Teko 750.9 is a standard for the design of low voltage switchgear and controlgear assemblies. It includes requirements for construction, installation, and testing, as well as performance and fire safety criteria. The standard covers a wide range of products, from a single control panel to complete systems for up to 17.5kV. It specifies design, materials, mechanical and electrical requirements, environmental conditions, and marking requirements for safety and accuracy. Teko 750.9 is applicable to the components of power systems including but not limited to: switchgear and controlgear assemblies, switchgear systems, and disconnector switchgear assemblies.