Manufacturer Name: Trane Product Number: TRR0664 OEM Part Number: TRR0664 Product Description: 460/575-115/230V 350Va Xformer Weight:14.62lbs/6631.52g The Trane TRR0664 Transformer can play a specific role in HVAC systems and the primary work of this equipment is to transform high primary voltage (460 to 575V) to lower secondary voltage (115 to 230V). https://www.partshnc.com/460575-115230v-350va-xformer-5