Xantrex Technology 1000i, 1800i owner manual Battery Connections

Xantrex, in researching the requirements for inverter use in different markets, provides the following table that outlines the minimum DC cable size and maximum fuse/breaker size allowed by different regulatory bodies in the U.S. There may be other codes and regulations applicable to your installation:

	Marine			RV			Residential
	Installation			Installation			Installation
	(1)			(2)			(3)
Model	Wire		Fuse	Wire		Fuse	Wire		Fuse
	AWG		(A)	AWG		(A)	AWG		(A)
1000 12 V	#4	175		#4	150		#1	150
1000i 12 V
1000 24 V	#8	90		#8	90		#6	70
1000i 24 V
1800 12 V	#1	300		#1	225		4/0	250
1800i 12 V
1800 24 V	#6	100		#4	150		#2	125
1800i 24 V

1Based on ABYC Recommended Practice E-9, 75°C wire

2Based on NFPA 70, Article 551, 90°C wire

3Based on NFPA 70, Article 240 and 310, 75°C wire

Table 4. DC wire sizes and inline fuse requirements

CAUTION

Clean battery terminals before making connections. Wear eye protection to keep corrosion from coming in contact with eyes.

To make DC wiring connections:

1.Before making any connections, route the positive and negative battery cables directly to the DC connection terminals on the Prosine Inverter. Slide the plastic terminal connector covers (boots) over the positive and negative cables (the red boot slides on the positive cable and the black boot slides on the negative cable). Do not route the cables through an electrical distribution panel, battery isolator, or other device that will add additional voltage drops

except for the required fuse or breaker on the positive battery terminal. Install the inverter so that the battery wire length is as short as possible. The connectors on the Prosine Inverter are designed to fit up to 250 MCM crimp-on ring terminals (either AMP or ILSCO) or box connectors (these tighten on connected cable using a set screw). Note, the coloured terminal covers (boots) fit much better with crimp-on ring terminals, and these are recommended over the box connectors.

2.Neatly cut the cables to the correct length and strip enough insulation to properly install the ring terminals or connectors. Attach the terminals to both cables using the crimp tool recommended by the manufacturer of the ring terminals. There must be no stray wire strands protruding from the terminal. Connect the terminal on the positive cable to the positive battery connector (stud) on the inverter and tighten with a wrench to a torque of 9–10 ft-lbs (11.7–13 Nm). Test that the cable is secure and is connected to the correct positive terminal.

3.An inline fuse between the Prosine Inverter and the battery is required by regulations for all installations. Again, refer to Table 4 for examples of correct fuse sizing for some regulations. This fuse protects your battery and wiring in case of an accidental short circuit during installation of the inverter or later damage to the wiring. The fuse and fuse holder need to be installed in the positive side of the DC circuit, as close as possible to the batteries and within the distance specified by the applicable installation code. Ensure all other power and ground connections have been made to the Prosine Inverter before connecting the DC cables to the batteries.

4.Connect the cable from the POSITIVE connector on the Prosine Inverter to the POSITIVE (POS +) terminal on the fuseholder. Observe the polarities carefully while performing the installation and do not reverse the polarities. Route both cables before making any connections.

Figure 4. Battery Connections

CAUTION

An inadvertent reverse polarity connection may cause damage to the Prosine Inverter and it will require servicing (internal fuse will open). Before making the final DC connection, observe polarities to ensure that the wiring is correct.

5.Connect the DC NEGATIVE cable to the NEGATIVE (NEG -) terminal on the battery. Next, connect the cable to the negative terminal on the inverter. The connection to the negative terminal of the Prosine Inverter should be the last connection made. A spark when making this final connection is normal.

WARNING

Make sure all the DC connections are tight (torque to 9–10 ft-lbs, 11.7–13Nm). Loose connections will overheat and could result in a potential fire hazard.

6.For residential installations, a DC wiring enclosure is required to cover the DC connections. Contact Xantrex or your distributor for this part. For non- residential installations, slide the rubber terminal boot covers up the cable and over the terminal connections.

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Xantrex Prosine Inverter Owner’s Manual