NKB1 series control & protective switching device (CPS) is mainly applied to circuit with AC current frequency of 50 Hz or 60Hz, rated operational voltage up to 690V, rated operational current from 1A to 125A, controller setting current from 0.4A to 125A, control motor power from 0.12kW to 55kW. It is capable of making, carrying and breaking currents under normal conditions, including specified operating overload conditions and of making, carrying for a specified time and breaking currents under specified abnormal conditions such as those of short-circuits.
NBK1 series CPS is applied to power distribution and motor protection & control of various occasions or systems, e.g. infrastructure, buildings, communications, etc.
Standard: IEC60947-6-2 Multiple function equipment-Control and protective switching devices (or equipment) (CPS).
NKB1 Control & Protective Switching Device PDF