A Buck and Boost Transformer is an insulating transformer with either a 120 V x 240 V primary with a 12/24 V or 16/32 V secondary, or a 240 V x 480 V primary with a 24/48 V secondary. A Buck and Boost Transformer is also useful in applications where the primary and secondary are interconnected for use as an autotransformer. The equipment enclosure is designed and constructed for indoor or outdoor use and is NEMA 3R rated. Square D® Buck and Boost Transformers are UL and cUL listed (UL 506).

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