Emerson FPC Manuel D’Utilisation
Installation Instructions
13
150
208
427
600
(2) 350 kcmil *
416
600
(2) 350 kcmil *
240
370
500
(2) 250 kcmil *
-
-
-
380
234
300
350 kcmil
228
300
350 kcmil
400
223
300
350 kcmil
217
300
350 kcmil
415
215
300
350 kcmil
209
300
350 kcmil
480
185
250
250 kcmil
-
-
-
600
148
200
#3/0 AWG
-
-
-
200
380
312
400
(2) #3/0 AWG *
304
400
(2) #3/0 AWG *
400
297
400
(2) #3/0 AWG *
289
400
(2) #3/0 AWG *
415
286
400
(2) #3/0 AWG *
278
350
(2) #2/0 AWG *
480
247
350
(2) #2/0 AWG *
-
-
-
600
197
250
250 kcmil
-
-
-
225
380
352
450
(2) #4/0 AWG *
342
450
(2) #4/0 AWG *
400
334
450
(2) #4/0 AWG *
325
450
(2) #4/0 AWG *
415
322
450
(2) #4/0 AWG *
313
400
(2) #3/0 AWG *
480
278
350
(2) #2/0 AWG *
-
-
-
600
222
300
350 kcmil
-
-
-
300
380
469
600
(2) 350 kcmil *
456
600
(2) 350 kcmil *
400
446
600
(2) 350 kcmil *
433
600
(2) 350 kcmil *
415
430
600
(2) 350 kcmil *
417
600
(2) 350 kcmil *
480
372
500
(2) 250 kcmil *
-
-
-
600
297
400
(2) #3/0 AWG *
-
-
-
* Parallel feeders per NEC 300-20 and 310-4
FLA = Full Load Amps of Power Center
OPD = Overcurrent Protection Device inside FPC
Wire sizes based on NEC 2005, Table 310-16, using 75°C copper conductor
1. Main input power feeder should be a dedicated feeder direct from service entrance or other power source possible
2. Ground conductors recommended to be insulated conductors run with power conductors for increased system performance. Ground
FLA = Full Load Amps of Power Center
OPD = Overcurrent Protection Device inside FPC
Wire sizes based on NEC 2005, Table 310-16, using 75°C copper conductor
1. Main input power feeder should be a dedicated feeder direct from service entrance or other power source possible
2. Ground conductors recommended to be insulated conductors run with power conductors for increased system performance. Ground
conductor minimum size per NEC Table 250-66. 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.
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 310-15 note 4: For best performance, the unit should be located as close to load as practical.
Table 5
Main input circuit breaker interrupting rating
Standard interrupting rating*
208V
480V
380-415V
600V
65 kA
35 kA
35 kA
18 kA
* Refer to unit specification sheet for units equipped
with non-standard main input breakers.
with non-standard main input breakers.
Table 4
Suggested minimum input wire size data (continued)
kVA
Input
Voltage
Units with Transformers
Transformerless Units
Input
FLA
Input
OPD
Suggested Feeder
Wire Size (AWG)
Full Load
Amps
MIB Trip
Amps
Suggested Feeder
Wire Size (AWG)