Permitted Cables - Fronius 1.5-1 Installation Instructions Manual

Danger due to improperly connected terminals.
This can result in thermal damage to the inverter, which can lead to fires.
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Fire hazard due to incorrectly designed AC fuse.
This can result in thermal damage to the inverter, which can lead to fires.
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NOTE!
When connecting aluminum cables:
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NOTE!
Form a min. 4 in. (100 mm) cable loop with all cables.
NOTE!
To enable trouble-free operation of the inverter:
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Permitted cables

Cables with the following design can be connected to the AC and DC terminals
of the inverter:
26
CAUTION!
When connecting the AC and DC cables, make sure that all terminals are
tightened securely using the proper torque.
CAUTION!
Only connect to a circuit provided with branch circuit overcurrent protection
in accordance with the National Electrical Code, ANSI / NFPA 70.
Observe maximum values for branch circuit overcurrent protection.
Follow all national and international guidelines regarding the connection of
aluminum cables.
Follow the instructions of the cable manufacturer, especially the note about
whether an annual check to ensure that the cables are firmly attached
should be performed.
Make sure that the grid's neutral conductor is grounded. For insulated net-
works (without grounding), this is not the case, and operation of the inverter
is not possible.
A neutral conductor is required for measurement purposes when operating
the inverter. The neutral conductor must have a current carrying capacity of
at least 1 A.
- Copper or aluminum: round, solid
- Copper: round, fine-stranded, up to conductor class 4
Cable cross-sections:
Cu: min. AWG 14 – max. AWG 6
Al: AWG 6
Tightening torque of the terminals:
16 lbf.in / 1.33 t. lb. /1.8 Nm