What is the equivalent English term for 'Nenngeschwindigkeit'?

The term 'Nenngeschwindigkeit' is derived from technical contexts, particularly in engineering and mechanical fields. It refers to the specified speed at which a machine or device is designed to operate under normal conditions. This concept is synonymous with 'rated speed' in English, which highlights the designated operational speed that is safe and efficient for the equipment.

This equivalence emphasizes the importance of the rated speed in ensuring that machinery performs optimally without exceeding its safety limits. Understanding this term is crucial for maintaining equipment, as exceeding the rated speed can lead to mechanical failure or unsafe operating conditions.

The other terms provided do not accurately capture the technical meaning of 'Nenngeschwindigkeit.' Therefore, 'rated speed' stands out as the most appropriate translation that conveys both the literal and contextual significance of the term.