500W 2U (3.5" high), 1kW 3U (5.25" high); 19" rackmount; 21" deep
  • System Weight: Dependent on configuration, approximately 30 lbs
  • Operating Environment: 40 to 100 degrees Fahrenheit, 85% RH
  • Cabinet Rating: Indoors
  • Clearance for Operation: Back: 8", Sides: 0", Top: 0"
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Modules Available

Software Operation Features

  • Fully user programmable operation
  • Ideal for fuel cell testing since its ultra low minimum impedance provides full current at low voltages
  • Constant current, constant voltage, or constant power modes of operation
  • Automatic current ramp operation with user specified starting load, ending load, and ramp rate
  • Pulsed current operation; adjustable amplitude, duty cycle, and frequency