Dc Cable Connections; Figure 2-5, Battery Hardware Installation; Figure 2-6, Inverter Dc Hardware Installation; Table 2-2, Dc Wire Size For Increased Distance (In Free Air) - Magnum Energy ME3112-U Owner's Manual

Modifi ed sine wave inverter/chargers
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Installation

Table 2-2, DC Wire Size For Increased Distance (in free air)

ME2012
ME2512
ME3112
* 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 DC cable ring lug and the battery terminal post or the fl at metal
part of the inverter's DC terminal. When connecting the DC cable to the battery or inverter DC
terminals, the cable should be placed directly against the inverter or battery terminals. 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 2-5 and 2-6 to connect the DC cables and 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 Kep nuts are made of stainless steel, which has 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: A 1/2-inch wrench or socket is used to tighten the 5/16 SAE Kep nuts. If antioxidant
grease or spray is used, apply it after all the connections have been made and are
properly tightened.
nut
split
washer
battery cable
(with ring lug)
CAUTION :
Ensure nothing is
placed between
the cable ring lug
and the battery post.
battery
Figure 2-5, Battery Hardware
Installation
Page 14
Minimum Recommended DC Wire Size (one way)*
5 feet or less
#2/0 AWG
(67.4 mm
)
2
#4/0 AWG
(107.16 mm
)
2
#4/0 AWG
(107.16 mm
)
2
Battery
Temperature
Sensor
post
5 to 10 feet
#4/0 AWG
(107.16 mm
)
(107.16 mm
2
#4/0 AWG
not recommended
(107.16 mm
) x2
2
#4/0 AWG
not recommended
(107.16 mm
) x2
2
Inverter DC terminal
(5/16 -18" bolt,
5/8" usable length)
battery cable
(with ring lug)
Figure 2-6, Inverter DC Hardware
Installation
© 2017 Sensata Technologies
10 to 15 feet
#4/0 AWG
) x2
2
CAUTION :
Ensure nothing is
placed between
the DC terminal
and the ring lug.
5/16-18"
Flange or
Kep nut

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