Acme T2A533401S, 9 kVA Dry Type Distribution Transformer. Acme three phase low voltage distribution transformers are designed for industrial and commercial applications. All of Acme general purpose transformers are rated for 600 volts and below. Encapsulated units are offered in ratings up to 15kVA. 480 Delta Primary Volts 240 Delta/120 Tap Secondary Volts May be used on a 4 Wire 480Y/277 Volt Supply 3 phase, 60Hz.