250VA Step Down Transformer - 480V/347V to 277V Single Phase Voltage Converter for Industrial Equipment & Commercial Lighting

Keystone Technologies KTAT-250-480-277-A Step-Down Auto-Transformers are designed to step down 480V to 277V single-phase power. These transformers enable consumers to utilize common universal voltage (120-277V) electronic ballasts in applications where the main facility power is 480V.