4kW 24V Off-Grid Solar Inverter | 140A MPPT | EASUN
- Built for U.S. 120/240V Split-Phase Power: Supports 120Vac L1/N, 120Vac L2/N, and 240Vac L1/L2 split-phase output for U.S. home backup and selected 240V loads.
- 12kW Rated Output for Larger Home Backup Systems: Delivers up to 12,000W split-phase rated output to support essential home loads, larger appliances, pumps, tools, and backup circuits when properly sized.
- 18kVA Peak Power for Demanding Startup Loads: Provides up to 18,000VA peak power to help handle short startup surges from motor-driven equipment such as well pumps, garage tools, and selected HVAC loads.
- 6HP Motor Load Capability: Built to support heavier residential and light commercial motor loads, making it suitable for farms, workshops, pumps, and utility backup applications.
- Dual MPPT Solar Input for Flexible PV Design: Two independent MPPT trackers support up to 6000W + 6000W solar input, giving installers more flexibility for different roof angles, solar strings, and larger PV arrays.
- 48V LiFePO4 and Lead-Acid Battery Support: Works with 48V lithium and lead-acid battery systems, including adjustable battery settings and RS485/CAN BMS communication for compatible lithium batteries.
- Batteryless Operation for Flexible System Building: Supports batteryless operation, allowing solar and utility power to supply loads before adding battery storage later.
- 10ms Typical Transfer for Backup Power: Switches from bypass to inverter mode in about 10ms typical transfer time, helping essential loads continue running when grid power is interrupted.
- Generator Input Ready for Extended Outages: Supports generator input as an additional backup source for long outages, off-grid homes, farms, and rural properties where grid power is unreliable.
- CT Zero-Export Control for Solar Self-Consumption: Supports CT-based zero-export control to help reduce or prevent excess solar power from feeding back to the grid in self-consumption setups.
Stocked locally in U.S. warehouses. Free shipping nationwide with delivery to your door in 2–5 business days.
Enjoy hassle-free 30-day returns. Backed by an official product warranty and 24/7 dedicated technical after-sales support.
Engineered to meet UL 1741 and FCC Part 15 Class B standards. Contact us directly to receive full certification documents for local utility permitting.
Our batteries come with a 5-year warranty, which can be extended to 7 years total upon product registration. Accessories are covered by a 1-year warranty, and like-new (refurbished) batteries include a 1-year warranty.
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We offer free shipping within the continental U.S. via UPS Ground or FedEx, with orders typically processed in 1–2 business days and delivered within 2–5 business days. Large products such as 12V 628Ah, 48V 314Ah batteries, or 12kW inverters are shipped by truck (LTL) and require signature upon delivery. After order confirmation, we will contact you by email to confirm shipment, and transportation arrangements typically take about 48 hours. Please note that we do not ship to Alaska, Hawaii, Puerto Rico, or PO Box addresses. Delivery times may vary due to external factors such as carrier delays or weather conditions.
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12kW 48V Hybrid Solar Inverter for U.S. Home Backup Power
The EASUN SGR-12KW Hybrid Solar Inverter integrates solar input, 48V battery storage, utility power, and generator backup into one flexible energy system for U.S. home backup and off-grid applications.
Built for 120/240V split-phase power, it supports essential home loads, selected 240V appliances, solar self-consumption, and larger backup circuits when properly sized and professionally installed.
With dual MPPT solar input up to 6000W + 6000W, 12,000W rated split-phase output, 18,000VA peak power, and support for 48V lithium or lead-acid batteries, this inverter is designed for homeowners, farms, garages, workshops, and remote properties that need reliable backup power.
When the Grid Fails, Solar Alone Is Not Enough
Don't let the next storm leave your family in the dark. When the grid fails, wildfires spread, or severe weather hits, the EASUN SGR-12KW keeps your home powered seamlessly — so life keeps running without missing a beat. A hybrid inverter with solar and battery storage helps turn your PV array, 48V battery bank, utility power, and generator input into one backup-ready power system.
Home Backup During Outages
Helps keep essential loads such as refrigerators, lights, Wi-Fi, sump pumps, security systems, and selected kitchen appliances running when paired with the right battery capacity.
Solar Self-Consumption
Store extra solar energy in 48V batteries and use it later when your home needs power most, especially during evening usage or high-rate periods.
Off-Grid Cabin, Farm & Workshop Power
Suitable for cabins, rural homes, farms, garages, and workshops where grid access is limited, expensive, or unreliable.
Batteryless Daytime Solar Use
Supports batteryless operation, allowing PV and utility power to supply loads before adding battery storage later.
One Hybrid Inverter for Solar, Battery, Grid, and Generator Power
The EASUN SGR-12KW is designed as the control center of a residential solar backup system. It converts DC power from solar panels and 48V batteries into usable AC power, manages charging and discharging, supports generator input, and allows flexible operating priorities based on real energy needs.
Why Choose the EASUN SGR-12KW 12kW Hybrid Inverter?
U.S. 120/240V Split-Phase Output
Supports 120Vac L1/N, 120Vac L2/N, and 240Vac L1/L2 split-phase output for U.S. home backup and selected 240V loads.
12kW Rated Output + 18kVA Peak Power
Delivers up to 12,000W split-phase rated output and up to 18,000VA peak power for demanding startup loads, pumps, tools, and larger backup systems.
Dual MPPT Solar Input, Up to 12kW PV
Two independent MPPT trackers support up to 6000W + 6000W PV input, giving installers flexibility across different roof angles and solar strings.
48V Lithium and Lead-Acid Battery Support
Works with 48V lithium and lead-acid battery systems, with adjustable battery settings and RS485/CAN BMS communication for compatible lithium batteries.
Generator Input for Extended Backup
Generator input adds another backup layer for long outages, off-grid properties, rural homes, and farms.
CT Zero-Export Control
Supports CT-based zero-export control for solar self-consumption setups where users want to reduce or prevent backfeed to the grid.
10ms Typical Backup Transfer
Switches from bypass to inverter mode in about 10ms typical transfer time, helping common household loads continue running with minimal interruption.
Parallel Expansion Up to 6 Units
Supported parallel versions can connect up to 6 units for larger homes, farms, workshops, or light commercial backup systems.
Built for Real U.S. Home Energy Scenarios
What Can a 12kW Hybrid Inverter Power?
Actual performance depends on battery capacity, solar array size, wiring design, appliance surge power, and installation setup. With the right system design, the EASUN SGR-12KW can support a wide range of essential and high-demand loads.
Essential Backup Loads
Refrigerator, freezer, lights, Wi-Fi router, phone charging, security system, TV, and garage door opener.
Home Protection Loads
Sump pump, well pump, medical device backup, communication equipment, and emergency lighting.
Daily Home Loads
Microwave, coffee maker, washing machine, dishwasher, laptop, office equipment, and small kitchen appliances.
Larger Loads
Power tools, workshop equipment, mini-split AC, selected 240V appliances, water pump, and garage or farm equipment.
Choose the Right Solar and Battery Setup
Starter Backup System
Best for short outages and essential backup needs. Recommended with a 5kWh–10kWh 48V battery and essential load panel.
Extended Home Backup System
A stronger setup for overnight backup, solar self-consumption, and daily energy savings with 10kWh–20kWh battery storage.
Off-Grid / Rural Property System
Designed for farms, cabins, garages, warehouses, and remote properties where grid power is limited or unreliable.
Large Expansion System
Supported parallel versions can expand from 2 to 6 units, reaching up to 72kW system capacity with professional electrical design.
Why Upgrade From a Smaller Inverter or Gas Generator?
| Comparison | EASUN SGR-12KW Hybrid Inverter | Small 3–6kW Inverter | Gas Generator |
|---|---|---|---|
| Output Capacity | 12kW split-phase | Best for basic loads | Depends on model |
| 120/240V Support | Supported | Often limited | Some models support it |
| Solar Charging | Dual MPPT, up to 12kW PV | Smaller PV capacity | Not supported |
| Battery Backup | Supports 48V batteries | Limited capacity | Not applicable |
| Outage Transfer | 10ms typical | Varies by model | Usually manual |
| Fuel Dependence | Solar + battery + optional generator | Solar + battery | Requires gasoline or propane |
EASUN SGR-12KW Technical Specifications
| Model | EASUN SGR-12KW |
|---|---|
| Inverter Type | 48V Hybrid Solar Inverter |
| AC Output | 120/240V Split-Phase |
| Rated Output Power | 12000W split phase / 7200W single phase |
| Output Waveform | Pure Sine Wave |
| Peak Power | Up to 18000VA |
| Motor Load Capability | 6HP |
| Transfer Time | 10ms typical |
| Battery Voltage | 51.2V rated |
| Battery Voltage Range | 40–58.6Vdc |
| Battery Type | Lead-acid or lithium battery |
| AC Charging Current | Up to 160A |
| Hybrid Charging Current | 0–220A |
| MPPT Channels | 2 |
| Max PV Input Power | 6000W + 6000W |
| Max PV Open Circuit Voltage | 500Vdc |
| MPPT Voltage Range | 90–450Vdc |
| Max PV Input Current | 22A + 22A |
| Parallel Support | Up to 6 units on supported parallel version |
| Max Parallel System | Up to 72kW |
| Communication | USB / RS485 / WiFi / Dry Contact |
| Operating Temperature | -10°C to 55°C, derating above 45°C |
| Noise | ≤60dB |
| Cooling | Forced air cooling, variable-speed fan |
| Certification Listed in Spec | UL STD.1741 |
| EMC | FCC Part 15 Class B |
| Product Size | 580 × 359 × 127mm |
| Net Weight | 15kg |
Safety & Compliance Note
The EASUN SGR-12KW is a high-power electrical device and should be installed by a qualified electrician or solar professional. Proper installation helps ensure correct breaker sizing, battery protection, solar string design, grounding, transfer switching, CT installation, and compliance with local electrical code.
For grid-connected or zero-export setups, always confirm local utility and permitting requirements before installation. Utility input and generator input should not be connected to AC input at the same time.
To support your installation, we provide comprehensive wiring diagrams and detailed user manuals. If you are choosing DIY, please ensure your setup matches our official schematics.
Certification Information
EASUN SGR-12KW Hybrid Solar Inverter FAQ
Can this inverter power a whole home?
It can support many essential and larger home loads, but whole-home backup depends on battery capacity, wiring design, appliance startup power, and which circuits you want to back up. A professional load calculation is recommended.
Does it support 120/240V split-phase output?
Yes. The EASUN SGR-12KW supports 120/240V split-phase output for U.S.-standard residential power systems.
Can I use it without batteries?
Yes. The inverter supports batteryless operation, allowing PV and grid power to supply loads. Batteries are recommended for outage backup and nighttime solar use.
What battery types does it support?
It supports 48V lead-acid and lithium batteries, with a rated battery input voltage of 51.2V and a battery voltage range of 40–58.6Vdc.
How much solar can I connect?
The inverter supports dual MPPT input with up to 6000W + 6000W PV input, 500Vdc maximum PV open circuit voltage, and 90–450Vdc MPPT voltage range.
Can it work with a generator?
Yes. The EASUN SGR-12KW supports generator input. Utility input and generator input should not be connected to AC input at the same time.
How fast does it switch during a power outage?
The typical transfer time is about 10ms, helping many common household loads continue running with minimal interruption.
Can I connect multiple units together?
Supported parallel versions can connect up to 6 units in parallel, expanding the system up to 72kW for larger homes, farms, workshops, or light commercial backup systems.
Does it support zero export?
Yes. The product supports CT zero-export control. Local grid connection, permitting, and utility rules vary by location, so users should confirm requirements before installation.
Is this suitable for off-grid cabins?
Yes. It is suitable for off-grid cabins, farms, garages, workshops, and remote properties when paired with the right solar array, 48V battery bank, and optional generator backup.