Pv Wiring Connection; Battery Wiring Connection - Goodwe ET Series User Manual

Installation Instructions

2.4.2 PV Wiring Connection

Before connecting PV panels/strings to the inverter, please make sure all requirements listed
below are followed:
• The total short-circuit current of a PV string must not exceed the inverter's max DC current.
(For models GW8KL-ET and GW10KL-ET, PV2 has 2 pairs of PV connectors which can accept 2PV
strings with a total short-circuit current of no more than 22A)
• The minimum impedance to earth of the PV module shall be greater than R. R=Max.Input
Voltage (V)/30mA, i.e. R=1100V/30mA=36.7KΩ or R=1000V/30mA=33.4KΩ).
• The PV string must not be connected to the earth/grounding conductor.
• Use the right PV plugs in the accessory box. (BAT plugs are similar to PV plugs. Please check
before using them.)
Note: There are MC4, QC4.10, or Amphenol plugs in the accessory box. The connection details are shown
below.
1
Prepare the PV cables and PV plugs.
2.5-4mm
2
2.5-4mm
2
Note:
1. Please use the PV plugs and connectors from the
accessory box.
2. The PV cable should be a standard 2.5–4mm2.
3
Screw the cap on and plug it into the inverter side.
Note: There will be a clicking sound if the connectors are
inserted correctly into the PV plugs.
The polarity of the PV strings must not be connected in a reverse manner. Otherwise, the
inverter could be damaged.
For the GW8KL-ET and GW10KL-ET models, use two separate PV plugs if the short-circuit
current of the PV array connected to inverter's PV2 input is greater than 15A.

2.4.3 Battery Wiring Connection

Please be careful of any electric shock or chemical hazards. For batteries without a built-in DC
breaker, make sure that an external DC breaker (≥40A) connected.
Make sure the battery is under normal working condition (such as battery voltage and BMS
setting etc.) when the inverter and battery is to be used. If you need to use the hybrid inverter
as a Grid-tied inverter, please contact GoodWe after-sales.
2
Connect the PV cable to the PV
connectors.
MC4 /QC4.10 Series
7mm
7mm
Note:
1. Crimp the PV cable tightly onto the connectors.
2. For Amphenol connectors, the limit buckle cannot be
pressed.
3. There will be a clicking sound if the connectors are
inserted correctly into the PV plugs.
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User Manual V1.2-2022-03-30
AMPHENOL Series