Horizon's new H-12 PEM Fuel Cell System is the lightest, most compact (and most competitively priced) 12W system in the world. The H-12 Fuel Cell is a 12 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. This semi-integrated unit is provided in kit format complete with air blower, control electronics and hydrogen supply valve.

List of components in the package:

1 x 12W fuel cell stack (with integrated fan and casing)
1 x silicon tube (OD 4 x ID 2.5mm), 50cm long
1 x silicon tube (OD 6 x ID 3mm), 50cm long
1 x filter
2 x red plastic pin
2 x inlet/outlet gas fitting (M3-4)
1 x FC positive output line, 30cm long
1 x FC negative output line, 30cm long

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 12W PEM Fuel Cell User Manual

Horizon H-Series Brochure

Fuel Cell Properties
Number of Cells	13
Rated Power	12W
Rated Performance	7.8V @ 1.5A
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)
Stack Weight (with Fan & Casing)	275g ± 30g
Hydrogen Flow Rate at Max Output	0.18 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