Alpha Technologies AMP24 HP - Manual (Page 28)

Doc. #: 0260011-J0 Rev B 26
The recommendations in Table E 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 E — 21kVA, 18kVA, & 9.0kVA 120/240V Split Phase or 120/208
2-Pole 3i+1R Shelf Systems
Models AMPS24-2-21-H2-i2
0260011-107
AMPS24-2-18-H4
0260011-106
AMPS24-2-9-H2
0260011-103
AC Input
AC Input Voltage 120/208V or 120/240V 120/208V or 120/240V 120/208V or 120/240V
Full Load AC Input Current
(per phase)
118A 121A 61A
AC Input poles & wiring 3w + G 3w + G 3w + G
Wiring 2 pole 2 pole 1 pole
SCCR 2100A 2100A 1600A
Recommended
AC input Breaker/fuse
(Note: 2)
150A 150A 80A
Recommended
AC Input Wire size,
90ºC copper (Note 1)
NEC 50ºC 2/0 2/0 3
CEC 50ºC 2/0 2/0 3
Total AC Output (Max)
21kVA/
16.8kW
18kVA/
14.4kW
9kVA/
7.2kW
AC Output
AC Output Voltage 120/208V or 120/240V 120/208V or 120/240V 120/208V or 120/240V
AC Output poles & wiring 3w + G 3w + G 3w + G
Wiring 2 pole 2 pole 1 pole
AC Output Current (per Phase) 87.5A 75A 37.5A
Installed Inverter Output
Circuit Breaker 100% rated
100A 100A 70A
Recommended
AC Input Wire size,
90ºC copper (Note 1)
NEC 50ºC 2/0 2/0 3
CEC 50ºC 2/0 2/0 3
AC Input & Output
connection terminals
Box lugs are rated for both Aluminum or Copper wire, #2/0 to
#6 AWG. Fasten clamping screw to 120 in-lbs (14 N-m)