Single Phase Dry-Type Isolation Transformer, 20 kVA, 480V to 240V, Copper Wire, NEMA 1 Enclosure

The Single Phase Dry-Type Isolation Transformer delivers reliable 20 kVA of power conversion, stepping voltage between 480V and 240V AC with center tap capability, providing both 120V and 240V split-phase output. Designed for 3-phase primary input (H1, H2, H3) from a 480V three-phase system, the secondary connections (X1, X2, X3) deliver 120V across X1-X2 and X2-X3, with 240V across X1-X3 and X2 serving as neutral. Built with premium copper windings and rated for a 150°C temperature rise with Class F/H insulation, this transformer is engineered for long-lasting performance. It features natural air cooling (AN) with a fan-reserved option (AN/AF) for added flexibility. Housed in a NEMA 1 indoor general-purpose enclosure with a sturdy double-door steel cabinet and ventilated top panel, it is well-suited for commercial and industrial indoor installations. Operating at 60 Hz and compliant with UL standards meeting US energy efficiency requirements, this transformer is an ideal solution for facilities requiring dependable step-up or step-down voltage conversion with total equipment loads up to 16 kW.

• RATED POWER & TYPE: This 20 kVA single phase dry-type isolation transformer steps voltage up or down between 480V and 240V AC with center tap, supporting 120/240V split-phase output.
• COPPER WIRE CONSTRUCTION: Wound with high-quality copper wire for superior conductivity, reduced energy loss, and long-lasting reliable performance in demanding electrical applications.
• VERSATILE CONNECTIONS: Primary connections H1, H2, H3 draw from a 480V three-phase system, while secondary connections X1, X2, X3 deliver 120V and 240V outputs with a neutral zero line.
• EFFICIENT COOLING & ENCLOSURE: Features natural air cooling (AN) with fan-reserved capability (AN/AF), housed in a NEMA 1 indoor general purpose enclosure with Class F/H insulation rated to 150°C.
• UL STANDARD COMPLIANT: Built to meet US standard energy efficiency requirements at 60 Hz, making it suitable for industrial and commercial power distribution applications.