Installation

Wiring for On-Grid Applications Using an AC Distribution Panel and an Internal Generator Disconnect Breaker

The following diagram shows the complete wiring diagram for wiring the ACCB and Sine Wave Plus Inverter inputs and outputs in an on-grid application using an AC distribution panel for the outputs and a 120 Vac generator for input. This diagram also uses an internal generator disconnect breaker in the ACCB. Wiring instructions are provided for making ground connections first (page 1–31), neutral connections second (page 1–32), and hot connections last (page 1–33).

120/240V AC Panel

LEGEND

L1

L2

Ground

 

 

 

 

Neutral

NEUTRAL

 

HOT (Owner supplied)

 

 

HOT (Factory installed)

 

 

120V AC Generator

Neutral to

 

HOT NEU GND

Ground

 

 

Bond

GROUND

 

 

 

 

AC Distribution Panel

 

(120 Vac Only)

 

To Primary

NEUTRAL

HOT

System

 

Ground

 

 

D D

D

AC

 

 

AC

NEU

 

IN

OUT

 

Sine Wave Plus Inverter / Charger

AC TERMINAL

BLOCK

AC1 GRID

AC2 GEN

NEU 1 NEU 2 NEU OUT

INV OUT

AC Load

GROUND

Figure 1-26Wiring an On-grid Application USING an AC Distribution Panel

WARNING: Shock Hazard

Ensure that all AC and DC power is not “live” before proceeding.

Important: The inverter bypass circuit breaker can only be wired directly to, and work with, a single AC source. In a system that has multiple AC sources, you must decide which AC source will be wired through the inverter bypass circuit breaker and which will not. The following illustrations assume that the primary AC input source will be the utility grid.

1–30

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