Installation Manual and Specifications

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Wiring

900-0123-01-01 Rev A

AC Wiring

WARN

ING: Shock Hazard

Ensure all circuit breakers or disconnect devices are turned off or disconnected

before wiring. Make certain the inverter and other active devices are turned off or

disabled before wiring.

Split-Phase Wiring

The GSLC can have multiple terminal bus bars for multiple AC connections. Because the

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

up to three TBB sets are available. Each set of bus bars is paired in red and black, for the

120/240 Vac connections required by the Radian inverter.

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

TBB set is f

or utility grid connections and the right TBB set is for a generator. The

preassembled GSLC models follow this convention.

Each TBB accepts conductors from 1/0 (70 mm

) to #14 AWG (2.5 mm

). 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

AC Terminal Bus Bars (split-phase)

To make the external AC connections

to the split-phase GSLC:

1. Connect the L1 wire from the AC load

panel to black TBB 1 (AC OUT - HOT L1).

Connect the L2 wire from the AC load

panel to red TBB 2 (A

C OUT - HOT L2).

2. Connect the neutral wire from the AC load

panel to neutral TBB 3.

3. Connect the L1 wire from the utility grid

panel (if present) to black TBB 4

RID IN - HOT L1). Connect the L2 wire

from the utility grid panel to red TBB 5

(GRID IN - HOT L2).

4. Connect the neutral wire from the utility grid

panel (if present) to neutral TBB 3.

5. Connect the L1 wire from the generator

(if present) to black TBB 6 (G

EN IN - HOT

L1). Connect the L2 w

ire from the generator

to red TBB 7 (GEN IN - HOT L2).

6. Connect the neutral wire from the generator

(if present) to neutral TBB 3.

NOTE: Remove the neutral-ground bond if

necessary. See page 34.

AC Output Grid

Generato

Neutral