Buy 45 kva Three Phase Transformer 480V Delta Primary – 208Y/120V Secondary

Description

A 45 kVA three-phase step-down transformer, 480 V delta to 208Y/120 V, $3,500 from $3,999 — outdoor rated, aluminium wound, 80°C rise, in a NEMA 3R steel enclosure.

Same specification as the other 45 kVA unit in this category; these are individual items from stock rather than a single listing, so check the photographs if condition matters to you.

The 80°C temperature rise is the number worth understanding. A lower rise transformer runs cooler at the same load than a 115°C or 150°C unit, which shows up as longer insulation life and better tolerance of sustained heavy load. On a unit that will sit outdoors in Texas heat feeding a workshop panel, that matters more than the purchase price difference.

Floor mounted, 60 Hz, no knockouts, with a weathershield included. Installation is licensed electrical work.