© 2017 Sensata Technologies
16
Installation
Table 2-1, Wire/Overcurrent Device
Note
1
– Based on the inverter’s continuous power rating at the lowest
input voltage with an inverter ineffi ciency factored in.
Note
2
– Per the NEC, the DC grounding electrode conductor can be a #6
AWG
(13.3 mm²)
conductor if that is the only connection to the grounding
electrode and that grounding electrode is a pipe, rod, or plate electrode.
Note
3
– Copper wire rated with 75
°
C (167
°
F) insulation at an ambient
temperature of 30
°
C (86
°
F), with a multiple cable fi ll factor (0.8) de-
rating (if needed).
Note
4
– The next larger standard size overcurrent device may be used
if the de-rated cable ampacity falls between the standard overcurrent
devices found in the NEC.
Inverter Model
MMS1012
MMS1012-G
Maximum Continuous
Current
1
133 amps
133 amps
DC Grounding Electrode
Wire Size
2
#6 AWG
(13.3 mm²)
#6 AWG
(13.3 mm²)
Minimum DC Wire Size
3
(75˚C rating in free air)
#2 AWG
(33.6 mm²)
[170 amps]
#2 AWG
(33.6 mm²
[170 amps]
Maximum DC Fuse Size
4
150 amps with
time delay
150 amps with
time delay
Increased
size for
longer
distance
5 ft (1.5 m)
or less =
#2 AWG
(33.6 mm²)
#2 AWG
(33.6 mm²)
5 to 10 ft
(1.5 to 3.0 m) =
#2 AWG
(33.6 mm²)
#2 AWG
(33.6 mm²)
10 to 15 ft
(3.0 to 4.6m) =
#1 AWG
(42.4 mm²)
#1 AWG
(42.4 mm²)
