Dongan has a full complement of three phase ventilated transformers from 3kVA to 300kVA We offer encapsulated three phase transformers from 3kVA through 9kVA and ventilated from 15kVA and up. Our enclosures are NEMA 3R without the addition of a costly weather shield as standard with only some exceptions at the smallest kVA which are indicated in the catalog. Our transformers can be wall mounted or floor mounted cabinet style depending upon the kVA rating. These are UL and CUL listed and are copper wound through 9kVA although we offer copper designs on any of the products in the catalog. Our aluminum wound transformers start at 15kVA and extend through 225kVA as standard off the shelf. All of our transformers have an electrostatic shield between the primary and secondary for transient noise reduction. Insulation systems are 200 or 220 depending upon the series of transformer. Copper windings and copper lead wire terminations used throughout.

• UL Class 180C insulation system with a 115C temperature rise at a maximum ambient of 40C.
• NEMA Type 3R, wall mount enclosure suitable for vertical mount in indoor or outdoor applications. No extra rain shields required for outdoor use.
• Multiple knockouts provide convenient conduit entry and exit locations through the side and back of the wiring compartment.
• Ground studs provided for bonding compatibility with both metallic and nonmetallic conduit.
• Slim profile provides convenient mounting for space limited areas.