Today is...
Thursday, May 24, 2018
Welcome to, the global online
community of automation professionals.
Featured Video...
Featured Video
A demonstration of EtherCAT control of linear motors using the CTC EtherCAT master.
Our Advertisers
Help keep our servers running...
Patronize our advertisers!
Visit our Post Archive
Vacuum Circuit Breaker
No of switching operation of a breaker ?

We are using Siemens make Vacuum circuit breaker 3AH4305-6. The rated current is 2500A.

I want to know that for How many switching operations can we use this breaker if the breaker is switched of at 1) rated current 2) 50% rated current and 3) 25% rated current?