Product overview：

ST-3 Intelligent Controller is the core part of DW40,45,48 breaker which mainly used for distribution, feed or generator protection as well as protecting circuit & load from overload, short circuit, ground, etc… and can realize reasonable operation of power grid through overload monitoring and four-remote functions when used as terminal element of distribution automation system .Meanwhile, it has the function of measuring grid parameters include the circuit of grid node, voltage, etc…and recording fault parameters.