Technical FAQs

Ask a Question

What are the characteristics of SR13MAE (MAE500) trip unit used in Compact NS630 circuit breaker.

The Compact NS630 fitted with the STR13MAE trip unit is named: NS630MAE500.
The old MA500 trip unit was designed with mechanical feature. The new MA500 is designed with electronic feature and is named MAE500. The tripping curve is the same than the MA500 trip unit.
The protection setting of the STR13MAE is from 6 to 13 times of the In (In=rated current). This is the only setting available on the product.
The tripping curve for the STR13MAE trip unit is as given below:

Was this helpful?
What can we do to improve the information ?