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46
Freedom SW 230V Installation Guide
Stacking Features
DC Connections for Stacked Inverters
Individual overcurrent devices are to be used between the
battery positive and each inverter. Keep cable lengths to the
two inverter/chargers the same in order to balance cable
losses. If not, the battery cable difference in length between
the two inverter/chargers should not exceed 30 cm.
Connect the stacked system as follows:
1. Connect each negative terminal to the battery.
2. Connect a earth (ground) wire to the common negative.
3. Connect each positive terminal of the inverter to the
battery through a DC disconnect in each positive line. Do
not tie the positives together between inverters.
4. Connect the earth (ground) bonding wire from each
inverter to the same location on the vehicle chassis. Use
that same length and gauge wire for both inverter/
chargers.
5. Connect the battery temperature sensors (BTS), if needed.
Figure 17
Connecting Battery Cables and DC Earth/Ground Wires
Battery
Negative
Battery
Positive
Battery
Negative
Battery
Positive
Earth/
Ground
1
2
3
4
5
Two Freedom SW
3524-230 units
shown.
FSW 230V Installation Guide.book Page 46 Tuesday, August 7, 2018 9:18 AM