Eaton Ferrups FX UPS P-164000906 Eaton Ferrups FX User’s Guide P-164000906—Rev 05
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Figure 9. FX 3100 60 Hz 120 Vac Input / 120 Vac Output Using a BPEFX Bypass Switch
L1
L1
L1
L1
N
N
N
L1
L
L2
N
L
N
L2
AC Input
AC Output
UPS
AC Line Input
AC To Loads
AC To
UPS Input
AC From
UPS Output
+DC -DC
Cabinet Ground
External Batteries
Load Distribution
Panel
Bulding Service
Panel
GR
IG
L1
N
FX 3100 120V In - 120V Out Using a BPE Bypass Switch
9 12
11
15 14 13
5 8 7
1 4 3
Bypass Switch
BUILDING GROUNDING
ELECTRODE OR
PROTECTIVE EARTH
SYSTEM
Note 3
Note 7
Note 3
Note 7
Note 2
Note 3 Note 7
Note 4
Note 5
Note 7
Note 1
Note 9
Note 8
Note 6
Note 3
Note 4
Table 9. Wire Size Recommendations
Model
Input Voltage
Input Breaker Size
75°C Copper Wire Size
FX3100
120 Vac
50A
8 AWG (8.4 mm²)