Classification Of Low Voltage Pole Mounted Circuit Breakers

The switches we encounter nowadays are generally divided into oil-rich (older models, almost no longer seen), oil-less (some user stations still have them), SF6, vacuum, GIS (combination electrical appliances), etc. These are all about the arc extinguishing medium of the switch. For us, the operating mechanism of the switch is closely related.
The mechanism type can be divided into electromagnetic operating mechanism (older, generally equipped with oil-rich or oil-less Lv Pole Mounted Circuit Breakers); spring operating mechanism (the most common at present, SF6, vacuum, GIS are generally equipped with this mechanism); recently ABB has launched a new permanent magnetic operating mechanism (such as VM1 vacuum circuit breaker).