Two Inverters, One AES Cabinet
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ELECTRIC SHOCK AND FIRE HAZARD Failure to follow these instructions may result in death or serious injury. |
CAB-106, CAB-160, and CAB-210 Configurations
When paired with two Solis S6-EH3P inverters, the AES Cabinet may limit the inverters to a maximum continuous output of 52/78/104 kW. Actual discharge performance depends on the inverter model’s battery-side power capacity, as shown below.
Full Load Duration
Inverter Model | Battery Discharge Limit | CAB-106 | CAB-160 | CAB-210 |
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S6-EH3P29.9K | 32.1 kW (×2 = 64 kW) | ~1½ hours | ~2¼ hours | ~3¼ hours |
S6-EH3P30K | 33 kW (×2 = 66 kW) | ~1½ hours | ~2¼ hours | ~3 hours |
S6-EH3P40K | 44 kW (×2 = 88 kW) | ~1¼ hours | ~1¾ hours | ~2¼ hours |
S6-EH3P50K | 55 kW (×2 = 104 kW) | ~1 hour | ~1½ hours | ~2 hours |
These autonomy estimates assume continuous full-power discharge and operation within safe continuous discharge parameters. Final performance should match the site's energy demand and load profile.
System Scalability – Two Inverters, One AES Cabinet
Two Solis S6-EH3P inverters are paired with one AES battery cabinet.
In this setup:
104/157/209 kWh of usable backup energy between two inverters
Discharge power is limited by the total inverter capacity or battery power limitation (max 52/78/104 kW)
On the backup side, up to six inverters can be connected in parallel, providing 192.6-300 kW of continuous backup power and approximately 312 / 471 / 636 kWh of total backup energy (3 × 104 kWh / 3 × 157 kWh / 3 × 209 kWh).
Grid-Tied (Non-Backup) Scalability
The number of inverters or batteries is unlimited for non-backup use. Each inverter runs independently, allowing systems to scale as large as needed for energy shifting, peak shaving, or other grid-interactive applications.
DC Battery Wiring – Two Inverters, One AES Cabinet
Each Solis S6-EH3P inverter has two battery input terminals, each rated up to 70 A.
The AES Cabinet connects using:
Two positive and two negative 25 mm2 (#4 AWG) conductors to each inverter.
Each conductor is protected by a 70 A fuse in the AES Cabinet’s built-in DC distribution box.
This setup ensures balanced current flow to each inverter’s internal DC/DC converter and supports up to 29.9-50 kW continuous charge/discharge, depending on the inverter model.
Always follow AS/NZS 3000 Wiring Rules and the local authority having jurisdiction for conductor sizing, 1,000 Vdc insulation rating, and proper torque values. Verify polarity before energising the system.
Communication – Two Inverters, One AES Cabinet
In a two-to-one configuration, a LYNK II Gateway is required for each inverter to enable real-time, managed (closed-loop) control. The AES Cabinet communicates with one Solis inverter through one LYNK II Gateway (may be included with the battery cabinet), and with a second Solis inverter through a second LYNK II Gateway.
Connect one cable from LYNK II #1 CAN port to the Solis inverter #1’s BMS port. Connect a second cable from LYNK II #1’s LYNK port to the J3 port on the AES Cabinet’s High Voltage Box. On most AES Cabinets, a CAT6 cable is already connected to the J3 port on the AES Cabinet’s High Voltage Box and is accessible from the LYNK II.
Connect a third cable from LYNK II #2 CAN port to the Solis inverter #2’s BMS port. Connect a fourth cable from LYNK II #2’s LYNK port to the J4 port on the AES Cabinet’s High Voltage Box.
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You can use a splitter/combiner, as shown below, to connect two LYNK II Gateways to the J3/J4 ports on the AES Cabinet through a single cable.  |
The LYNK II communication link enables the inverter to receive real-time battery data, including state of charge, voltage, current, temperature, and charge/discharge limits, ensuring safe, accurate, and optimized operation.
This setup enables two inverters to manage and monitor the battery cabinet, receiving real-time data for state of charge, voltage, current, temperature, and charge/discharge limits from each LYNK II Gateway. Two independent LYNK II Gateways ensure precise, safe, and optimized performance with dual inverters.