Sigineer Power MS6048D, User Manual

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3.3 Battery Wiring
Before connecting all wiring, please take off the DC and AC terminal cover by removing their screws.
The DC terminal bolt size is M6 and the diameter of the DC cable holes on the box is 18mm.
It is suggested the battery bank be kept as close as possible to the inverter. The following table is a suggested
wiring option for DC cable with length from 1 meter to 5 meters.
Ring terminal:
Model#
Maximum
Amperage Battery
capacity
Wire Size Ring Terminal Torque
value
Cable
mm2 Dimensions
D (mm)
L (mm)
M3048BP 71A 100AH 1*4 AWG 35 6.4 39.2 2-3Nm
M5000H-48BP 117A 200AH
1 x 2AWG 35 6.4 39.2 2-3Nm
Recommended breaker specification of battery for each inverter:
Model 1 unit
M3048BP 100A/60VDC
M5000H-48BP 150A / 60VDC
*If you want to use only one breaker at the battery side for the whole system, the rating of the breaker
should be X times current of 1 unit. “X” indicates the number of inverters connected in parallel.
Recommended breaker specification of AC input with single phase:
Model 2 units 3 units 4 units 5 units 6 units
M3048BP
100A/120VAC 150A/120VAC 200A/120VAC 250A/120VAC 300A/120VAC
M5000H-48BP 100A/230VAC 150A/230VAC 200A/230VAC 250A/230VAC 300A/230VAC
Note1: Also, you can use 50A breaker for only 1 unit, and each inverter has a breaker at its AC input.
Note2: Regarding three phase system, you can use 4 poles breaker, the rating is up to the current of the
phase which has the maximum units. Or you can follow the suggestion of note 1.
Recommended battery capacity
Inverter Parallel Quantity 2 3 4 5 6
Battery Capacity
(M3048BP) 200AH 300AH 400AH 500AH 600AH
Battery Capacity
(M5000H-48BP) 400AH 600AH 800AH 1000AH 1200AH
WARNING! Be sure that all inverters will share the same battery bank. Otherwise, the inverters will
transfer to fault mode.
Please follow the above minimum wire size requirement.
One cable is always best, but if there is a problem obtaining for example 100mm²
cable, use 2*50mm² or
3*35mm² instead, as long as the square area adds up. Performance of any product can be improved by
thicker cable and shorter runs, so if in doubt round up and keep the length as short as possible.