Today is...
Saturday, September 23, 2017
Welcome to, the global online
community of automation professionals.
Featured Video...
Featured Video
Watch an animation of a conveyor stacking operation demonstrating the use of a move on a gear command.
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?