Standard Sizes and Types of Steel DIN Rails

Steel DIN Rails are indispensable installation components in electrical equipment due to their standardized design. They typically follow the International Electrotechnical Commission (IEC) or German DIN standards, enabling electrical components to be universally interchangeable worldwide, greatly improving installation convenience.

There are three main types of common Steel DIN Rails: 35mm wide top-hat rails, 15mm wide miniature rails, and symmetrical or asymmetrical rails designed for heavy-duty equipment. Among them, the 35mm top-hat rail is the most widely used standard, covering almost all power distribution and automation control system needs.

Different types of rails vary in thickness, strength, and applicable environment. For example, thicker steel rails are suitable for carrying heavier electrical components, while thinner models are more suitable for lightweight installation scenarios. By selecting different standard sizes and types, users can flexibly configure systems to meet diverse engineering needs.
Therefore, mastering the standards and types of Steel DIN Rails is crucial for reasonable selection and efficient installation of electrical equipment.