# Solis 5kW Single Phase Hybrid Solar Inverter (S6-EH1P5K-L-PLUS)
## Short Description
The Solis S6-EH1P5K-L-PLUS is a high-performance 5kW single-phase hybrid solar inverter engineered to anchor modern residential energy ecosystems. Part of the advanced Solis S6 platform, this hybrid power hub smoothly directs energy flow among your solar arrays, low-voltage 48V battery storage packs, and the local utility grid. Featuring dual independent MPPTs with an expanded 16A input current capability, it seamlessly integrates with contemporary high-power solar modules. With a integrated UPS-class automatic transfer switch that responds in under 10 milliseconds, the S6-EH1P5K-L-PLUS ensures continuous power to critical home appliances during unexpected blackouts, providing true utility independence and peak efficiency.
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## Product Overview
Modern domestic properties require an intelligent power management framework capable of countering rising electricity tariffs and localized grid instability. The Solis S6-EH1P5K-L-PLUS Single Phase Hybrid Inverter delivers a robust 5kW power capacity, engineered specifically to manage household consumption, energy storage, and grid interaction dynamically.
Built on a compact, transformerless architectural layout, this hybrid system achieves a peak efficiency of 97.5%. Its dual MPPT system supports a wide tracking voltage window and handles up to 16A of DC input per string. This high current tolerance allows system designers to utilize the latest generation of high-efficiency solar panels without encountering current-clipping losses or early thermal throttling.
The “PLUS” model variant brings a wealth of programmable features to your finger tips, including native smart-grid support, customizable time-of-use (ToU) load shifting, and high-capacity off-grid backup paths. If the primary utility grid fails, the inverter automatically creates an isolated microgrid to protect your household infrastructure. Contained within a durable aluminum housing that relies on natural convection cooling, this fanless inverter operates silently and prevents internal contamination from dust or moisture, ensuring a long operational life.
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## Key Features
* **Dual MPPT Trackers:** Offers two independent tracking circuits with a 16A input current capacity per string, matching perfectly with large-cell solar configurations.
* **Ultra-Fast Backup Transfer:** Switches over to backup battery power in less than 10 milliseconds, protecting sensitive computers, network hardware, and smart automation systems from reboots.
* **Low Voltage 48V Battery Interface:** Features an open-architecture low-voltage battery circuit designed to interface easily with leading 48V Lithium Iron Phosphate (LiFePO4) storage options.
* **Intelligent Time-of-Use Management:** Allows full customization of battery charging and discharging schedules to maximize savings based on peak and off-peak utility pricing.
* **Passive Convection Cooling:** Employs an optimized, fanless engineering design that operates entirely silently while eliminating mechanical breakdown risks.
* **Smart Meter Zero-Export Control:** Integrates with external current transformers (CT clamps) or smart meters to manage precise power export limits and enforce zero-export restrictions.
* **Integrated AFCI Protection:** Includes intelligent arc-fault detection that scans the DC lines constantly, automatically shutting down the system if a hazardous electrical arc is discovered.
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## Benefits
* **Optimized Solar ROI:** Reduces reliance on utility power by prioritizing self-consumption and leveraging battery reserves during high-tariff periods.
* **Uninterrupted Household Operation:** Supplies up to 5000W of continuous power during grid outages, keeping vital electronics, refrigeration, and light arrays active.
* **Whisper-Quiet Performance:** The passive cooling design means zero high-frequency fan noise, making it suitable for indoor areas, utility closets, and corridors.
* **Vendor-Agnostic Battery Pairing:** Offers broad integration with multiple third-party lithium battery storage manufacturers, avoiding strict ecosystem lock-in.
* **Streamlined Workspace Layout:** The compact enclosure profile with accessible lower connection bays minimizes structural footprint during wall installation.
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## Technical Specifications
| Parameter | Specification Details |
| — | — |
| **Model Number** | S6-EH1P5K-L-PLUS |
| **Max. Recommended PV Input Power** | 8.0 kW |
| **Max. Input DC Voltage** | 600V |
| **Startup Voltage** | 60V |
| **MPPT Voltage Tracking Range** | 90V – 520V |
| **Number of MPPT Trackers / Max Strings** | 2 / 2 |
| **Max. Input Current per MPPT** | 16A / 16A |
| **Rated AC Output Power (Grid-Tied)** | 5,000W / 5,000VA |
| **Max. AC Output Power (Backup Continuous)** | 5,000W / 5,000VA |
| **Nominal Grid Voltage / Range** | 220V / 230V (180V – 270V) |
| **Grid Phase Configuration** | Single Phase |
| **Battery Voltage Operating Range** | 40V – 60V (Nominal 48VDC) |
| **Max. Charge/Discharge Current** | 100A |
| **Backup Transfer Switching Time** | < 10 ms |
| **Peak Efficiency** | 97.5% |
| **Ingress Protection Rating** | IP66 |
| **Cooling Method** | Natural Convection (Fanless) |
| **Dimensions (W x H x D)** | 455mm x 503mm x 193mm |
| **Net Weight** | 21.5 kg |
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## Why Choose This Product
The Solis S6-EH1P5K-L-PLUS sets a high benchmark by combining a robust 5kW single-phase output with a highly flexible DC input configuration. While generic 5kW hybrid systems limit string currents to 11A or 13A, Solis provides a full 16A per MPPT tracker. This ensures your system can harvest every watt generated by large, modern solar panels without clipping losses.
Ginlong Solis is an established global leader in string inverter engineering. Opting for the S6 series guarantees regular firmware optimization, native cloud data tracking via the SolisCloud interface, and professional-grade safety implementations like integrated arc-fault and surge management protocols inside a durable, long-lasting hardware frame.
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## Applications
* **Standard Family Residences:** Lowers electricity bills by driving common appliances, climate control systems, and home media centers via solar or stored battery reserves.
* **Dedicated Home Offices:** Guarantees uptime for professional computer networks, workstations, and communication loops through its ultra-fast backup path.
* **Properties with Complex Rooflines:** The dual independent MPPT trackers allow panels to be separated across distinct roof aspects—like East and West faces—without compromising efficiency.
* **Farms and Small Commercial Units:** Operates essential low-power water pumps, ventilation systems, and security arrays independently from the main grid lines.
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## Pros
* High 16A MPPT rating integrates perfectly with contemporary high-wattage solar modules.
* True UPS performance with a transfer speed under 10ms protects delicate home computing systems.
* IP66 weather-resistant construction permits reliable indoor or outdoor installation.
* The fanless convection cooling framework ensures completely silent daily operation.
* Low 60V DC startup threshold extends energy production windows during early morning hours.
## Cons
* The 5kW output threshold requires careful load distribution during blackouts; major inductive appliances (like large central air conditioning units) must be systematically budgeted.
* Full hybrid functionality requires a separate, communication-compatible 48V lithium battery pack.
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## Buying Guide
When selecting the Solis S6-EH1P5K-L-PLUS for your project layout, factor in these core structural design principles:
1. **Calculate Inrush Surge Demands:** The inverter delivers up to 5kW continuously during grid dropouts. Review the start-up inrush current of items like pool pumps or compressor refrigerators to verify they fit within the system’s peak capabilities.
2. **Verify Battery Protocol Match:** This inverter utilizes low-voltage 48V battery architecture. Consult the latest Solis approved battery list to ensure your chosen lithium battery’s BMS communicates over CAN or RS485 smoothly.
3. **Solar Array String Sizing:** The inverter manages up to 8kW of total solar input across its two trackers. Ensure the open-circuit voltage ($V_{oc}$) of each panel string remains below 600VDC, adjusting for cold-weather voltage coefficients.
4. **Confirm Grid Compliance Details:** If you plan to export excess energy for credit, check your local electric provider’s interconnection rules to program export parameters via the smart meter interface correctly.
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## Installation
*Installation must be handled by a licensed solar engineer or certified electrical contractor.*
1. **Structural Wall Mounting:** Securely anchor the heavy-duty installation bracket horizontally onto a non-flammable wall surface. Lift the inverter and set it down firmly onto the chassis retention grooves.
2. **Battery Circuit Connections:** Run high-amperage 48V battery cables through an external inline DC circuit breaker. Connect to the battery terminals with precise polarity, then connect the BMS data communications cable.
3. **Solar Panel Input:** Group your solar modules into strings keeping cumulative open-circuit voltages under 600VDC. Route wires through the integrated DC isolation switch and connect to the corresponding MPPT terminals.
4. **AC Wiring Termination:** Route lines from your main panel to the “Grid” connection port, and run your dedicated emergency circuits to the “Backup” terminal block. Mount the included CT clamp or smart meter around your main incoming service line.
5. **System Activation:** Activate the battery bank breaker, switch on the PV DC isolator, and close the AC grid breakers. Use the SolisCloud application or front control interface to complete the system configuration wizard, selecting your battery type and regional grid parameters.
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## Maintenance
* **Heatsink Cleaning:** Clean dust and organic material accumulation from the aluminum rear heatsink fins every six months using a soft brush to optimize passive thermal dispersion.
* **Terminal Inspections:** Periodically verify that all quick-plug terminal connections, including MC4 strings, AC wiring paths, and battery cables, are firmly seated and showing no signs of strain.
* **Firmware Verification:** Connect to the SolisCloud management platform regularly to ensure your inverter has the latest firmware updates for optimized battery interaction.
* **Clearance Areas:** Maintain clear airflow corridors around the inverter chassis, ensuring no clutter or structural items obstruct natural air movement.
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## Safety Tips
* **High Voltage Warning:** Solar arrays and battery systems generate high voltages that present electrical risks. Isolate all external DC and AC disconnect switches before touching any system terminals.
* **Capacitor Bleed Down Period:** After switching off all system isolation switches, wait at least 5 minutes for internal storage capacitors to discharge fully before removing access covers.
* **No User-Serviceable Internals:** Do not break the main metal casing seal. Internal servicing must be managed by certified personnel to prevent injury and preserve product warranty.
* **Grounding Continuity:** Connect the chassis earth grounding lug securely to your property’s primary grounding electrode system to ensure the integrated surge features operate correctly.
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## Frequently Asked Questions
### Can the Solis S6-EH1P5K-L-PLUS operate without a battery bank?
Yes. The inverter operates as a standard grid-tied solar system without a battery bank connected. This allows you to deploy the solar array first and integrate a 48V lithium battery storage system later.
### What batteries work seamlessly with this 5kW model?
It connects with low-voltage 48V Lithium Iron Phosphate (LiFePO4) battery packs from leading brands that share matching CAN or RS485 communication protocols validated by Solis engineering.
### Will my appliances reboot when the grid shuts down?
No. The integrated automatic transfer mechanism switches to backup power mode in less than 10 milliseconds, keeping home electronics, servers, and networks running smoothly without a reboot.
### Can I run a central heating system or large air conditioner on the backup port?
An energy-efficient inverter air conditioner or modern heating array can run on the 5kW backup line, provided the total simultaneous power demand of all active appliances stays below 5,000 Watts.
### What is the maximum number of solar panels I can attach?
The inverter accommodates up to 8.0kW of total solar panel capacity. For instance, you can distribute sixteen 500W solar modules divided evenly across its two independent MPPT tracking lines.
### Does this hybrid inverter support zero-export limits?
Yes. When paired with the included CT clamp or an approved Solis smart meter network, you can program the inverter to adjust its output dynamically to prevent exporting energy back to the public utility.
### Is this unit noisy when processing high loads?
No. The S6-EH1P5K-L-PLUS features a fanless natural convection cooling profile. Because it uses no mechanical fans, it runs almost completely silently, making it excellent for indoor domestic installations.
### What does the integrated AFCI feature protect against?
The Arc-Fault Circuit Interrupter (AFCI) monitors your solar panel lines for irregular electrical arcing. If an abnormal arc is found, the system immediately cuts off operation to mitigate potential electrical fire hazards.
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## Product Review
The Solis S6-EH1P5K-L-PLUS stands out as a highly reliable option in the 5kW single-phase residential hybrid market. During testing, its 16A MPPT input capacity proved highly effective, allowing hassle-free integration with large high-current modules without encountering energy-clipping issues during peak sun conditions. The passive cooling architecture keeps the unit silent, resolving the fan noise concerns common with heavy-duty residential setups.
The SolisCloud interface provides detailed system data tracking, though the detailed management panels can require a small learning curve for first-time solar owners. The 5kW continuous backup output is robust and easily manages common household electronics, refrigeration, and light circuits during power failures, provided high-draw heating elements are kept on the non-backed lines. Overall, its rugged IP66 frame, combined with reliable safety additions like integrated arc-fault protection, makes it an exceptionally dependable long-term choice.
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## Final Verdict
The Solis S6-EH1P5K-L-PLUS Hybrid Solar Inverter offers an excellent balance of high input current capacity, silent passive cooling, and rapid backup performance. Whether your goal is to lower monthly utility bills, secure stable backup power for a home office, or establish an expandable residential storage system, this unit provides consistent and reliable results.
**Ready to enhance your home’s energy efficiency and protect against blackouts? Add the Solis S6-EH1P5K-L-PLUS to your system design today, or contact our engineering support team for assistance with your solar layout.**
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