PowerWalker VFI 20000-40000TAP 3/3 BI, User Manual

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3-17
CAUTION
External overcurrent protection is not provided by this product, but is required by codes. Refer to
table 3-5 for wiring requirements. If an input/output lockable disconnect is required, it is to be
supplied by the user.
NOTE
Callout letters
A
,
B
,
C
, and
D
map to Figure 5-5.
Table 3-5. Input / Output Ratings and External Wiring Requirements for the VFI 20000-80000TAP
Basic Unit Rating
cross-sections
Refer the IEC
62040-1
Units Rating 50/60 Hz
kVA
kW
15
13.5
20
18
30
27
40
36
60
54
80
72
Input and Output Voltage
Volts
400/400 400/400 400/400 400/400 400/400 400/400
A: AC Input to UPS Rectifier (0.99 Minimum PF)
Full load current plus battery recharge current
(3) Phases
Amps 23 31 46 61 92 123
Conductor Size (Phase A, B, C )
min mm
2
6×1 6×1 6×1 16×1 16×1 25×1
max mm
2
6×1 10×1 25×1 25×1 50×1 70×1
B: AC Input to UPS Bypass (Five Wire, Dual-Feed)
Full Load Current
(3) Phases
Amps 22 29 43 58 87 115
Conductor Size (Phase A, B, C )
min mm
2
6×1 6×1 6×1 16×1 16×1 25×1
max mm
2
6×1 10×1 25×1 25×1 50×1 70×1
C: DC Input from External Battery (432 Vdc)
(1) Positive, (1) Negative
Total Amps 34 46 69 92 137 183
Conductor Size
min mm 2 6×1 6×1 10×1 16×1 35×1 50×1
max mm
2
16×1 25×1 35×1 50×1 50×2 70×2
D: AC Output to Critical Load (Five Wire)
Full Load Current
(3) Phases
Amps 22 29 43 58 87 115
Conductor Size (Phase A, B,C )
min mm
2
6×1 6×1 6×1 16×1 16×1 25×1
max mm
2
6×1 10×1 25×1 25×1 50×1 70×1
Grounding 1.0times
Neutral (N) (Mains/Load):( Non-linear load )
1.7times
Backfeed protection device
Clearance distance:
≧
2.0mm
Break time:
≦
15s