Xantrex Technology XW6048-120/240-60, XW4024-120/240-60, XW4548-120/240-60 manual Grounding

XW Solar Charge Controller Installation

Grounding

The XW Solar Charge Controller is designed to work only with negative-grounded electrical systems. Grounding for both PV and battery circuits is provided inside the wiring compartment. Each ground connection can accommodate up to #6 AWG wire size.

A fuse rated at 1 A, 600 V (accessible from inside the wiring compartment) grounds the negative conductor of the PV array and provides PV ground-fault protection (PV-GFP). Replace with Littelfuse KLKD 1 or equivalent.

Important: Only one Charge Controller is to have the PV-GFP fuse installed in installations with multiple parallel XW Series. Before mounting and connecting the XW Seriess, remove the PV-GFP fuse from each unit except one.

WARNING: Shock Hazard

Do not connect the battery negative to ground. NEC requirements specify that the battery negative ground must be done only through the 1A PV-GFP fuse. Bonding the battery negative to ground disables PV ground-fault protection. The battery compartment must only be grounded if it is metal.

		WARNING: Fire Hazard
		Ensure there is no other ground connection in the DC
		wiring or the PVGFP will be defeated and will not protect
		the array from ground fault conditions.
		xantrex
		This symbol identifies the
		protective conductor
Solar Charge Controller		(grounding) connection.
		Chassis ground terminals.
		The PVGFP fuse is located under the power
		connector circuit board
Figure 4-6	XW Solar Charge Controller Safety Ground Connector

WARNING: Shock Hazard

Disconnect PV and battery circuits before removing the grounding connection or before removing or installing the PV-GFP fuse.

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