Magnum Energy Integration Guide

REV070219
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Table 2.0 – 04C Gen Run Amps
04C Gen Run Amps autostarts the generator based on the amount of AC amps needed to handle the
load the inverter is running.
A battery bank with a maximum continuous discharge rate greater than the inverter’s load rate does not
need to utilize the 04C Gen Run Amps setting.
For example, 4 x PHI 3.8 48V batteries paired with 1 x Magnum MS 4448 PAE run no risk of over-
discharging to power the instantaneous load:
• Max. continuous discharge current for 4 x PHI 3.8 48V = 4 x 37.5A = 150ADC
o 150A x 48V = 7,200 WDC
• Assuming inverter efficiency is 94%*, WattsAC = WDC ÷ 0.94
o 7,200 WDC ÷ 0.94 = 7,660 WAC
• 1 x Magnum 4448 PAE inverter has a continuous power rating of 4,000 WAC, and a 5
second surge power rating of 5,800 WAC
o 7,660 W > 5,800 W
o The 4 batteries have a higher instananteous power rating than the inverter
Conversion from DC to AC Gen Run Amps for 1 to 5 PHI 3.8 kWh 24V Batteries
A
B
C
D
E
F
# of Parallel
Batteries
DC Current
Limit
ADC x VDC (24)
WDC ÷ Inverter Efficiency
(93% = .93)
Column D ÷ Inverter
Voltage (120 or 240 VAC,
dep. on inverter; 240
VAC used below)
Round down
(programmable range =
5 - 60A)
1
45A
1,080 WDC
1,161 WAC
4.8 AAC
2
90A
2,160 WDC
2,323 WAC
9.7 AAC
9 AAC
3
135A
3,240 WDC
3,484 WAC
14.5 AAC
14 AAC
4
180A
4,320 WDC
4,645 WAC
19.4 AAC
19 AAC
5
225A
5,400 WDC
5,806 WAC
24.2 AAC
24 AAC
*The Magnum MS4024PAE has a peak inverter efficiency of 93%.
Conversion from DC to AC Gen Run Amps for 1 to 5 PHI 3.8 kWh 48V Batteries
A
B
C
D
E
F
# of Parallel
Batteries
DC Current
Limit
ADC x VDC (48)
WDC ÷ Invert Efficiency
(94% = 0.94)
Column D ÷ Inverter
Voltage (120 or 240 VAC,
dep. on inverter; 240 VAC
used below)
Round down (only
whole #s can be used
as input)
1
37.5A
1,800 WDC
1,915 WAC
8 AAC
8 AAC
2
75A
3,600 WDC
3,830 WAC
16 AAC
16 AAC
3
112.5A
5,400 WDC
5,745 WAC
23.9 AAC
23 AAC
4
150A
7,200 WDC
7,660 WAC
31.9 AAC
31 AAC
5
187.5A
9,000 WDC
9,574 WAC
39.9 AAC
39 AAC
*The Magnum MS4448PAE has a peak inverter efficiency of 94%.