GNMNE series plastic shell circuit breakers are engineered for AC lines with rated working voltages of AC800/1000V and rated currents ranging from 63A to 250A. These units are specifically designed for high-demand environments, including AC combiner boxes and cabinets within the photovoltaic power generation industry, as well as grid-connected cabinets in the power sector. They provide essential electrical energy distribution while protecting lines and power equipment from hazards such as overload, short circuits, and other critical faults.
The combiner type molded case circuit breaker series consists of two distinct product lines designed for specialized industrial applications.
The busbar shell incorporates all-round protection, ensuring safe operation with electricity. This design eliminates grounding faults caused by external factors such as moisture, dust, or foreign objects. The phase-separated enclosed structure prevents phase-to-phase short circuits.
By integrating the busbar connection strip with the circuit breaker, the number of transition strip connection points is reduced. This decreases the temperature rise at connection points by 20%, leading to a significant overall reduction in internal heat for the complete set.
With a standardized busbar spacing of 45mm across all shell products, installation requires 30% less connection material. This results in a 20% reduction in installation volume and improves overall installation efficiency by 60%.
Utilizing a revolutionary high-breaking structure design—including an optimized arc extinguishing system and air flow channels—the product achieves zero arcing distance for breaking operations, significantly enhancing safety.