IEC 63437:2025 pdf download,Off grid and unreliable grid refrigerating appliances for domestic and light commercial use – Characteristics and test methods – Performance requirements and energy consumption.

IEC 63437:2025 establishes the core performance characteristics for domestic, similar, or light commercial refrigerating appliances that are cooled by internal natural or forced air convection and are designed for use with unreliable electrical grids or entirely off-grid. It defines the input voltage supply signals appropriate for such off-grid and unreliable grid conditions.

IEC 63437:2025 details the test methods for evaluating the functional performance characteristics and requirements of these appliances. It explicitly excludes refrigerating appliances intended for stable, high-quality electricity grids, as well as those that employ fuelled absorption cooling technology.