WATSN系列自動轉換開關是施耐德萬高公司生產銷售的利用微機控制技術開發研制的新一代自動轉換開關。該開關以施耐德電氣公司的Multi9系列、Compact系列斷路器或符合開關為執行元件，并配以機電一體化、帶機電雙重聯鎖的新型控制機構，特別適合用在不容許電源斷電的重要供電場所即重要負荷。為滿足現場需求，自動轉換開關可實現自投自復、自投不自復、互為備用三種不同的工作方式。實現市電對市電雙電源 WATSN-40負荷隔離開關INT WATSN-63/63 3CBRX WATSNA 2P 40A WATSNA 40A/2 WATSNA 63/16 3CBR-D WATSNA 63/40-4CBR WATSNA 63/63 2CBR-C WATSNA 63/63 4CBR-D WATSNA-100 4PCR WATSNA-100 4PCR INT WATSNA-100/ 4PCR WATSNA-100/100 3CBS WATSNA-100/100 3PCR WATSNA-100/100 4CBI WATSNA-100/100 4CBR WATSNA-100/100 4CBS WATSNA-100/100 4PCR WATSNA-100/100.3CBR WATSNA-100/100.4CBR WATSNA-100/100.4PCR WATSNA-100/100A 3CBR WATSNA-100/100A 4CBI+F WATSN-63/63 3CBR WATSNA-100/100A 4CBR WATSNA-100/100A 4CBRXF WATSNA-100/100A 4PCR WATSNA-100/16 .3CBR WATSNA-100/25 3CBR WATSNA-100/25A 4CBR WATSNA-100/32 .3CBR WATSNA-100/32 3CBR WATSNA-100/32.4CBR WATSNA-100/40 .3CBR WATSNA-100/40 3CBR WATSNA-100/40 4CBR WATSNA-100/40 4P PCR WATSNA-100/50 3CBR WATSNA-100/50.4CBR WATSNA-100/50A 4CBR WATSNA-100/63 3CBR WATSNA-100/63 4CBR WATSNA-100/63 4P PCR WATSNA-100/63.3CBR WATSNA-100/63A 4CBR WATSNA-100/63A 4CBTR WATSNA-100/63A 4PCR WATSNA-100/80 4CBR WATSNA-100/80 4CBR X+F WATSNA-100/80 4PCR WATSNA-100/80.3CBR WATSNA-100/80.3CBS WATSNA-100/80.4CBR WATSNA-100/80A 3CBR WATSNA-100/80A 4CBR WATSNA-100/80A.3CBR-X WATSNA-100-100-3CBI WATSNA-100-100-4PCR WATSNA-100-40-3CBR STR22SE WATSNA-100A(4PCR) WATSNA-125/3R WATSNA-125A/4PCR WATSNA-16/16 2CBR WATSNA-160.4CBR WATSNA-160/100 4PCR WATSNA-160/100.4CBR WATSNA-160/100A 4CBR WATSNA-160/100A 4PCR WATSNA-160/125 4CBR WATSNA-160/125.3CBR WATSNA-160/125A 4CBR WATSNA-160/125A 4PCR WATSNA-160/160 3CBI WATSNA-160/160 3CBR WATSNA-160/160 4CBR WATSNA-160/160.3CBR WATSNA-160/160.3CBS WATSNA-160/160.3CBS(手柄) WATSNA-160/160.3PCIF WATSNA-160/160.4CBR WATSNA-160/160.4PCR WATSNA-160/160-4CBR WATSNA-160/160A 3PCR WATSNA-160/160A 4CBR WATSNA-160/160A 4CBRXF WATSNA-160/160A 4PCR WATSNA-160-125-3CBI WATSNA-160-40-3CBI WATSNA-160A/120A 3CBR WATSNA-160N/125-3CBR WATSNA-200A/4PCR WATSNA-250/125 4CBR WATSNA-250/160 4PCR WATSNA-250/200 4PCR WATSNA-250/200.3CBR WATSNA-250/200.4CBR WATSNA-250/200.4CBS WATSNA-250/200A 4CBR WATSNA-