Vertiv Liebert PPC - Table 3 Main Input Circuit Breaker Interrupting Rating

Vertiv | Liebert
®
PPC
™
User Manual | Rev. 6 | 03/18 | 19
480V
15 19 14 10
—— —
30 38 50 8
50 63 80 4
75 93 125 1
100 124 170 00
125 155 200 000
150 185 250 250 kcmil
200 247 340 (2) 00*
225 278 340 (2) 00*
600V
15 15 20 12
—— —
30 30 40 8
50 50 68 4
75 74 100 2
100 99 125 1
125 124 170 00
150 148 200 000
200 197 250 250 kcmil
225 222 295 350 kcmil
* Parallel feeders per NEC 300-20 and 310-4.
FLA = Full Load Amps of Liebert PPC
OPD = Overcurrent Protection Device inside Liebert PPC
Wire Sizes based on NEC Table 310-16, using 75°C copper conductor.
NOTES:
1. Main input power feeder should be a dedicated feeder direct from service entrance or other power source, if possible.
2. Ground conductors recommended to be insulated conductors run with power conductors for increased system performance. Ground conductor minimum
size per NEC Table 250-95. Input power feeder conduit may be used as the safety ground conductor. When conduit is used, adequate electrical continuity
must be maintained at conduit connections to enclosures and throughout conduit run.
3. Input feeder wire size listed in this table is the minimum feeder size recommended. Larger wire size may be required because of voltage drop or supply
overcurrent protection device.
4. For transformerless units with 3-phase 4W + G input feeder, larger wire size may be required because of excessive neutral current (see NEC Table 310-16
Notes 8 and 10). For best performance, the unit should be located as close to the load as practical.
Table 3 Main input circuit breaker interrupting rating
Standard Interrupting Rating*
Unit kVA 208V 480V 380-415V 600V
15-100 100 kA 35 kA 35 kA 25 kA
125-150 100 kA 65 kA 65 kA 50 kA
200-225 — 65 kA 65 kA 50 kA
* Refer to unit specification sheet for units equipped with non-standard main input breakers.
Table 2 Suggested minimum input wire size data (continued)
Input
Voltage kVA
Units with Transformers Transformerless Units
Input
FLA
Input
OPD
Suggested Feeder
Wire Size (AWG)
Input
FLA
Input
OPD
Suggested Feeder
Wire Size (AWG)