SolaX Power X1-Fit-3.7E Quick Installation Manual

Quick Installation Guide
X1-Retro Fit 3.7KW-5.0KW

Packing List

Inverter x1 Bracket x1
Version I Version E&C
Ring terminal (external) x1
Ring terminal (internal) x1
AC terminal x8 * Gasket x1
Meter x1
Quick installation guide x1 Wifi module(optional) x1
AC terminal x8 *: 4 6AWG AC terminals and 4 10AWG AC terminals for Version I
4 10AWG AC terminals and 4 8AWG AC terminals for Version E and Version C
EPS Connection(for I version and E version )
I
EPS wiring diagram
I Version inverter:
EPS
function
can
be
only
be
achieved
automatically.
Do not required for Changeover Switch.
I Version Auto Do not required for Changeover Switch
wired by manufactor
I Version
required for installation
RCMB
+
Battery
-
L I I L
EPS AC
EPS breaker: ≥32A
RCD: type A RCD
RCD
L
EPS Load Load
E Version inverter:
EPS
function
can
be
achieved manually or automatically.
E Version Manual Required for Changeover Switch
E Version wired by manufactor
RCMB
+
Battery
-
L
PE L
EPS AC
EPS breaker: ≥32A
changeover device( DPDT )
RCD
Load
RCD: type A RCD
L
EPS Load
E Version Auto Required for Changeover Switch
E Version wired by manufactor
required for installation
RCMB
+
Battery
-
L PE L
EPS AC
EPS breaker: ≥32A
Contactor Device
Contactor
RCD
Load
RCD: type A RCD
L
EPS Load
Please contact our sales for any compatible contactor purchase requirement .
Expansion tubes x4 Battery connectors
Expansion screws x4 (positive x1, negative x1)
Grounding nut x1
User manual x1
Set screw(for mounting) x1
Warranty card x1
Smart Plug(optional) x1
EPS connection steps:
1. Make wires(EPS cable size: refer to the table below)
12mm
60mm
I Version
12mm
L
N
PE
60mm
N-BAR
E-BAR
E Version
X1-Fit-3.7E X1-Fit-4.6E
Model X1-Fit-3.7I X1-Fit-4.6I
X1-Fit-3.7C X1-Fit-4.6C
EPS Cable ≥5mm² ≥5mm²
EPS breaker 25A 32A
table. Cable and Micro-breaker recommended
required for installation
2. Insert EPS cable into EPS port through screw cap.
L
N
PE
E-BAR
I Version
L
N
Note: The black cable( the I
Note: Connect
PE
wire into
PE
port ) has been wired
during the manufactory.
E-BAR
-
Mark position of four holes.
-
Drill holes with φ10 drill. Depth: at least 60mm.
-
Tighten the expansion tubes. Screw the expansion screws.
375.0
mm
- Screw the set screw on the left-bottom
of inverter tightly.
AC connection
steps(AC cable size:
refer to table1&table2):
1.Remove the
top-down cover.
3.
Insert AC cable into AC port
through screw cap.

Model
Cable
Micro-breaker
Model
Cable
Micro-breaker
Battery connection diagram
ON
+ +
OFF
PV1 PV2 BAT
- -
current of Nonpolarized
breaker>32A

DC breaker
Power connection
high-voltage lithium battery
X1-Fit-5.0E
X1-Fit-5.0I
X1-Fit-5.0C
≥5mm²
32A
A:Power Connection Steps:
B:Communication Connection Steps:
E Version
PE
port.
Step1: Disassemble the BMS/Meter
cable gland.

Mounting Steps

-
Match the inverter with the bracket.
- If necessary, costomer can install an
anti-theft lock on the left-bottom of
the inverter.

AC Connection

12mm
60mm
2. Make AC wires.
4. Connect the wire to the AC terminal in the inverter.

X1-Fit-3.7-E X1-Fit-4.6-E X1-Fit-5.0-E
X1-Fit-3.7-C X1-Fit-4.6-C X1-Fit-5.0-C
4-5mm² 5-6mm² 5-6mm²
20A 32A 32A
table1. E Version & C Version
X1-Fit-3.7-I X1-Fit-4.6-I X1-Fit-5.0-I
8-10mm² 10-13mm² 10-13mm²
50A 63A 63A
table2. I Version

Battery Connection

Battery breaker
Before connecting to battey, please install a nonpolarized DC breaker to make
+
sure inverter can be securely disconnected during maintanance.
-
Model
Voltage
Current[A]

Communication connection

BMS PIN De nition
Communication interface bewteen inverter and battery is RS485 or CAN
with a RJ45 connector.
+
CAN/ RS485
-
1
CAN
8 Rs485
When using RS485 protocol, please note that PIN2 must be disconnected.
Press down spring until it clicks audibly into place
wire strands
The ne wire strands must be seen in the champer
The seal is used for waterproof. Please
make sure it has been kept back.
Step2: Prepare a communication Step3:Assemble the cable gland and
cable(without sheath)and insert screw the cable nut.
the communication cable through
the cable nut.
-
Overview of Mounting
Note: No need to connect
wire on the X port by
enduser!
E Version
Note:
I
port has been
wired during the
manufactory.
I Version
a.
L-wire,N-wire connection
b.
PE wire connection
X1-Fit-3.7E X1-Fit-4.6E X1-Fit-5.0E
X1-Fit-3.7I X1-Fit-4.6I X1-Fit-5.0I
X1-Fit-3.7C X1-Fit-4.6C X1-Fit-5.0C
Nominal voltage of DC breaker should be larger than maximum
voltage of battery.
32A
6
PIN 1 2 3 4 5 7 8
Definition BMS_CANH BMS_CANL X
X GND X X X
Definition
X X X X X GND BMS_485A BMS_485B
Step4:
Insert one Rj45 side of the cable into
BMS port inside of inverter and the other
side into RS485 or Can port of the battery.