SIWOB1-63/125 series small circuit breakers are suitable for circuits with rated voltage up to 400V and rated current up to 125A. They are used for overcurrent protection of line facilities and electrical equipment in buildings and similar places, and can also be used for infrequent making and breaking operations.
National Standards
GB 10963 "Circuit Breakers for Overcurrent Protection in Household and Similar Places"
GB 14048.2 "Low Voltage Switchgear and Control Equipment: Circuit Breakers"
GB 14048.3 "Low voltage switchgear and control equipment: Switches, isolators, isolating switches, and fuse combinations" GB 16917.1 "Residual current operated circuit breakers (RCBOs) with overcurrent protection for household and similar purposes"
1. Precision Bimetal is used as thermal overload current release to provide delay protection for the line;
2. Electromagnetic high-speed release with solenoid, used for short circuit protection of lines;
3. Prevent overloading of the distribution system (if there is no short circuit fault in the circuit, overheating and overloading may occur that may damage the wiring);
4. Prevent short circuits in the distribution system and electrical devices (such as faults caused by circuit faults or incorrect connections).
