ABB MegaFlex 1000 UL S1 Installation Manual page 31

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Fig. 4.8.5-3 Dual Input Utility Rectifier & Bypass
Size of Branch Circuit Over Current Protection:
Every power line must be singularly protected by UL 489 overcurrent protective devices (provided by others)
according to the ampacity table below.
Non-standard Circuit Breakers shall be restricted to access, in accordance with NEC 240.6(c).
Maximum input short circuit current at CB1 and CB2 is 100 kArms.
CB1 - AC Input Rectifier
UPS rating
MegaFlex 1000
MegaFlex 1100
MegaFlex 1200
MegaFlex 1500
MegaFlex 1600
Wiring!
Wire sizing according to NEC for 167°F (75°C) copper or aluminum wire at 104°F (40°C).
Wiring requirements:
Rectifier AC input/Bypass AC input / AC
output ports.
DC Input.
Maximum recommended cable size (type THWN/THHN copper, 167°F/75°C) * per phase/pole and ground
conductors.
Each conduit shall terminate its ground conductor to UPS ground bus bar. Wires shall be rated 600V.
Conduits (provided by others) must be installed between UPS and the power source.
UPS rating AC Input Rectifier (C)
MegaFlex 1000 6x500 + AWG 4/0
MegaFlex 1100
8x500 kcmil + AWG 4/0 6x500 kcmil + AWG 4/0
MegaFlex 1200 8x500 + 250 kcmil
MegaFlex 1500
10x500 + 350 kcmil
MegaFlex 1600
*) for AA-8000 Aluminum cables contact ABB Service Center.
Recommended two-hole cable lugs:
Cable Size T&B Copper / Two holes
500 kcmil TnB 54223
750 kcmil -
CB2 - AC Input Bypass
100% Rated
1400 A
1600 A
2000 A
2500 A
2500 A
AC Input Bypass (B)
6x500 kcmil + AWG 4/0
8x500 kcmil + AWG 4/0
8x500 + 250 kcmil
MegaFlex 1000 to 1600
Fig. 4.8.5-4 Common Input Utility Rectifier & Bypass
100% Rated
1400 A
1400 A
1600 A
2000 A
2000 A
3-phase, 3-wire plus ground (each conduit shall
contain one cable per circuit's phase and one
ground cable).
2 poles (positive and negative) plus ground
(each conduit shall contain one positive, one
negative and one ground cable).
AC Output (D)
6x500 kcmil + AWG 4/0
8x500 kcmil + AWG 4/0
8x500 kcmil + AWG 4/0
8x500 + 50 kcmil
T&B Aluminum / Two holes
-
TnB 60278NT
UPS Installation Guide / REV-A
CB3 - AC Input CB4 - DC Input
100% Rated 100% Rated
1400 A
1600 A
2000 A
2500 A
2500 A
DC Input (K)
8x600 + 250 kcmil
8x600 + 250 kcmil
8x600 + 250 kcmil
14x600 + 50 kcmil
3000 A
3000 A
3000 A
4000 A
4000 A