An Air circuit breaker typically utilizes a steel frame as its primary structural support, serving to securely and cohesively mount all internal components; this design results in a compact yet robust structure.
As a low-voltage switching device, the air circuit breaker employs air as both its arc-extinguishing and insulating medium and is primarily deployed within low-voltage power distribution systems.It is capable of reliably making and carrying the circuit’s normal operating current while simultaneously—in the event of abnormal faults such as overloads or short circuits—automatically interrupting the fault current and utilizing the air medium to extinguish the electric arcs generated during the disconnection process, thereby fulfilling its functions of circuit control and protection.
