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76 Installation Guide APC Silcon 240-320kW 480V UPS
990-4049
Appendix
8.0 Appendix
8.1 Table 1. Installation Planning Data
Notes:
1. Nominal (Nom) Input current based on rated load.
2. Maximum (Max:) Input current based on full battery recharge + nominal load.
3. Recommendation: Input and Output cables run in separate conduits.
4. Suggested Input overcurrent protection based on continuous full load
Maximum Input current. Suggested Load Side Overcurrent Protection based on Nominal current.
Breakers sized per NEC 220-3 and NEC 240-3(b). 80% rated breakers assumed. Trip rating based on
NEC 240-6(a) standard breaker sizes.
5. Nominal battery voltage assumed to be 2.0 volts/cell (lead technology).
6. Recommendation: All cables should be sized in accordance with NEC 210-19 FPN No. 4
branch feeder voltage drop of 3%. Voltage drop not considered in above chart. Application
Service (480V
3 Phase, 3 or 4 wire
grounded Wye)
Main Input
Field
Battery Bank
UPS Module
Service Bypass Panel
Load
3 Phase,
3 or 4
Wire)
* Supplied by others
Breaker*
Wiring*
Q1
Q3
Q2
Field
Wiring*
(480V
Bypass
input breaker
*
Input must be limited to less than 50 kAIC
Installation Planning Data
APC Silcon Series
AC Input (480V) Battery System DC AC Output (480V)
Power rating Service Load side Heat
Source P (kW) I (A) Min. Input Over- Full I
Nom
I
Max
Over- Rejec-
kW kVA Pf V Hz Nom. Max. Nom. Max.
Cable
(per phase)
current
Protection*
V
n
(Vdc)
load
P(kW)
Disch
(A)
Disch
(A)
I
n
(A)
current
Protection*
tion
kBTU/hr
120 120 1 480 60 126.8 140.0 152.5 168.0 1 x 4/0 225AT 2x384 127.0 166 194.8 144.0 200AT 23.2
160 160 1 480 60 167.5 186.0 201.5 224.0 1 x 350mcm 300AT 2x384 168.8 220 258.9 192.0 250AT 25.6
240 240 1 480 60 252.9 280.0 304.2 336.0 1 x 700mcm /
2 x 4/0
450AT 2x384 252.1 328 386.7 289.0 400AT 44.0
320 320 1 480 60 334.4 373.0 402.2 448.0 2 x 350mcm 600AT 2x384 335.4 437 514.4 385.0 500AT 49.1
400 400 1 480 60 415.8 460.0 500.1 560.0 2 x 350mcm 700AT 2x384 421.9 549 647.1 482.0 600AT 35.9
500 500 1 480 60 519.2 574.0 624.5 700.0 2 x 700 /
3 x 350mcm
900AT 2x384 525.8 685 806.4 602.0 800AT 65.5
Notes 1 2 3,6,8,A,B,C,D 4,7,9,D 5 6,10 6,11 4,6,8,D 12
* Not provided by APC