Technical FAQs

Ask a Question

What is the replacement for trip unit STR22 used with NS MCCB up to 630 A ?

The MCCB of type NS up to 630 A is replaced with NSX MCCB range up to 630 A.

Accordingly, the trip unit of type electronic STR22  used for basic protection is replaced with Micro logic trip unit of type (Micro logic 2.2 for NSX up to 250 A and Micro logic 2.3 for 400 / 630 A)
Was this helpful?
What can we do to improve the information ?