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Solis 18kw Hybrid Single Phase Low Voltage Inverter Model S6-EH1P-18K03-NV-YD-L
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| Solis 10/12/14/16/18kw Hybrid Single Phase Low Voltage Inverter Specification | |||||
| Models | 9.9K | 12K | 14K | 16K | 18K |
| Input DC (PV side) | |||||
| Recommended max. PV array size | 19.8 kW | 24 kW | 28 kW | 32 kW | 36 kW |
| Max. usable PV input power | 15.8 kW | 19.2 kW | 22.4 kW | 25.6 kW | 28.8 kW |
| Max. input voltage | 550 V | ||||
| Rated voltage | 380 V | ||||
| Startup voltage | 100 V | ||||
| MPPT voltage range | 80 - 520 V | ||||
| Max. input current | 40 A / 40 A / 40 A | 42 A / 42 A / 42 A | |||
| Max. current per DC input | 20 A | 21 A | |||
| Max. short circuit current | 50 A / 50 A / 50 A | ||||
| MPPT number / Max. input strings number | 3 / 6 | ||||
| Battery | |||||
| Battery type | Li-ion / Lead-acid | ||||
| Battery voltage range | 40 - 60 V | ||||
| Max. charge / discharge current | 208 A | 250 A | 290 A | 290 A | 320 A |
| Number of battery port / Number of BMS port | 1 / 1 | ||||
| Communication | CAN / RS485 | ||||
| Output AC (Grid side) | |||||
| Rated output power | 9.9 kW | 12 kW | 14 kW | 16 kW | 18 kW |
| Max. apparent output power | 9.9 kVA | 12 kVA | 14 kVA | 16 kVA | 18 kVA |
| Rated grid voltage | L/N/PE, 220 V / 230 V | ||||
| Rated grid frequency | 50 Hz / 60 Hz | ||||
| Rated grid output current | 45 A / 43.1 A | 54.5 A / 52.2 A | 63.6 A / 60.9 A | 72.7 A / 69.6 A | 81.8 A / 78.2 A |
| Power factor | >0.99 (0.8 leading - 0.8 lagging) | ||||
| THDi | < 3% | ||||
| Input AC (Grid side) | |||||
| Max. input power | 14.8 kW | 18 kW | 21 kW | 24 kW | 27 kW |
| Input voltage range | 187 - 253 V | ||||
| Max. input current | 67.5 A / 64.5 A | 81.8 A / 78.3 A | 95.5 A / 91.3 A | 109.1 A / 104.3 A | 122.7 A / 117.4 A |
| Output AC (Back-up) | |||||
| Rated output power | 9.9 kW | 12 kW | 14 kW | 16 kW | 18 kW |
| Max. apparent output power | 2 times of rated power, 10 s | ||||
| Back-up switch time $^{10}$ | < 10 ms | ||||
| Rated output voltage | L/N/PE, 220 V / 230 V | ||||
| Rated frequency | 50 Hz / 60 Hz | ||||
| Rated output current | 45 A / 43.1 A | 54.5 A / 52.2 A | 63.6 A / 60.9 A | 72.7 A / 69.6 A | 81.8 A / 78.2 A |
| Max. AC passthrough current | 90 A | ||||
| ThDx (gilinear load) | < 3% | ||||
| Input AC (Generator side) | |||||
| Max. input power | 9.9 kW | 12 kW | 14 kW | 16 kW | 18 kW |
| Rated input current | 45 A / 43.1 A | 54.5 A / 52.2 A | 63.6 A / 60.9 A | 72.7 A / 69.6 A | 81.8 A / 78.2 A |
| Rated input voltage | L/N/PE, 220 V / 230 V | ||||
| Rated input frequency | 50 Hz / 60 Hz | ||||
| Efficiency | |||||
| Max. efficiency | 97.6% | ||||
| EU efficiency | 97.0% | ||||
| BAT charged by PV / AC max. efficiency | >94.9% / >94.33% | ||||
| Battery discharged efficiency | 93.51% | ||||
| Protection | |||||
| Surge protection | Yes | ||||
| Output over current protection | Yes | ||||
| Insulation resistance monitoring | Yes | ||||
| Residual current detection | Yes | ||||
| Integrated PV switch | Yes | ||||
| DC reverse-polarity protection | Yes (PV only) | ||||
| Protection class / Over voltage category | I / II (PV and BAT), III (MAINS and BACKUP and GEN) | ||||
| Integrated AFCI 2.0 | Optional | ||||
| Anti-islanding protection | Yes | ||||
| General Data | |||||
| Dimensions (W × H × D) | 459 × 845 × 313 mm | ||||
| Weight | 55.5 kg | ||||
| Inverter topology | Non-isolated (PV), Isolated (Battery) | ||||
| Self-consumption | < 40 W | ||||
| Operating temperature range | -25 ~ +60°C | ||||
| Relative humidity | 0 - 100% | ||||
| Ingress protection | IP66 | ||||
| Noise emission (typical) | < 65 dB(A) | ||||
| Cooling concept | Intelligent-redundant fan-cooling | ||||
| Max. operation altitude | 4000 m | ||||
| Grid connection standard | NRS 097-2-1, IEC 62116, IEC 61727, IEC 60068, IEC 61683, EN 50530, EN50549-1 | ||||
| Safety / EMC standard | IEC/EN 62109-1/-2, EN 61000-6-2/-3 | ||||
| Features | |||||
| PV connection | MCA connector | ||||
| Battery connection | Terminal Block | ||||
| AC connection | Terminal Block | ||||
| Display | 7.0" LCD display & Bluetooth + APP | ||||
| Communication interface | Standard: WF+LAN+Bluetooth, CAN-BMS, CAN-Parallel × 2, RS485-Meter, RS485, DRM, DI, DO × 2; Optional: 4G | ||||
products DESCRIPTIONPRODUCTS
S6-EH1P(9.9-18)K03-NV-YD-L: The Ultimate Low-Voltage Hybrid Inverter
Product Overview
The S6-EH1P(9.9-18)K03-NV-YD-L is a cutting-edge single-phase hybrid inverter designed for maximum flexibility. Operating with a low battery voltage range of 40-60V, this series (available in 9.9kW, 12kW, 14kW, 16kW, and 18kW models) bridges the gap between high-power performance and low-voltage safety.
Equipped with 3 independent MPPTs (Maximum Power Point Trackers) supporting up to 20A per input, this inverter is future-proofed for high-wattage solar modules. Whether you are upgrading an existing grid-tied system or building a new off-grid homestead, the S6-EH1P ensures seamless power, robust protection, and smart energy management.
Key Features (SEO Focus: High-Power, Hybrid, IP66, Battery Storage)
1. Robust & Weatherproof Design (IP66)
Built with an IP66 ingress protection rating, this inverter is fully dust-tight and protected against powerful water jets. It is engineered for harsh environmental conditions, making it suitable for outdoor installations, coastal areas, and dusty industrial environments without requiring an additional shelter.
2. Massive Scalability (Up to 6 Units in Parallel)
Future-proof your energy needs with the ability to connect up to 6 units in parallel. This feature allows you to expand your system capacity incrementally, turning a residential setup into a small commercial powerhouse without replacing the initial hardware.
3. Extreme Compatibility & Flexibility
Battery Agnostic: Supports any lithium or lead-acid battery within the 40V-60V range.
Generator Integration: Features multiple methods for generator connection and auto-control, ensuring seamless integration with existing backup systems.
Grid-Tied Retrofit: Supports existing PV grid-tied power connections for export control and off-grid use, allowing you to convert a standard solar system into a storage-ready hybrid.
4. Uninterrupted Power Supply (UPS)
Enjoy seamless on/off-grid switching in under 10ms. This near-instantaneous transfer ensures that sensitive electronics, computers, and medical equipment continue to run without interruption during grid outages.
5. High Overload Capacity
With a 200% overload capacity for 10 seconds in off-grid mode, this inverter can easily handle the surge power required to start heavy inductive loads like motors, water pumps, and air conditioners, ensuring stable operation even under peak demand.
6. Smart Load Management & PV-Only Mode
Smart Load Management: Prioritizes critical loads, extending backup time for essential appliances during long outages.
PV-Only Off-Grid Operation: Reduce upfront costs by operating the system with solar panels alone, even without a battery connected, ideal for daytime power needs.
7. Advanced Monitoring & Interface
7-Inch Industrial LCD Screen: Provides a large, user-friendly interface for local operation and real-time data viewing.
SolisCloud Platform: Access remote control, AI-driven performance optimization, and instant troubleshooting alerts from anywhere in the world.
Applications (Who is this for?)
Residential Backup Power: Ideal for homes in areas with frequent grid instability, providing a silent, reliable UPS for lights, refrigerators, and WiFi.
Remote Off-Grid Installations: Perfect for farms, cabins, or telecom sites where grid access is unavailable, relying on solar and generator backups.
Commercial & Industrial (C&I): With the ability to parallel up to 6 units, it can handle the load of small factories, workshops, and office buildings.
Hybrid Solar Upgrades: Specifically designed to integrate with existing grid-tied solar systems to add battery storage and self-consumption capabilities.
Frequently Asked Questions (FAQs)
1. What is the battery voltage range for the S6-EH1P series?
The inverter operates with a low battery voltage range of 40V to 60V. It is compatible with both Lithium-Ion and Lead-Acid batteries, making it incredibly versatile for different budgets and performance requirements.
2. Can this inverter handle the startup surge of my air conditioner or water pump?
Yes. The S6-EH1P series features a robust 200% overload capacity for 10 seconds. This allows it to handle the high starting current (inrush current) required by heavy loads like air conditioners, motors, and water pumps without tripping or stalling.
3. How fast does the inverter switch to battery power when the grid goes down?
The transfer time is less than 10 milliseconds (<10ms) . This is fast enough to be classified as a Uninterruptible Power Supply (UPS), ensuring that your computers, TVs, and sensitive equipment stay running without glitches or restarts during blackouts.
4. Is it safe to install this inverter outdoors?
Absolutely. With an IP66 ingress protection rating, the inverter is completely protected against dust and strong water jets. It is designed to withstand harsh weather conditions, including rain and snow, making it safe and reliable for outdoor wall-mounting.
