Horizon 20W PEM Fuel Cell

Product Code: 82132002


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The Horizon H-20 PEM Fuel Cell is a 20 Watt, air fed / air cooled, hydrogen fuel cell suitable for many small projects and uses.  Because this fuel cell is air cooled, there is no need for large, complicated, and expensive water cooling systems.

Projects/Applications that will benefit from the use of this product include: recharging for cell phone, power for a small RC car or boat, or just an economical way to begin experimenting with hydrogen fuel cells and their use and operation.

List of components in the package:
  • 1 x 20W fuel cell stack
  • 1 x controller
  • 1 x silicon tube (OD 4 x ID 2.5mm), 50cm long
  • 1 x filter
  • 2 x black plastic pin
  • 1 x valve
  • 2 x inlet/outlet gas fitting (M3-4)


Polarization Curves

Polarization curves (also known as fuel cell performance curves or IV curves or IE curves) are given both in the user manual and the brochure (see the links for PDF files below).

Related Documentation

Horizon 20W PEM Fuel Cell User Manual

Horizon H-Series Brochure

A typical lead time of 6-8 weeks to be expected for this product.

Fuel Cell Properties
Number of Cells 13
Rated Power 20W
Rated Performance 7.8V @ 2.6A
Purging Valve Voltage 6V
Blower Voltage 5V
Reactants Hydrogen and Air
Ambient Temperature 5 - 30 C; (41 - 86 F;)
Max Stack Temperature 55 C (131 F)
Hydrogen Pressure 0.45 - 0.55 Bar
Humidification Self-humidified
Cooling Air (integrated cooling fan)
Controller Weight 90g ± 10g
Stack Weight (with Fan & Casing) 275g ± 30g
Hydrogen Flow Rate at Max Output 0.28 L/min
Stack Size 75 x 47 x 70mm (3" x 1.8" x 2.8")
Hydrogen Purity Requirement ≥ 99.995%
Start up time ≤ 30s (ambient temperature)
Efficiency of System 40% at Full Load

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