480V:347V:277V, ATX Series Datasheet by Thomas Research Products

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Thomas ECOSYST EM Research Products ”E 0“ US 4—80V RED 125 VA 245 and 460 VA $ng 0 o I I: : oi; 3:. E i T7 W747 \ E @ D7
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480:347:277 Series
Step-Down Autotransformers
for Lighting Applications
Rev 4-18-2019
• Input Voltage: 480V, 60 Hz or 347V, 60 Hz
• Output Voltage: 277V, 60 Hz
• Insulation Rating: 125 & 460– 105ºC, 245– 130ºC
• Non-isolated Autotransformer
• 5 Year Warranty - Industry Leading
Model A
(in)
B
(in)
C
(in)
D
(in)
E
(in)
125VA See drawing below (mm)
245VA 3.39 2.83 2.81 2.61 3.14
460VA 3.78 3.23 3.19 2.95 3.31
240 ±10
60.0 max
58.0 max
83.0 ±1.0
95.0 ±2.0
2- 4.5x7
125 VA
A
B
C
E
D
240 ±10
245 and 460 VA
480V RED
347V BLUE
277V BLACK
220V ORANGE
(245VA Model Only)
COM WHITECOM WHITE
Wiring Notes:
Wye 480V system–Connect red (or blue for 347V) and
white wires to any two phase wires.
Delta 480V– for use with grounded Delta applications.
Step-down autotransformers designed especially for lighting applications, typically used
with 277V LED Drivers, T-5 or T-8 Electronic Fluorescent Ballasts or Electronic HID Ballasts
in Industrial and Commercial applications.
Features
Dimensions Wiring
Part Model Losses Input Current
Max Load
Input Current
No Load
Weight
(lbs)
93057322 480:347:277-125VA 7W 0.26A 0.070A 2.3
93023006 480:347:277:220-245VA 10W 0.57A 0.080A 5.3
93057036 480:347:277-460VA 18W 0.95A 0.220A 7.2

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