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About product and suppliers:
        Alibaba.com offers 5,257 low frequency ups products. About 49% of these are uninterrupted power supply (ups). 

A wide variety of low frequency ups options are available to you, such as security / monitoring / alarm, medical, and telecommunications. You can also choose from overvoltage, lightning, and overcurrent. As well as from on-line, standby. And whether low frequency ups is single phase, or three phase. 

There are 5,235 low frequency ups suppliers, mainly located in Asia. The top supplying countries or regions are China, Turkey, and India, which supply 99%, 1%, and 1% of low frequency ups respectively. 

Low frequency ups products are most popular in Africa, Mid East, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 3,274 with ISO9001, 1,091 with ISO14001, and 684 with OHSAS18001 certification.