Solis S6 16kW 48V Hybrid Inverter, 120/240V, APsmart RSD Transmitter – S6-EH2P16K03-SV-YD-L-US-APST
SKUS6-EH2P16K03-SV-YD-L-US-APST
The Solis S6-EH2P16K03-SV-YD-L-US-APST is a 16 kW, 48 V low-voltage hybrid inverter for homes on 120/240 V split-phase service. It combines solar charging (three MPPTs), a 48 V battery inverter/charger, grid connection, a 200 A passthrough for whole-home backup and a smart...
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Product Overview
The Solis S6-EH2P16K03-SV-YD-L-US-APST is a 16 kW, 48 V low-voltage hybrid inverter for homes on 120/240 V split-phase service. It combines solar charging (three MPPTs), a 48 V battery inverter/charger, grid connection, a 200 A passthrough for whole-home backup and a smart port for a generator or AC-coupled solar.
Solis describes it as able to run on-grid, off-grid or as a microgrid. The battery is a 48 V-class bank (40–60 V), not a high-voltage battery, and backup can cover dedicated loads or the whole home.
This version has the APsmart (APS) rapid shutdown transmitter built in, identified by the -APST suffix. The transmitter sends a signal along the PV wires to APsmart receivers at the panels, so the array can meet NEC rapid shutdown rules without a separately mounted transmitter.
Best For
- Larger homes on 120/240 V split-phase service: 16 kW rated output, with backup output at the same rating.
- Whole-home backup with a 48 V battery: The 200 A continuous passthrough lets the inverter sit between the utility and the loads.
- Generator backup: The smart port accepts a generator up to 24 kW and 100 A, per Solis's datasheet.
- Arrays using APsmart module-level rapid shutdown: The built-in transmitter works with APsmart RSD-S-PLC-A or RSD-D-20 receivers per Solis's June 2026 compatibility sheet.
Key Features & Specifications
| Specification | Details |
|---|---|
| Product type | 48 V low-voltage hybrid inverter (on-grid, off-grid and microgrid operation), split-phase |
| Model / ordering part number | S6-EH2P16K03-SV-YD-L-US-APST (APsmart transmitter built in) |
| Rated output (grid and backup) | 16 kW / 16 kVA; 240 V L1-L2 (120/240 V split-phase); 66.7 A |
| Backup surge | 3× rated power for 1 s; 2× rated power for 10 s |
| Backup switch time | Less than 10 ms |
| Grid passthrough | 200 A maximum continuous |
| Grid input voltage range; frequency | 211–264 V; 58.8–61.2 Hz |
| PV input | 3 MPPTs, 2 strings each; recommended maximum PV power 25.6 kW |
| MPPT range; start-up voltage; maximum DC input | 100–450 V (full load 186–450 V); 100 V; 550 V |
| Current per MPPT | 40 A maximum input; 50 A maximum short-circuit |
| Battery | Li-ion or lead-acid; 40–60 V; 290 A maximum charge/discharge; CAN and RS485 communication |
| Generator input | 24 kW maximum; 100 A |
| Efficiency | Maximum 96.02%; CEC 95.45% |
| Rapid shutdown | Integrated APsmart transmitter (-APST suffix, per Solis's manual); receivers: APsmart RSD-S-PLC-A or RSD-D-20 per Solis's June 2026 compatibility sheet |
| Protection | Ground fault monitoring, integrated AFCI, PV reverse-polarity protection |
| Enclosure; temperature | Type 4X; −25°C to 60°C (−13°F to 140°F) |
| Dimensions; weight | 534 × 930 × 297 mm (21.02 × 36.61 × 11.69 in); 65.8 kg (145.06 lb) |
| Monitoring | SolisCloud; 7.0 in LCD, Bluetooth and app; RS485, with optional cellular, Wi-Fi or LAN |
| Certifications (per Solis) | UL 1741, UL 1741 SB, UL 1741 PVRSS, UL 1699B, UL 1998, CSA C22.2 107.1; IEEE 1547-2018, IEEE 1547.1-2020, CA Rule 21 |
| Source | Solis S6-EH2P(9.6-16)K03-SV-YD-L-US datasheet V2.2 (PDF dated March 16, 2026); Solis's user manual (Version 2.7, March 5, 2026); Solis's 2026 Master Product Compatibility Sheet (June 8, 2026) |
What You May Also Need
Usually required
- APsmart module-level rapid shutdown receivers: Use APsmart RSD-S-PLC-A (one module) or RSD-D-20 (two modules) receivers per Solis's June 2026 compatibility sheet (the 2026 Master Product Compatibility Sheet, dated June 8, 2026). Solis says receivers are sold separately, transmitter and receiver brands cannot be mixed, and installing components not on its list can void the inverter warranty. Check the receiver's full model number, including the suffix, before ordering.
- A 48 V battery bank: Solis publishes a list of closed-loop (CAN) batteries for this inverter; check the current list for the battery model and quantity. Solis's user manual (Version 2.7, March 5, 2026) also allows a 48–52 V lithium or lead-acid battery in open-loop mode. In that mode the inverter cannot read battery state of charge or faults, so confirm the battery warranty covers open-loop use.
- Battery cables and DC overcurrent protection: Size them for up to 290 A, following Solis's and the battery maker's manuals.
May be required
- Current transformers (CTs) or an energy meter: Solis's user manual (Version 2.7, March 5, 2026) says self-use mode works only with CTs or a meter installed. Two 250 A split-core CTs (CHINT NCTK-24) come with the inverter, per that manual and Solis's June 2026 compatibility sheet. The manual also calls for a CHINT energy meter in some layouts, for example when more than one inverter is installed; check the manual's meter conditions for your site.
- Disconnects and breakers: Additional AC disconnects or breakers may be needed depending on whether you back up the whole home or selected loads.
- A backup loads panel: Needed when you back up dedicated loads rather than the whole home.
Optional upgrades
- Generator: Connects to the smart port (24 kW, 100 A maximum per Solis). Solis's manual also covers generator dry-contact control.
- Cellular, Wi-Fi or LAN module: Optional communication for SolisCloud monitoring.
Check current manufacturer documentation before combining components, especially batteries, inverters, communications equipment and system-control hardware.
Important Considerations
- Match the rapid shutdown brand. The built-in transmitter is APsmart, so the module-level receivers must be APsmart models that Solis lists for this inverter. Solis says using the transmitter outside its requirements may damage the inverter, and that damage is not covered by the warranty.
- 48 V battery, not high-voltage. This inverter takes a 40–60 V battery. High-voltage battery systems are not compatible with it.
- 120/240 V split-phase only. The datasheet lists 240 V L1-L2 output with a 211–264 V grid range. It is not a 208 V three-phase inverter.
- Size and weight. At 145 lb, the inverter needs a wall and mounting method that can carry it.
- Professional installation. Grid-connected hybrid systems need utility interconnection approval and are installed by qualified installers under local electrical codes.