Installation Manual

© 2015 Sensata Technologies
Page 15
Installation
Table 2-2, DC Wire Size For Increased Distance (in free air)
Minimum Recommended DC Wire Size (one way)*
5 feet or less 5 to 10 feet 10 to 15 feet
ME2000
#2/0 AWG
(67.4 mm
2
)
#4/0 AWG
(107.16 mm
2
)
#4/0 AWG
(107.16 mm
2
) x2
ME2012
#2/0 AWG
(67.4 mm
2
)
#4/0 AWG
(107.16 mm
2
)
#4/0 AWG
(107.16 mm
2
) x2
ME2512
#4/0 AWG
(107.16 mm
2
)
#4/0 AWG
(107.16 mm
2
) x2
not recommended
ME3112
#4/0 AWG
(107.16 mm
2
)
#4/0 AWG
(107.16 mm
2
) x2
not recommended
* 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 2-6 and 2-7 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.
battery cable
(with ring lug)
nut
split
washer
Battery
Temperature
Sensor
battery
post
CAUTION :
Ensure nothing is
placed between
the cable ring lug
and the 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 the ring lug.
Figure 2-6, Battery Hardware
Installation
Figure 2-7, Inverter DC Hardware
Installation