Installation Manual and Specifications

Wiring

900-0123-01-01 Rev A

Single-Phase Wiring

The GSLC allows multiple terminal bus bars (TBB) for multiple AC connections. Because the

Radian inverter possesses two sets of AC input connections and one set of output connections,

three terminal bus bars are available for hot connections, as well as one neutral bus bar. The

hot bus bars use brown insulators in 230 Vac models. The neutral bus bar uses blue insulators

in 230 Vac models.

The TBB on the left is generally used for the inverter’s AC output connections. The central TBB

is for utility grid connections and the right TBB is for a generator. The preassembled GSLC

models follow this convention.

Each TBB accepts conductors from 70 mm

(1/0 AWG) to 2.5 mm

(#14 AWG). See Table 2

on page 33 for required torque values.

If steps are inappropriate for a given system (such as instructions for a generator when none is

present), they can be ignored.

Figure 35 AC Terminal Bus Bars (single-phase)

AC Output

Grid

Generato

Neutral

To make external AC connections to

the single-phase GSLC:

1. Connect the hot wire from the AC load

panel to brown TBB 1 (AC Output).

2. Connect the neutral wire from the AC

load panel to neutral TBB 2.

3. Connect the hot wire from the utility grid

panel (if present) to brown TBB 3 (Grid).

4. Connect the neutral wire from the utility

grid panel (if present) to neutral TBB 2.

5. Connect the hot wire from the generator

(if present) to brown TBB 4 (Generator).

6. Connect the neutral wire from the

generator (if present) to neutral TBB 2.

NOTE: Remove the neutral-ground bond

if necessary. See page 34.

The neutral insulator in Figure 35 is in the

position which opens the bond.