The 10TB18F is a part of Marco, which is a line of electrical distribution products for industrial and commercial applications. It is a Type 1, Distribution Transformer and is offered with ratings of 10kva and 18kva. This transformer is built with durable construction, and is designed to be reliable and energy efficient. It has a Class F insulation system, and its primary voltage is 208Y/120V. The 10TB18F transformer has a galvanized steel enclosure, a molded plastic base, and provides a 120V/240V delta primary voltage, plus a 20/30 or 25/32 secondaries combination. It is also UL listed, CSA certified, and RoHS compliant. This transformer meets ANSI standards and is ideal for use in a wide range of applications. It is designed to provide quality power distribution and is the ideal solution for both residential and commercial applications.