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12
3. Installation
3.6 Power Cables
The cable design shall comply with the voltages and currents provided in this section, and in accordance with local electrical codes.
WARNING!
UPON STARTUP, ENSURE YOU ARE AWARE OF THE LOCATION AND OPERATION OF THE EXTERNAL
ISOLATORS CONNECTED TO THE UPS INPUT/BYPASS SUPPLY OF THE UTILITY DISTRIBUTION PANEL.
ENSURE THESE SUPPLIES ARE ELECTRICALLY ISOLATED AND POST ANY NECESSARY WARNING SIGNS TO
PREVENT INADVERTENT OPERATION.
Cable Sizes
UPS Model
Cable Sizes (THHW wiring at 75°C)
AC Input AC Output Neutral Grounding Lug
Gauge Torque Gauge Torque Gauge Torque Gauge Torque
S3MT-
60K480V
50mm
2
Max.
50mm
2
x2
25N•m
50mm
2
Max.
50mm
2
x2
25N•m
70mm
2
x2
Max.
70mm
2
x2
25N•m
50mm
2
Max.
50mm
2
x2
25N•m M8
S3MT-
60K600V
35mm
2
Max.
50mm
2
x2
25N•m
50mm
2
Max.
50mm
2
x2
25N•m
70mm
2
x2
Max.
70mm
2
x2
25N•m
50mm
2
Max.
50mm
2
x2
25N•m M8
S3MT-
100K480V
70mm
2
x2
Max.
120mm
2
x2
50N•m
70mm
2
x2
Max.
95mm
2
x2
50N•m
120mm
2
x2
Max.
120mm
2
x2
50N•m
95mm
2
Max.
120mm
2
50N•m M10
S3MT-
100K600V
50mm
2
Max.
70mm
2
x2
50N•m
70mm
2
x2
Max.
95mm
2
x2
50N•m
120mm
2
x2
Max.
120mm
2
x2
50N•m
95mm
2
Max.
120mm
2
50N•m M10
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