hisham1986
Member
- Location
- KSA/Riyadh.
Dear All,
i am working on an NS630 Shneider circuit breaker category A, equipped with an STR53UE electronic trip unit that provides delayed short circuit protection with a constant/variable I2t option,could anyone please tell me how come it is considered as a category A circuit breaker and it is performing a delayed short circuit protection???shouldn't it be considered category B???
I would really appreciate any fulfilling answer to that question,i have been searching the net for a long time and didn't find anyone to help.
Thanks in advance and best regards to all.
i am working on an NS630 Shneider circuit breaker category A, equipped with an STR53UE electronic trip unit that provides delayed short circuit protection with a constant/variable I2t option,could anyone please tell me how come it is considered as a category A circuit breaker and it is performing a delayed short circuit protection???shouldn't it be considered category B???
I would really appreciate any fulfilling answer to that question,i have been searching the net for a long time and didn't find anyone to help.
Thanks in advance and best regards to all.