Fronius IG Plus 3.0-1 User Manual

32
AC-side and
Grounding
Terminals
The terminals are designed for the following terminal connections:
Grounding Terminals:
(1) Grounding Electrode Terminal (GET)
A grounding electrode conductor may be required by the Authority
Having Jurisdiction (AHJ).
(2) Equipment grounding (e.g. grounding of the solar module frame)
The PV array (frame) ground should be connected to the Grounding
Terminal. The size for the conductor is usually based on the size of
the largest conductor in the DC system.
(3) Grid grounding / Grounding conductor
The Fronius IG Plus Inverter must be connected to the AC ground
from the utility via the Ground Terminal.
NOTE
- Use copper wire for all grounding wires.
- Use only solid or stranded wire. Do not use fine stranded
wire.
- For appropriate grounding see NEC Section 250.
AC-side Terminals:
L1 = Phase conductor L1
L2 = Phase conductor L2
L3 = Phase conductor L3
N = Neutral conductor N
NOTE
The neutral conductor is not bonded to ground internally.
N.C. = Not connected
max. wire cross section AWG 4
(1)
(2)
(3)
AC-side and Grounding Terminals
1-phase inverters 208 V / 240 V
1-phase inverters 277 V
3-phase inverters 208 V / 240 V / 277 V
L1
L2 N
N.C.
L1
N
L3
L1
L2
N
GET
GET
GET

Fronius IG Plus 3.0-1 Specifications

General

Protection class	IP 44
Max. output current	13 A
Nominal AC voltage	230 V
THD	< 3%
Max. DC voltage	500 V
Maximum Input Voltage	500 V
Number of MPP Trackers	1
Operating Temperature Range	-20°C to +55°C
Cooling	Convection
Warranty	5 years
AC nominal output	3000 W
Max. apparent AC power	3000 VA
AC voltage range	180 - 264 V