A Buck & 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 & 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). Autotransformers can carry loads in excess of their nameplate rating. This Buck and Boost Transformer has a NEMA 3R rating, has a 120 x 240V primary voltage, and a 12/24V secondary voltage. This trandformer has a rated power of 0.5KVA. This transformer has a temperature rise of 80 C. This product has a UL listed, cULus & CSA certifications.