Xiamen D.T. Multi Tech Co., Ltd. is one of the most reliable manufacturers and suppliers of waterproof off grid inverter in China. With abundant experience, we warmly welcome you to wholesale cheap waterproof off grid inverter from our factory. If you have any enquiry about cooperation, please feel free to email us.
for LiFePO4 & Lead-Acid Battery
For businesses, project contractors, and off-grid property owners seeking reliable, high-capacity power solutions, the 8Kw Off Grid Inverter stands out as a robust choice. This new-generation inverter combines industrial-grade durability with user-centric features, making it ideal for both residential and commercial off-grid applications. Whether you're powering a remote farm, a rural electrification project, or a backup system for critical appliances, this 8Kw off grid inverter delivers consistent performance you can trust.
Multi-Level Protection for Harsh Environments
With three protection level options (IP21/IP54/IP65), this inverter is built to thrive in any setting. The IP65-rated model is fully dustproof and resistant to heavy rain, making it perfect for outdoor installations like farm irrigation systems, remote construction sites, or rural electrification projects. The rugged aluminum alloy shell enhances heat dissipation and durability, ensuring stable operation even in high-temperature or humid conditions. For indoor applications like off-grid homes or workshops, the IP21 model offers reliable protection while saving space.
Products Description
| DT-2KL1-US | DT-3K5L1-US | DT-08KL2-US | ||
| PV (DC Input) | Recommended max. PV input power | 1500W | 6000W | 16000W |
| Max. input voltage(Voc) | 130V | 500V | 500V | |
| MPPT operating voltage range | 30-120V (@36V Start up) | 85V-450V (@85V start up) | 85V-450V (@85V start up) | |
| Number of MPPT | 1 | 1 | 2 | |
| Max. number of input strings per MPPT | 1 | 1 | 2 | |
| Max. input current per MPPT | 25A | 15 A | 27/27A (MAX 54A) | |
| Max. short-circuit current per MPPT | 27A | 18 A | 32A/32A | |
| Grid(AC Input) | Max input power | 3100W | 4500W | 16000W |
| Max input current | 26A | 37.5A | 70A | |
| Rated grid voltage | 110/120/127Vac(LN) | 110/120/127Vac(LN) | 120/240V(127/220V(L1,L2,N)) | |
| Rated grid frequency | 50/60Hz | 50/60Hz | 60Hz | |
| Acceptable range | 80-150Vac (For Home Appliances) | 90-140Vac (For UPS) ;80-140Vac (For Home Appliances) | 90-140Vac (For UPS) ;80-140Vac (For Home Appliances) | |
| Battery Parameters (Bidirectional) | Battery type | LiFePO4 /Lead-acid | LiFePO4 /Lead-acid | LiFePO4 /Lead-acid |
| Battery voltage range | 20-60Vdc | 40-60Vdc | 40-60Vdc | |
| Rated Battery Voltage | 24Vdc | 48Vdc | 48Vdc | |
| Max. charge/discharge current | 120A/110A | 60A/65A | 150A / 170A | |
| BMS communication mode | RS485 | RS485 | RS485/CAN | |
| Back-up Output (AC Output) | Rated output power | 2000W/2400VA | 3500W/3500VA | 8000W / 8000VA |
| Rated output current | 20A | 29.2A | 36.4 A | |
| Rated output voltage / Frequency | 110/120/127V (LN) 50/60Hz | 110/120/127V (LN) 50/60Hz |
120/240V,127/220V (L1,L2,N), 60Hz |
|
| Parallel Capacity | - | Max. 12 Units | split-phase Max. 9 units; Three-phase Max. 9 units | |
| Surge power | 4800VA 2S | 7000VA 5s | 16000VA 5s | |
| THDV (@ linear load) | <3% | <3% | <3% | |
| Switching time | 20ms typical (For Home Appliances) | 10ms typical (For UPS) 20ms typical (For Home Appliances) | ||
| Efficiency | Peak efficiency | 95.00% | 98.00% | 98.00% |
| Max. MPPT efficiency | 90.00% | 99.90% | 99.90% | |
| Protection | Inner protection | ✓ Output short-circuit protection ✓ Output overvoltage protection | ||
| Surge protection | PV Type III, AC: Type III | |||
| IP rating | IP 21 | IP54 | IP65 | |
| General Parameters | Operating temperature range | -10°C ~ 50°C | -5°C ~ 50°C | -5°C ~ 50°C |
| Relative humidity range | 10 %-90 % | 5 %-95 % | 5 %-95 % | |
| Max. operating altitude | >2000m derating | >2000m derating | >2000m derating | |
| Standby self-consumption | <20W | <10W | <10W | |
| Installation type | Wall-mounted | Wall-mounted | Wall-mounted | |
| Cooling mode | Fan cooling | Fan cooling | Smart cooling | |
| Communication | RS232/RS485 | RS232/RS485/Dry contact/WI-FI | RS232/RS485/Dry contact/WI-FI | |
| Display | LCD | LCD | LCD | |
| Mechanical Specifications | Inverter dimensions (L*W*H) (mm) | 350*290*108 | 445*347*120 | 598.8*454*217.2 |
| Net weight (kg) | 6 | 12 | 20.5 | |
| Shipping dimensions (L*W*H) (mm) | 495*365*165 | 560*465*240 | 765*555*313 | |
| Gross weight (kg) | 7 | 14 | 25 | |
| Warranty | 2 Years | 3 Years | 5 years | |
Long Warranty & Global Technical Support
Power gaps are a thing of the past with our 8Kw off grid inverter. Its 20ms typical response time ensures instant power delivery when loads change-critical for appliances that can't tolerate even brief interruptions, like refrigerators preserving perishables or sump pumps preventing flooding. Whether used as a primary power source for off-grid properties or a backup for grid-tied systems during outages, it delivers consistent voltage without fluctuations, protecting your equipment and keeping operations running smoothly.
We stand behind the quality of our 8Kw off grid inverter with a 2-5 year warranty (extended options available for bulk orders). Our global after-sales team provides 24/7 technical support, from pre-installation consultation to on-site troubleshooting. We also supply detailed wiring diagrams, user manuals, and spare parts-so distributors and contractors can offer reliable service to their clients, reducing project downtime and building trust.
FAQ
Q: What are the differences in application scenarios between the different protection levels (IP21/IP54/IP65)? Which one is preferred for outdoor installation?
A: The protection level differences correspond to different installation environments, precisely matching scenario needs:
IP21: Suitable for indoor dry environments (e.g., equipment rooms, basements) to prevent minor dust intrusion;
IP54: Suitable for semi-outdoor/sheltered environments (e.g., farm sheds, construction site offices) with dustproof and splash-proof protection;
IP65: Suitable for open-air outdoor environments (e.g., farms, remote construction sites, field power stations) with full dustproof and heavy rain resistance.
Q: What international certifications has the product obtained? Can it meet the access requirements of major markets such as the US and EU?
A: It has passed UL certification (core access for the US market), CE certification (general certification for the EU market), and TÜV certification (authoritative electrical safety certification for the EU), and complies with IEC international standards.
Q: What is the specific warranty policy? How to handle faults during the warranty period?
A: Minor faults: Provide remote technical guidance + free spare parts shipping;
Major faults: Respond within 48 hours, coordinate local service providers for on-site repair or replacement of new units, minimizing project downtime.
Q: What is the operating efficiency of the inverter?
A: The maximum conversion efficiency of this 8Kw off-grid inverter is ≥95%, and the weighted efficiency is ≥94% (complying with international energy efficiency standards).
Q: Can you provide technical documents such as product datasheets, wiring diagrams, and certification certificates for project bidding or customer registration?
A: Yes. A full set of technical documents can be provided free of charge before purchase, including:
Detailed datasheet (including all parameters, efficiency curves, and dimension drawings);
Wiring diagram (including connection methods for PV, battery, load, and grid);
Scanned copies of certification certificates (UL/CE/TÜV)
Hot Tags: waterproof off grid inverter, waterproof off grid inverter manufacturers, suppliers, factory, 10KW Off Grid Solar Inverter, 12KW Off Grid Solar Inverter, 3KW Off Grid Solar Inverter, 5KW Off Grid Solar Inverter, 8KW Off Grid Inverter, Off Grid Inverter