According to the national standard GB/T 14048.11, Automatic Transfer Switching Equipment (ATSE) is classified into PC class (Power Circuit) and CB class (Circuit Breaker) (the standard also defines CC class, but here we will mainly discuss PC and CB).PC Class (Power Circuit switching device)Based on
Q1. What is “Three-Stage Protection”?Three-stage protection is a common electronic trip combination in MCCBs (Molded Case Circuit Breakers):Long Time (L): Protects against overload, controls temperature rise, inverse time only.Short Time (S): Protects against medium-level short circuits, provides se
1. Introduction The North American low-voltage power distribution network utilizes a split-phase system (officially designated as a single-phase three-wire system). This architecture is the backbone of residential and light-commercial power delivery, offering 120V and 240V from a single transformer
A Summer to Meet, Grateful We Walk TogetherIn July, in Fu'an where mountains meet the sea, the passion for electrical technology flows.On July 11, 2025, Jiangsu AISIKAI Electric Co., Ltd. grandly launched its “Together for Shared Success” Fujian Customer Appreciation Event amidst the jasmine fragran
