Alpha Technologies AMP24 HP User Manual
Page 32
Doc. #: 0260011-J0 Rev B
30
3.8 AMPS24 HP - Recommended DC Breaker and Wire Sizes
The recommendations in this table are for reference only. A registered professional engi-
neer must review and approve or modify these recommendations in compliance with appli-
cable national and local electrical and building codes.
NOTE:
Maximum wire gauge size is 350 kcmil; 4/0 or smaller is recommended, 90
°
C or better copper only.
Model
Recommended minimum DC Breaker
rating (100% rated per feed),
Maximum DC Input
Wattage
Maximum DC
Input Current @
48Vdc, full load
Single DC feed
Dual DC feed
AMPS24-2-24
x
300
21.4 kW
480 A
AMPS24-2-21
x
250
18.7 kW
406 A
AMPS24-2-18
x
225
16 kW
333 A
AMPS24-2-9
250
125
8 kW
166 A
AMPS24-2-12
300
150
10.7 kW
240 A
AMPS24-3-18
x
225
16 kW
350 A
AMPS24-3-13.5
350
175
15 kW
250 A
AMPS24-1-10.5
250
125
9.4 kW
203 A
AMPS24-1-12
300
150
10.7 kW
240 A
AMPS24-1-9
250
125
8 kW
166 A
AMPS24-1-6
150
75
5.4 kW
120 A
AMPS24-1-4.5
120
60
4 kW
83 A
Torque specifications for DC wiring (3/8" bolts that attach the DC lugs at the back of the DC
distribution box) are as follows:
• Imperial: 190 – 240 inch/lbs
• Metric: 21.5 – 27.1 N-m