Hybrid Inverter User Manual
© 2022 Hoymiles Power Electronics Inc. All rights reserved.
18
3.3.4 AC Wiring Connection
3.3.4.1 Grid Connection
WARNING
Before connecting, please make sure all requirements listed below are followed.
• Use the Grid Connector from the accessory box. Damage to the device due
to the use of incompatible connector shall not be covered by the warranty.
• An independent three or four-pole circuit breaker must be installed on the
output side of the inverter to ensure safe disconnection from the grid.
• Multiple inverters cannot share one circuit breaker.
• Never connect a load between the inverter and the circuit breaker.
• Do not connect the AC circuit breaker until all inverter electrical connections
are completed.
Procedure
Step 1
• Thread the AC cable of appropriate length
through the waterproof terminal.
• Remove the cable jacket by 20-25 mm, and
strip the wire insulation by 7-8 mm.
• The conduct core-section: 4mm².
1
S=4mm²
7-8mm
20-25mm
Step 2
• Unscrew the Grid connector
counterclockwise.
• Disassemble the parts in sequence.
1
2
4
5
2
3
Step 3
• Press the connectors tightly on the cable
conductor core. Make sure the cable jacket is
not locked within the connector.
3
Step 4
• Fix all cables to the corresponding terminals
with a torque of 1.2 N•m, according
to markings on the connector with a
screwdriver. Make sure the L/N/PE are
correctly assembled.
• Assemble the parts in sequence.
6
1
4
5
3
2
4
M4
1.2 N·m
1
2
L
N
PE
Step 5
• Tighten the waterproof terminal clockwise
• Connect the grid connector to the inverter.
There should be a “click” sound, if it is
plugged in correctly.
Click
5
