Installation Manual

Wiring a Balanced Three-Phase System
975-0239-01-01 Rev J 3–59
This manual is for use by qualified personnel only
DC Positive Bus Bar installation
1. Remove the existing bus bar from the bottom terminal of the GJ250A 160
VDC, 3/8" stud DC disconnect/breaker (pre-installed in the PDP).
2. Install a second and third GJ250A - DC rated breaker (included with each
Conext XW+ Connection Kit for INV2 INV3 PDP) next to the
existing DC
disconnect/breaker.
3. Install the DC positive bus bar included with the Conext XW+ Connection Kit
for INV2 INV3 PDP. (This DC positive bus bar supports up to three GJ250A -
DC rated breakers.)
4. Remove the appropriate knockout from the Conext XW+ Power Distribution
Panel lower faceplate.
DC Wiring for a Balanced Three-Phase System
1. Using the instructions provided in “Making DC Connections” on page 3–11,
make DC connections from the Conext XW+ Power Distribution Panel to:
a) the first Conext XW+ Inverter/Charger (INV1) and
b) the battery bank.
2. Connect the positive battery cable for INV2 (included with the Conext XW+
Connection Kit for INV2 INV3 PDP) to the top terminal on the second DC
disconnect/breaker.
3. Connect the negative battery cable for INV2 (included with the Conext XW+
Connection Kit for INV2 INV3 PDP) to the DC Negative Bus.
4. Connect the positive battery cable to the positive terminal on the second
Conext XW+ (INV2) and the negative battery cable to the negative terminal
on INV2.
5. Connect the positive battery cable for INV3 (included with the Conext XW+
Connection Kit for INV2 INV3 PDP) to the top terminal on the third DC
disconnect/breaker.
6. Connect the negative battery cable for INV3 (included with the Conext XW+
Connection Kit for INV2 INV3 PDP) to the DC Negative Bus.
7. Connect the positive battery cable to the positive terminal on INV3 and the
negative battery cable to the negative terminal on INV3.
Note: Replace faceplates after AC and DC wiring is complete.
Note: One pair of battery cables is included with each Conext XW+ Connection
Kit for INV2 INV3 PDP and Conext XW+ Power Distribution Panel.
Note: Before connecting the DC cables from the PDP to the battery, perform the
procedures in “AC Wiring for a Three-Phase System” on page 3–62.
XW-NA-Install.book Page 59 Wednesday, August 12, 2015 2:23 PM