GE 480-277 Step-Down
Autotransformer
Voltage: 120-277V
Individually Boxed (plain box ((picture 2)) Order 6 and they come in a factory 6-pack case (picture 5).
GGETR4802772
GE ProLine® 480V to 277V Step-Down Autotransformers are designed
specifically for lighting applications to step down 480V 3-phase power to 277V
single-phase power in conjunction with 277V or universal voltage (120-277V)
linear fluorescent or HID electronic ballasts. 480V is often considered a
“dirty” voltage due to other high voltage devices that are typically on a 480V
circuit such as machine motors, conveyor motors, arc welders, etc.. These loads
generate transients when started or switched which can damage electronic
ballasts. The GE step-down autotransformer helps to absorb transients before
reaching electronic ballasts as well as stepping down the voltage to 277V where
most electronic ballasts operate. Many existing 480-volt installations are Delta
480V transformers. New installations are typically Wye 480V. High failure rates
are common with electronic 480V ballasts particularly with Delta 480V systems.
GE ProLine® 480V to 277V Step-Down Autotransformers provide a easy, flexible and
most importantly a reliable solution for use with electronic energy saving
ballasts in 480V Wye and grounded Delta applications. You can count on GE to
answer your lamp and ballast questions at 1-888-GEBALLAST.
Performance Features
• Non-Isolated Autotransformer
• Input Voltage 480 Vrms, 60 Hz
• Full Load Output Voltage 277 Vrms, 60 Hz
• Maximum Power 250W (VA) or 375 W (VA)
• Max Case Temp 105 C
• Thermally Protected
• Sound Rated A
• UL Listed – Does not require continuous updates to fixture UL files as opposed
to UL Recognized transformers.
• Easy solution for retrofitting 480V applications with any electronic ballast
up to 375 watts.
• T8 style ballast housing – same mounting as standard electronic T8 ballasts.
• Low-profile housing fits within standard fixtures
• Five-year limited warranty Applications • Industrial, warehousing,
manufacturing,