The SIWOW1 series universal circuit breaker is suitable for distribution networks with AC 50Hz, rated working voltages of 400V, 690V, and rated working currents of 6300 and below. It is used to distribute electrical energy and protect lines and power equipment from overload, undervoltage, short circuit, grounding and other faults. The circuit breaker adopts an intelligent controller with precise selective protection and multifunctional functions, with complete protection functions, especially suitable for distribution networks that need to improve power supply reliability and avoid unnecessary power outages. The PT40-2H/PT40-3H intelligent controller is equipped with a communication interface for easy connection to the field bus, and can achieve four remote functions: "telemetry", "remote adjustment", "remote control", and "remote signaling", meeting the requirements of control automation. Configuring leakage transformers and corresponding intelligent controllers can also achieve leakage protection.
GB/T14048.1 "General Principles for Low Voltage Switchgear and Control Equipment"
GB/T14048.2 "Low Voltage Switchgear and Control Equipment - Low Voltage Circuit Breakers"
GB/T14048.4 "Electromechanical Contactors and Motor Starters for Low Voltage Switchgear and Control Equipment"
GB/T14597 "Climatic Environmental Conditions for Electrical Products at Different Elevations"
GB/T2423.1 "Environmental Testing and Testing Methods for Electrical and Electronic Products"
GBT20626.1 Plateau Electrical and Electronic Products under Special Environmental Conditions Part 1: General-purpose technology Conditions
