Schneider Electric Xantrex XW Installationsanleitung PDF herunterladen (Seite 32)

Installation

2–14 975-0540-01-01 Revision B

This guide is for use by qualified personnel only.

To connect the charge controller in a positive-grounded or floating system:

◆ Follow the same steps as above for a negative-grounded charge controller,

except note the location of the PV array disconnect switch will vary as

follows:

• For positive-grounded systems, the PV array disconnect switch must be

in the negative conductor.

• For floating systems, the PV array disconnect switch must be a 2-pole

type connected in both the positive and negative conductors as per local

electrical code in the United States and Canada.

In general, the same rules apply for disconnect switches as for battery circuits:

they must be located in all ungrounded conductors. Requirements vary so

consult local code.

Connecting Multiple PV Array Strings to One Unit

The charge controller has two three-pole connectors, allowing up to three PV

array strings to be combined in the charge controller. Input connectors can

accept #6 to #14 AWG (13.5 to 2.5 mm

) solid or stranded wire.

WARNING

HAZARD OF FIRE

• Fuses are required when paralleling (combining) more than two PV strings.

• Fuses must be installed in a combiner or in a PV array disconnect switch.

• These items are not provided with the charge controller.

Failure to follow these instructions can result in death or serious injury.

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Schneider Electric Xantrex XW Installationsanleitung Seite 32