Vertiv NetSure 7100 Series Installation Manual page 35

Table 4:
Recommended AC Input Branch Circuit Protection and Wire Size
(Nominal 208 VAC / 240 VAC, Single Phase, 50 Hz / 60 Hz)
Provides "1 AC Feed per 2 Rectifiers" Single Phase Input Terminations
Input Input
Voltage Current
208 VAC 20 A
240 VAC 17.5 A
The AC input branch circuit protective device should be of the time-delay or high inrush type.
1
2 Maximum over current protection device is 30 A.
Wire sizes based on recommendations of the American National Standards Institute (ANSI) approved National
3
Fire Protection Association's (NFPA) National Electrical Code (NEC). Table 310.15 (B) (16) for copper wire at
90 °C conductor temperature. For operation in countries where the NEC is not recognized, follow applicable
codes.
Equipment grounding conductors must be provided with the AC input conductors supplied to the assembly.
4
Frame ground terminals must be connected to earth ground, not power system neutral. Equipment grounding
conductor size based on recommendations of the NEC Table 250-122 for copper wire. If aluminum or copper
clad aluminum grounding conductor is used, refer to Table 250-122 for increased conductor size. For
operation in countries where the NEC is not recognized, follow applicable codes.
THHN 90°C Wire.
5
System with Four (4) Spec. No. 588705300 Rectifier Module Assemblies: Conduit sized for six (6) current
6
carrying conductors and one (1) ground conductor per conduit (based on NEC recommendations), for six (6)
PCUs. For operation in countries where the NEC is not recognized, follow applicable codes.
7 Input current based on R48-2000e3 rectifier module.
Vertiv | NetSure 7100 Series Installation Manual (IM582127000100) | Rev. H
AC Input Termination Assembly
Overcurrent
(7) Protection (1)
25 A (2)
25 A
(2)
40 °C Ambient
Temperature
Conduit
Wire
(3) (4) (5)
Size
(6)
10 AWG 3/4"
10 AWG 3/4"
35