Iec Vs Nema Symbols

The difference between iec vs nema is that a nema contactor by design may have up to 25 service factor while iec is more focused on space and cost savings by testing components to their exact design rating and using utilization categories to rate devices based on their intended use.

Iec vs nema symbols. This allows you to take the best advantage of local availability and expertise which can be an important. Diagram symbols used throughout various parts of the world. Standard electrical iec symbols also known as iec 60617 british standard bs 3939 used to represent various devices including pilot lights relays timers and switches for usage in electrical schematic diagrams. If you re able to apply either iec or nema style products you have the flexibility to adapt to local traditions and product supply anywhere in the world.

Today iec works closely with the international organization for standardization iso and the international telecommunication union itu to define global. How do nema and iec style electromechanical motor control products differ in today s business environment flexibility is an asset. Here below the cross reference of common schematic wiring diagram symbols used throughout various parts of the world. The difference between iec and nema.

The following tables describe the device and show the symbol by area of usage.