3 dc cable connections, Installation, Table 2-2, dc wire size for increased distance – Magnum Energy MS-G Series User Manual
Page 25
©
2015 Sensata Technologies
Page 17
Installation
Table 2-2, DC Wire Size For Increased Distance
Inverter
Model
Minimum Recommended DC Wire Size (one way)*
5 feet or less (≤1.5 m)
5 to 10 feet (1.5 to 3.1 m) 10 to 15 feet (3.1 to 4.6 m)
In Conduit
In Free Air
In Conduit
In Free Air
In Conduit
In Free Air
MS2000-G
#4/0 AWG
(107.2 mm
2
)
#2/0 AWG
(67.4 mm
2
)
#4/0 AWG x2
(107.2 mm
2
)
#4/0 AWG
(107.2 mm
2
)
not
recommended
#4/0 AWG x2
(107.2 mm
2
)
MS2012-G
#4/0 AWG
(107.2 mm
2
)
#2/0 AWG
(67.4 mm
2
)
#4/0 AWG x2
(107.2 mm
2
)
#4/0 AWG
(107.2 mm
2
)
not
recommended
#4/0 AWG x2
(107.2 mm
2
)
MS2812-G
#4/0 AWG
(107.2 mm
2
)
#4/0 AWG
(107.2 mm
2
)
#4/0 AWG x2
(107.2 mm
2
)
#4/0 AWG x2
(107.2 mm
2
)
not
recommended
not
recommended
MS4024-G
#4/0 AWG
(107.2 mm
2
)
#2/0 AWG
(67.4 mm
2
)
#4/0 AWG x2
(107.2 mm
2
)
#4/0 AWG
(107.2 mm
2
)
not
recommended
#4/0 AWG x2
(107.2 mm
2
)
* Copper wire rated with 90°C (194°F) insulation at an ambient temperature of 30°C (86°F).
2.4.3
DC Cable Connections
Do not put anything between the battery cable ring lug and the battery post or the fl at metal part
of the inverter’s DC terminal. When connecting the battery cable to the battery post or inverter
DC terminal, the cable should be placed directly against the inverter terminal or battery post.
Incorrectly installed hardware causes a high resistance connection which could lead to poor inverter/
charger performance, and may melt the cable and terminal connections.
Refer to Figures 2-7 and 2-8 to connect the DC cables and to stack the hardware correctly. Tighten
the terminal connections from 10 to 12 lbf-ft (13.6 to 16.3 N-m).
CAUTION: The DC terminal and Flange/Kep nuts are made of stainless steel which have
a high likelihood of seizure. To help prevent the bolt and nut from seizing—causing the
bolts to strip or snap/break off—the use of anti-seize lubricant is highly recommended.
Info: If antioxidant grease or spray is used, apply it after all the connections have been
made and are properly tightened.
Info: A 1/2-inch wrench or socket is used to tighten the 5/16 SAE Flange/Kep nuts.
Figure 2-7, Battery Hardware
Installation
Figure 2-8, Inverter DC Hardware
Installation
battery cable
(with ring lug)
nut
split washer
Battery
Temperature
Sensor
battery
post
CAUTION:
Ensure nothing is
placed between
the cable ring lug
and battery post.
5/16-18
Flange or
Kep nut
battery cable
(with ring lug)
Inverter DC terminal
(5/16–18 bolt,
5/8" usable length)
CAUTION:
Ensure nothing is
placed between the DC
terminal and ring lug.