The standard covers the requirements for the design, construction, testing, and documentation of low-voltage switchgear and controlgear assemblies, which are used to control and distribute electrical power in low-voltage systems.
The standard applies to:
IEC 61439 introduces a "Design Verification" approach, allowing compliance through Comparison with a reference design Calculation/Assessment Clearer Responsibilities: The standard now explicitly defines roles for the Original Manufacturer (who designs the system) and the Assembly Manufacturer
