The DW45 series low-voltage intelligent vacuum circuit breaker (hereinafter referred to as the circuit breaker) is mainly suitable for distribution networks with AC 50Hz, rated working voltages of 400V, 690V, and 1140V, and rated working currents of 630A to 1600A. It is used to distribute electrical energy, protect lines, and prevent power equipment from being damaged by overload, undervoltage, short circuit, and single-phase grounding faults. Under normal conditions, it can also be used for infrequent switching of lines. The core component of the circuit breaker adopts an intelligent release, which has precise selective protection, can avoid unnecessary power outages, and improve power supply reliability. The biggest feature of this circuit breaker is the use of a vacuum arc extinguishing chamber, which prevents arc discharge during the current breaking process, making it particularly suitable for harsh environmental conditions such as coal mines, chemical industries, and smelting.
The product complies with GB 14048.2 and IEC 60947-2 standards.