The Solis S6-EH1P6K-L-PLUS 6kW Hybrid Solar Inverter is a single-phase energy solution engineered to eliminate the impact of load shedding and high electricity tariffs for homes and small businesses in Bangladesh:
Uninterrupted Power Delivery: Provides 6000W continuous rated output with an ultra-fast UPS switchover time under 4ms, ensuring IT hardware, medical devices, and home appliances never reset during grid failures.
Massive PV & Fast Battery Charging: Supports up to 12kW peak solar array sizing (9.6kW usable DC power) and delivers up to 135A charge/discharge current for rapid replenishment of 48V Lithium-ion and Lead-acid battery banks.
Dual MPPT Flexibility: Features two independent MPPT trackers (90–435V range) to maximize solar generation across multi-angle rooftops and partially shaded conditions.
Silent & Resilient Construction: Built with an IP66 dust- and weather-tight casing using fanless natural convection cooling (<30 dB noise level), making it durable for Bangladesh’s humid monsoon climate.
Scalable Power Architecture: Capable of parallel networking up to 48kW for expanding energy demands across single-phase or three-phase setups.
The Solis S6-EH1P6K-L-PLUS 6kW Hybrid Solar Inverter is a high-performance single-phase bidirectional inverter designed for residential, commercial, and small industrial solar PV energy storage installations. It functions by concurrently coordinating solar photovoltaic power from rooftop arrays, chemical energy stored in 48V battery banks, and utility power from the national grid.
In Bangladesh, where unexpected grid outages, fluctuating line voltages, and escalating commercial/residential tariffs present constant challenges, this hybrid inverter serves as an automated powerhouse. It prioritizes direct solar consumption, stores surplus midday generation into battery systems, provides instantaneous emergency backup during blackouts, and supports parallel scalability up to 48kW for expanding infrastructure.
6kW Continuous Output & 2× Peak Surge: Delivers continuous 6000W rated AC output on both grid-connected and backup lines, accommodating surge peaks of 12kVA for 10 seconds to start motor-driven appliances.
Ultra-Fast UPS Transfer (<4ms): Shifts between grid and battery storage in less than 4 milliseconds, outperforming conventional IPS systems and preventing server reboots or system crashes.
Massive PV Oversizing: Supports a maximum recommended PV array of 12kW with 9.6kW usable DC input power across dual MPPT trackers with 2 strings per tracker.
High-Current 135A Battery Interface: Rapidly charges and discharges 48V nominal battery systems (40–60V) at up to 6kW charge/discharge capacity with 6-stage programmable cycles.
IP66 Enclosure & Fanless Cooling: High-grade weatherproof and dust-tight aluminum chassis utilizing natural convection cooling for silent, reliable operation in tropical climates.
Scalable Multi-Unit Paralleling: Supports networking of multiple units to form single-phase or three-phase systems delivering up to 48kW of continuous power, alongside full AC-coupling compatibility for existing grid-tied plants.
Optimized Dual MPPT Architecture: Dual independent tracking channels (90–435V MPPT range) with 16A operating current per channel ensure maximum solar energy harvesting from multi-pitch rooftops and split-orientation panel layouts.
Superior Power Quality: Maintains total harmonic distortion (THDi < 2%, THDv < 2%) with a power factor adjustable between 0.8 leading and 0.8 lagging, providing clean pure sine-wave AC power.
Advanced Battery Longevity Management: Features dedicated CAN and RS485 communication protocols to integrate with smart Lithium battery BMS units, optimizing 6-stage charge profiles to extend cycle life.
High Conversion Efficiency: Delivers a maximum efficiency of 96.2%, European efficiency of 96.1%, and battery charge/discharge efficiency up to 95.3%.
Residential duplexes, townhouses, and multi-family apartments
Corporate workstations, IT network server hubs, and data centers
Light industrial facilities, engineering workshops, and fabrication shops
Healthcare facilities, diagnostic clinics, dental surgeries, and cold-chain pharmacies
Commercial retail centers, superstores, restaurants, and bakeries
Agricultural installations, hatcheries, and rural infrastructure setups
Zero Disruption During Outages: Under 4ms transfer eliminates flicker and equipment shutdowns during grid failure.
Long-Term Return on Investment: Lowers power expenses by shifting consumption from peak tariffs to stored solar energy.
Tropicalized Durability: IP66 rating resists intense monsoon rainfall, airborne dust, and high ambient humidity.
Zero Operational Noise: Natural convection eliminates internal cooling fans, resulting in completely silent operation.
| Specification | Details |
| Model | S6-EH1P6K-L-PLUS |
| Brand | Solis |
| Rated AC Power (Grid & Backup) | 6 kW (6000 W) |
| Max. Apparent Power (Grid / Backup) | 6 kVA / 12 kVA (2× rated for 10s) |
| Max. Recommended PV Array Size | 12 kW |
| Max. Usable PV Input Power | 9.6 kW |
| Max. PV Input Voltage | 500 V |
| MPPT Operating Voltage Range | 90 V – 435 V |
| Start-up Voltage | 90 V |
| Rated DC Input Voltage | 330 V |
| Number of MPPTs / Strings | 2 / 2 |
| Max. PV Input Current | 16 A / 16 A |
| Max. PV Short Circuit Current | 20 A / 20 A |
| Battery Type | Lithium-ion (Li-ion) / Lead-acid |
| Battery Voltage Range | 40 V – 60 V |
| Max. Charge / Discharge Current | 135 A |
| Max. Charge / Discharge Power | 6 kW |
| Rated Grid Voltage / Range | 220 V / 230 V (187 V – 253 V) |
| Rated Grid Frequency / Range | 50 Hz / 60 Hz (45–55 Hz / 55–65 Hz) |
| Rated AC Output Current | 27.3 A (at 220V) / 26.1 A (at 230V) |
| Max. AC Passthrough Current | 40 A |
| Backup Switchover Time | < 4 ms |
| Maximum Efficiency | 96.2% |
| European Efficiency | 96.1% |
| Battery Discharge to AC Efficiency | 93.8% |
| Protection Rating | IP66 |
| Cooling Method | Natural Convection (Fanless) |
| Dimensions (W × H × D) | 335 mm × 560 mm × 227 mm |
| Weight | 21.6 kg |
| Operating Temperature | Not Available |
| Communication Interfaces | CAN, RS485 |
| Warranty | 5 Years |
✓ 6kW continuous AC backup and on-grid power delivery
✓ Ultra-responsive <4ms automatic UPS transfer time
✓ 135A high-current charge/discharge capacity for fast replenishment
✓ Dual MPPTs with up to 12kW maximum PV array capacity
✓ Fanless natural convection design with IP66 ingress protection
✓ Scalable parallel configuration up to 48kW (single or three-phase)
✓ Compatible with 48V Lithium-ion and Lead-acid battery banks
✓ Advanced 6-stage customizable charge and discharge profiles
Eliminates Load Shedding Impact: Operates as a seamless UPS to prevent equipment shutdowns and data loss.
Reduces Monthly Utility Bills: Directs daytime solar power into heavy household loads and stores surplus power for night usage.
Quiet Indoor Living: Zero-fan natural cooling keeps indoor spaces quiet and free from mechanical fan noise.
Engineered for Harsh Weather: IP66 water and dust protection ensures extended service life in hot, humid, and coastal environments.
Low Maintenance Design: Solid-state fanless design prevents dust accumulation and mechanical failures.
Mounting Surface: Secure the inverter vertically against a load-bearing wall or steel structure capable of safely supporting 21.6 kg plus dynamic stress.
Clearance Spacing: Maintain a minimum 300 mm clearance on the left, right, and top sides, and 500 mm clearance below the unit to facilitate natural heat dissipation.
Cabling & Protection: Use properly sized copper DC cables for the battery circuit (minimum 35–50 mm² rated for 135A continuous flow) with external DC disconnect breakers and Class-T/NH fuses.
Grid Connection: Ensure a solid single-phase AC feed (L/N/PE) with a dedicated 40A double-pole AC circuit breaker and direct connection to a certified earthing pit (<5 Ohms resistance).
Heatsink Inspection: Periodically clean the rear cooling fins of dust, debris, and cobwebs using a soft brush or compressed dry air to maintain optimal cooling.
Terminal Tightness: Check all DC, AC, and battery terminal connections during annual routine inspections to avoid loose connections and thermal hotspots.
Firmware Verification: Ensure communication gateways are online to receive the latest system updates and operational patches.
Isolate and de-energize all AC breakers, battery isolation switches, and DC PV isolators before opening wiring enclosures.
Allow internal capacitors to discharge for at least 5 minutes after de-energizing before servicing internal components.
Never reverse the positive and negative polarity on battery or PV terminals.
Q: What is the price of the Solis S6-EH1P6K-L-PLUS 6kW inverter in Bangladesh?
A: Pricing depends on import duties, shipping logistics, and accompanying warranty packages. Contact our sales department for current availability and an official quotation.
Q: Where can I buy the Solis S6-EH1P6K-L-PLUS in Bangladesh?
A: Genuine units are available through our online engineering store and authorized renewable energy distribution networks across Dhaka, Chattogram, and all regional districts.
Q: Can this 6kW inverter run heavy loads like air conditioners during power cuts?
A: Yes. With a continuous 6000W output and a 12kVA short-term surge capacity, it easily handles modern inverter air conditioners (up to 2 tons), water pumps, refrigerators, and heavy electronic loads, provided the connected 48V battery bank is properly sized.
Q: What makes the <4ms UPS switch time important?
A: A switchover time under 4 milliseconds ensures that computers, networking equipment, sensitive medical devices, and industrial controllers remain powered without restarting during grid outages.
Q: Does this inverter work with Lead-acid and Lithium batteries?
A: Yes. It works with both Lead-acid (tubular/gel) and Lithium-ion/LiFePO4 batteries operating within the 40V to 60V window, communicating via CAN or RS485 protocols.
Q: What is the maximum solar panel wattage I can connect?
A: The inverter supports a maximum recommended PV array of up to 12kW, with up to 9.6kW of usable DC input across its dual MPPT trackers.
Q: Can multiple Solis S6-EH1P6K-L-PLUS units be connected together?
A: Yes. Multiple units can be paralleled together to create either large single-phase setups or balanced three-phase systems delivering up to 48kW total capacity.
Q: Is this inverter safe for outdoor installation in Bangladesh during monsoon season?
A: Yes. It features an IP66 ingress protection rating, making it completely protected against dust ingress and high-pressure water jets from rain.
Q: Does it have internal cooling fans?
A: No. It uses natural convection cooling with an external heatsink, ensuring quiet operation and removing mechanical fan maintenance.
Q: How do I monitor the energy generation and battery status?
A: Real-time operational metrics, battery charge states, and power flow diagrams can be tracked via the SolisCloud mobile app and web portal using compatible communication interfaces.
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