Hybrid/AC-coupled Inverter User Manual
© 2024 Hoymiles Power Electronics Inc. All rights reserved.
27
3.4.3 PV Wiring Connection (only for HYT series inverters)
Before connecting the PV, please make sure all requirements listed below are
followed.
• The voltage, current, and power ratings of the panels to be connected are
within the allowable range of the inverter. Ensure the polarity is correct, and
please refer to the technical parameters in Chapter 5 for voltage and current
limits.
• Since the inverter is a transformer-less structure, please do not ground the
outputs of PV panels.
• If the inverter is integrated with a PV switch, please make sure it is in the
“OFF” position. Otherwise please use an external PV switch to cut off the PV
connection during wiring and when necessary.
• Use the PV connectors in the accessory box for PV connections. Damage to
the device due to the use of an incompatible terminal shall not be covered
by the warranty.
• Please make sure the connectors are correct, not the battery connectors, as
they look similar.
Procedure
Step 1
• Unscrew the PV connector
counterclockwise.
• Remove the insulator.
• Remove the inner cable gland.
2 3
PV+
PV-
1
1
Step 2
• Strip the insulation from each DC cable
by 7-8 mm.
• The conductor cross-sectional area: 2.5-4
mm².
• Assemble cable ends with crimp contacts
by PV terminal crimping tool.
2
: 4-5 mm
2.5 mm²
S 4 mm²
S
7-8 mm
Step 3
• Lead the cable through the cable gland.
• Insert the crimp contact into the
insulator until it snaps into place.
• Gently pull the cable backward to ensure
a firm connection.
• Tighten the cable gland and the
insulator.
3
3
2
1
PV+
PV-
4
Step 4
• Check the cable connection of the PV
string for polarity correctness and
ensure that the open-circuit voltage in
any case does not exceed the inverter
input limit of 1,000 V.
• Connect the PV connectors to the
inverter. There should be a “click” sound
if they are plugged in correctly.
4
Click
NOTICE
WARNING
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