Alternate color or configuration shown Bosch D1640 voltage transformer Bosch D1640. Width: 3.19" (81 mm), Depth: 2.76" (70 mm), Height: 2.2" (56 mm) Manufacturer: Bosch SKU: 6593825 Manufacturer part number: D1640 MSRP: $21.90 Price: $17.50 Qty: Add to cart Custom wishlist OK Add to wishlist Add to compare list Email a friend System transformer rated at 16.5 VAC, 40 VASuitable for use on approved UL applications in the USA Overview Specifications Contact Us System transformer rated at 16.5 VAC, 40 VASuitable for use on approved UL applications in the USA Products specifications Attribute name Attribute value Width 3.19" Depth 2.76" Height 2.2" Technical details Product color White Power AC input voltage 40 V Product tags (51243)