prEN IEC 62282-2-400:2026

This document specifies methods for calculating the rated power and power density of PEM fuel cell stacks and modules.
To supply power to an application, the stack or module shall be integrated within a fuel cell power system, as illustrated in Figure 1 in accordance with IEC 62282-2-100:2020.
This document applies to all PEM fuel cells, irrespective of their application and PEM technology type, including high-temperature PEM fuel cells.
Figure 1 – Fuel cell power system components
Fuel cell modules may be fitted with or without enclosures, and can operate at substantial pressurisation levels or near ambient pressure.
Since peripheral devices affect the net power output of the fuel cell power system, this standard focuses on the stack and module in their standalone state prior to such peripheral influences, as illustrated in Figure 1.
This document excludes the storage and delivery of fuel and oxidant to the fuel cell module.