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About product and suppliers:
            825 3 phase transfer switch products are offered for sale by suppliers on Alibaba.com, of which other switches accounts for 8%, rotary switches accounts for 3%. 

A wide variety of 3 phase transfer switch options are available to you, 

There are 585 suppliers who sells 3 phase transfer switch on Alibaba.com, mainly located in Asia. The top countries of supplier is China, from which the percentage of 3 phase transfer switch supply is 100% respectively.