1.STB3-125J circuit breaker, it can set automatically, and has under-voltage and over-voltage protection a variety of current protection. 2.2 model for choose: Without monitor type & with monitor type 3.RS485 communication, can be remote split / close and set parameters. 4.Maintenance can be remote lock, remote unlock,or with mechanical locking. 5.Under-voltage protection: can set the under-voltage action value, can also close the under-voltage function. When the under-voltage function is opened, there is pressure loss protection, that is, power trip, at this time the product cannot be manually closed. 6.The manual or automatic mode can be set, Real-time voltage can be read. 7.Under over-pressure (N-L: 440V) and without any damage.
