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

XW Solar Charge Controller Installation

Table 4-3	Recommended Circuit Breakers for the XW Solar Charge Controller
Xantrex Part
Number		Description
865-1065		Master Pack - Qty 6, Breaker 250A, 160 Vdc, Stud Terminal, Panel
		Mount, UL/CSA
865-1070		Master Pack - Qty 12, Breaker 80A, 125 Vdc, Panel Mount, UL/CSA
865-1075		Master Pack - Qty 48, Breaker 60A, 160 Vdc, Panel Mount, UL/CSA

Battery Circuit

The DC-rated fuse or circuit breaker between the battery and the XW Solar Charge Controller must have a maximum size of 1.25 × 60 A (the maximum current rating of the XW Solar Charge Controller). That is, the fuse or circuit breaker must be rated equal to or above 75 A.

	PV Circuit
	The DC-rated fuse or circuit breaker between the PV array and the XW Solar Charge
	Controller must be rated for the Isc of the array but will not exceed the 60 A rating.
Long-distance wire	If there is a significant distance between the PV array and the XW Solar Charge Controller
runs	or between the XW Solar Charge Controller and the battery, larger wires can be used to
	reduce the voltage drop and improve performance. Refer to Table 4-4 or Table 4-5.

	WARNING: Equipment damage
	Do not connect an array capable of delivering over 60 A Isc to the XW Solar Charge Controller.
	Wires larger than #6 AWG can be used only to reduce power loss in the wiring.
	To use a larger size wire, use a splicer block (terminal block) approved and rated for this
	application. This allows the larger cable size from the batteries to be “spliced” to the #6
	AWG wire connected to the XW Solar Charge Controller. The splicer block must be
	installed outside of the XW Solar Charge Controller wiring compartment.
	Follow manufacturer’s recommendations for torque and mounting. Splicer blocks and
	split-bolt kerneys are available from renewable energy suppliers.
	Important: Local and national electrical codes must be followed for determining additional
	installation requirements.
	Larger wire sizes may be used to improve performance, but may not be installed directly into this
	Charge Controller. Use a splicer block as previously described.
Maximum one-way	Refer to Table 4-4 or Table 4-5 and find the maximum current in the left column, and the
distance and wire	one-way distance from the PV array to the XW Solar Charge Controller (or the distance
size	from the XW Solar Charge Controller to the battery) on the same line, then read the wire
	size required at the top of the column.

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