Connection To The Battery - Victron energy Phoenix VE.Direct 12/250 Manual

3.2 Connection to the battery

In order to utilize the full capacity of the product, batteries with sufficient capacity and battery
cables with sufficient cross section should be used. See table:
Minimum battery cap.
Internal DC fuse
Fuse type (Mfr.:
Littelfuse)
Fuse replaceble
Recommended DC cable cross-section (mm
0 – 1,5 m
1,5 – 3 m
Minimum battery cap.
Internal DC fuse
Fuse type (Mfr.:
Littelfuse)
Fuse replaceble
Recommended DC cable cross-section (mm
0 – 1,5 m
1,5 -3 m
Minimum battery cap.
Internal DC fuse
Fuse type (Mfr.:
Littelfuse)
Fuse replaceble
0 – 1,5 m
1,5 -3 m
The inverters are fitted with an internal DC fuse (see table above for rating). If the DC cable length
is increased to more than 1,5m, an additional fuse or DC circuit breaker must be inserted close to
the battery.
Reverse polarity connection of the battery wires will blow the internal fuse and can damage the
inverter. The internal fuse is not always replaceble (see table above).
3.3 Wire size for connecting the inverter chassis to ground
The earth conductor from the earth lug on the chassis to ground should have at least half the
cross-section of the conductors used for the battery connection: see Appendix B.
3.4 Connection to the load
Never connect the output of the inverter to another AC source, such as a household AC wall outlet
or a generator.
3.5 Connecting the inverter neutral output to the chassis/ground
The AC output is isolated from the DC input and the chassis. Local regulations may require a true
neutral. In this case one of the AC output wires must be connected to the chassis, and the chassis
must be connected to a reliable ground: see appendix A.
4
12/250 24/250
30 Ah 20 Ah
2 x 30A 30A
ATOF ATOF
32V 32V
no no
2 )
4 mm² 2,5 mm²
6 mm² 4 mm²
12/500 24/500
60 Ah 40Ah
3 x 35A 2 x 25A
ATOF ATOF
32V 32V
no no
2 )
6 mm² 6 mm²
10 mm² 10 mm²
12/1200 24/1200
150 Ah 60Ah
200A 100A
MIDI MIDI
32V 32V
yes yes
25 mm² 10 mm²
35 mm² 16 mm²
48/250 12/375
10 Ah 40 Ah
25A 2 x 40A
FKS ATOF
80V 32V
no no
1,5 mm² 6 mm²
2,5 mm² 10 mm²
48/500 12/800
20 Ah 100 Ah
30A 125A
FKS MIDI
80V 32V
no yes
4 mm² 16 mm²
6 mm² 25 mm²
48/1200
30 Ah
50A
MIDI
58V
yes
6 mm²
10 mm²
24/375 48/375
30 Ah 15 Ah
40A 25A
ATOF FKS
32V 80V
no no
4 mm² 2,5 mm²
6 mm² 4 mm²
24/800 48/800
50 Ah 30 Ah
2 x 40A 2 x 20A
ATOF FKS
32V 80V
no no
6 mm² 4 mm²
10 mm² 6 mm²