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About product and suppliers:
        Alibaba.com offers 207 30 amp transfer switch products. About 46% of these are other switches, 4% are power distribution equipment, and 1% are push button switches. 

A wide variety of 30 amp transfer switch options are available to you, such as dual, ac three phase. You can also choose from mini, residual current. As well as from >500w, 1 - 50w. And whether 30 amp transfer switch is 380v, or 220v. 

There are 206 30 amp transfer switch suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and Australia, which supply 97%, 1%, and 1% of 30 amp transfer switch respectively. 

0 amp transfer switch products are most popular in Mid East, Southeast Asia, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 56 with ISO9001, 31 with Other, and 9 with ISO14001 certification.