Xantrex Technology PV100S-480 installation manual Wire Gauge and Torque Requirements, Grounding

Installation

Wire Gauge and Torque Requirements

Table 3-1 provides acceptable wire gauges, bolt sizes, and torque values for AC terminal connections.

Table 3-1AC Terminal Wire Gauge, Bolt Size, and Torque Values

AC Terminal	Acceptable Wire Size	Bolt (Hardware) Size		Torque Requirements
Connections	Range (both models)	PV100S-208	PV100S-480	PV100S-208	PV100S-480
TB1	500MCM to #4 AWG	3/8-16	3/8-16	420 in-lb	420 in-lb
(Chassis Ground)	(1 stud per pole)			(47.5 Nm)	(47.5 Nm)
TB2	500MCM to #4 AWG	3/8-16	3/8-16	420 in-lb	420 in-lb
(System Ground)	(1 stud per pole)			(47.5 Nm)	(47.5 Nm)
TB6 (Neutral)	500MCM to #4 AWG	3/8-16	3/8-16	228 in-lb	228 in-lb
	(1 stud per pole)			(25.7 Nm)	(25.7 Nm)
S1-2T1, S1-4T2,	350MCM to #6 AWG	M10 (See Caution	M8 (See Caution	310 in-lb	115 in-lb
S1-6T3	(1 stud per pole)	on page 3–17)	on page 3–17)	(35.0 Nm)	(13.0 Nm)
T6-X1, T6-X2,	350MCM to #6 AWG	3/8-16	3/8-16	420 in-lb	420 in-lb
T6-X3	(1 stud per pole)			(47.5 Nm)	(47.5 Nm)
TB4-A, TB4-B,	350MCM to #4 AWG	5/16 Hex	5/16 Hex	275 in-lb	275 in-lb
TB4-C	(2 openings per pole)			(31 Nm)	(31 Nm)

Table 3-2 provides acceptable wire gauges, bolt sizes, and torque values to be connected to the PV100S DC terminal connections.

Table 3-2DC Terminal Wire Gauge, Bolt Size, and Torque Values

DC Terminal	Acceptable Wire Size	Bolt (Hardware) Size		Torque Requirements
Connections	Range (both models)	PV100S-208	PV100S-480	PV100S-208	PV100S-480
TB3-1, TB3-2,	500MCM to #4 AWG	7/16 Hex	7/16 Hex	500 in-lb	500 in-lb
TB3-3	(2 openings per pole)			(56.5 Nm)	(56.5 Nm)

Grounding

System Grounding	Install a copper ground rod within three feet of the PV100S enclosures per the
	National Electric Code ANSI/NFPA 70. The single-point ground for the system is
	to be made at the AC ground bar (TB2) in the AC Interface Enclosure.

AC Interface Enclosure

AC Ground Bar (TB2) to be used for the Single Point Ground

Figure 3-10Single-point Ground (TB2) Ground Bar

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