35
Recommenda-
tion for the
AC-side over
current pro-
tection
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:
Fronius IG Plus
Over Current Protection
208 V
240 V
277 V
3.0-1
20 A
20 A
15 A
3.8-1
25 A
20 A
20 A
5.0-1
30 A
30 A
25 A
6.0-1
40 A
35 A
30 A
7.5-1
45 A
40 A
35 A
10.0-1
60 A
60 A
45 A
11.4-1
70 A
60 A
60 A
11.4-3
40 A
35 A
-
12.0-3
-
-
20 A
Connecting
Grounding
Electrode Wire
If the photovoltaic system requires a grounding electrode, it should be
connected as follows:
NOTE
Form a min. 4 in. wire loop with the wire.
Tightening torque:
stranded wires ................ 1.25 ft. lb.
solid wires ...................... 0.81 ft. lb.
1
1
2
2
4
3
1
1/2 in.
2
Depending on the installation, an additional external AC and/or DC dis-
connect may be required if the inverter is installed in a location not easily
accessible to utility or fire personnel. Consult local authorities for additio-
nal information.
Additional
External AC
and/or DC
Disconnect
Summary of Contents for IG Plus 12.0-3
Page 2: ......
Page 4: ...ud_fr_st_et_01382 012008...
Page 6: ......
Page 16: ...6...
Page 17: ...7 General Information...
Page 18: ...8...
Page 24: ...14...
Page 25: ...15 Installation and Startup...
Page 26: ...16...
Page 80: ...70...
Page 81: ...71 Operation...
Page 82: ...72...
Page 122: ...112...
Page 123: ...113 Troubleshooting and Maintenance...
Page 124: ...114...
Page 149: ...139 Appendix...
Page 150: ...140...
