High Voltage - Transformers

Keystone’s 480V to 277V 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...

Keystone’s 480V to 277V 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...

Keystone’s step down transformers are ideal for powering down from a 480V or 347V system to a 277V system, rated up to 375W. Utilizing a precision wound core and coil integrated design, these auto transformers provide a safe and reliable solution...

Key Features Maximum power - 375VA Input Frequency - 60 Hz Power Consumption - No load <11W Input Wires - 14" #14AWG Red, Yellow, White Output Wires - 14" #14AWG Black,...

Description Step down auto transformers are non-isolated, makin them compact and lightweight compared to isolated transformers. Step down from 480V/347V with a maximum power of 150VA. Key Features Maximum power - 150VA 120 Input Frequency -...