Instruction Manual

27
Doc. #: 0260011-J0 Rev B
The recommendations in Table F are for reference only. A registered professional engineer
must review and approve or modify these recommendations in compliance with applicable
national and local electrical and building codes.
NOTE:
Table F — 24kVA & 12KVA 120/240V Split Phase or 120/208
2-Pole 4i shelf Systems
Models
AMPS24-2-24-i4
0260012-206
AMPS24-2-12-i2
0260012-204
AC Input
AC Input Voltage 120/208V or 120/240V 120/208V or 120/240V
Full Load AC Input Current
(per phase)
106A 53A
AC Input poles & wiring 3w + G 3w + G
Wiring 2 pole 2 pole
SCCR 2100A 1600A
Recommended
AC input Breaker/fuse
(Note: 2)
150A 70A
Recommended
AC Input Wire size,
90ºC copper (Note 1)
NEC 50ºC
2/0 4
CEC 50ºC
2/0 4
Total AC Output (Max) 24kVA/19.2kW 12kVA/9.6kW
AC Output
AC Output Voltage 120/208V or 120/240V 120/208V or 120/240V
AC Output poles & wiring 3w + G 3w + G
Wiring 2 pole 2 pole
AC Output Current (per Phase) 100A 50A
Installed Inverter Output
Circuit Breaker 100% rated
100A 70A
Recommended
AC Input Wire size,
90ºC copper (Note 1)
NEC 50ºC
2/0 4
CEC 50ºC
2/0 4
AC Input & Output
connection terminals
Box lugs are rated for both Aluminum and Copper wire, #2/0 to #6
AWG. Fasten clamping screw to 120 in-lbs (14 N-m)
Note 1:
Inverter AC Input & AC Output connections: Calculations based on full load and charging current, 0.8
derating with 5 current carrying conductors, (L1,L2,L3,2XN) due to possible high harmonic content load.
Temperature correction factor for 50C applied.
Note 2:
Maximum AC Utility Service protection feeding the AMPS24 is 150A. Actual supply circuit breaker must
be sized appropriately for the supply wire used. Consult your local and national electrical codes. Double
neutral is strongly recommended for AC output wiring (and AC input wiring to the MBS) for 3Ф systems with
signicant non-linear (ie rectied capacitive) loads. Since the AC input to systems without MBS is power
factor corrected, AC wiring to systems without MBS does not require double neutral wiring.