Connecting Grounding Electrode Wire; Recommendation For The Ac-Side Over Current Protection; Additional External Ac And/Or Dc Disconnect - Fronius IG Plus 3.0-1 Operating Instructions Manual

Connecting If the photovoltaic system requires a grounding electrode, it should be
Grounding connected as follows:
Electrode Wire
Recommenda-
tion for the
AC-side over
current pro-
tection
Fronius IG Plus
3.0-1
3.8-1
5.0-1
6.0-1
7.5-1
10.0-1
11.4-1
11.4-3
12.0-3
Additional Depending on the installation, an additional external AC and/or DC dis-
External AC connect may be required if the inverter is installed in a location not easily
and/or DC accessible to utility or fire personnel. Consult local authorities for additio-
Disconnect nal information.
1
1
NOTE
Form a min. 4 in. wire loop with the wire.
NOTE To reduce the risk of fire, connect only to a circuit provi-
ded with branch circuit overcurrent protection in accordance with
the National Electrical Code, ANSI / NFPA 70, at a MAXIMUM of:
208 V
20 A
25 A
30 A
40 A
45 A
60 A
70 A
40 A
-
2
2
1
Tightening torque:
stranded wires ................ 1.25 ft. lb.
solid wires ...................... 0.81 ft. lb.
Over Current Protection
240 V
20 A
20 A
30 A
35 A
40 A
60 A
60 A
35 A
-
35
4
3
277 V
15 A
20 A
25 A
30 A
35 A
45 A
60 A
-
20 A