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Home » Kaeser SFC variable frequency drive compressors
Kaeser Sigma frequency control 45, 55, 75S, 90S and 110S compressors include SynRM motor-drive combinations that have an IES2 classification. The rotors are made of electrical steel and contain no magnets. SFC T models are available with optional integrated refrigerated dryers that use R-513A nonflammable, nontoxic refrigerant.