Horizon 5000W PEM Fuel Cell

Product Code: 82132012


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The Horizon H-5000 PEM Fuel Cell is a 5 kW (or 5000 Watts), air fed / air cooled, self-humidified hydrogen fuel cell.  Because this fuel cell is air cooled there is no need for large, complicated, and expensive water cooling systems.

Horizon H-Series PEM fuel cells are semi-integrated, efficient, reliable systems that minimize the use of peripherals.  As such, they are the most compact and lightweight fuel cells around the world.

List of components in the package:
  • 1 x 5000W fuel cell stack (includes supply valve, purge valve, blower)
  • 1 x controller (includes short circuit unit) and this module is also known as electronic control box
  • Connections and tubing
  • Electronic valves
  • Fuel cell ON/OFF switch
  • SCU ON/OFF switch


The controller requires an external power supply of 24 volts and of up to 20 amperes. During the operation of the stack, the controller would not be consuming 20 amperes continuously.

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 5000W 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 120
Rated Power 5000W (5kW)
Rated Performance 72V @ 70A
Hydrogen Supply Valve Voltage 12V
Purging Valve Voltage 12V
Blower Voltage 24V
Reactants Hydrogen and Air
Ambient Temperature 5 - 30 C (41 - 86 F)
Max Stack Temperature 65 C (149 F)
Hydrogen Pressure 0.45 - 0.55 Bar
Humidification Self-humidified
Cooling Air (integrated cooling fan)
Controller Weight 2500g (± 100g)
Stack Weight (with Fan & Casing) 30kg ± 200g
Hydrogen Flow Rate at Max Output 65 L/min
Stack Size 350 x 212 x 650mm (13.8" x 8.3" x 25.6")
Hydrogen Purity Requirement ≥ 99.995% (dry H2)
Start up time ≤ 30s (ambient temperature)
Efficiency of System 40% at 72V
Low Voltage Protection 60V
Over Current Protection 90A
Over Temperature Protection 65 C
External Power Supply 24V (±1V), 5A-20A

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