Product Summary:

The EG4 12kPV Hybrid Inverter is a powerful, all-in-one solution designed for both on-grid and off-grid energy systems. Delivering 8,000W of continuous split-phase power with support for up to 12,000W PV input, it provides efficient, reliable performance for residential solar and backup applications.

 

Featuring dual MPPT inputs, the 12kPV maximizes solar production while seamlessly managing energy from solar, battery, and grid sources. Built-in breakers, fast UPS transfer (~20ms), and advanced system protections ensure uninterrupted operation and safe, dependable performance.

 

Designed with ETL & cETL certifications and built for durability, transformer-free architecture, the inverter offers lightweight, energy-efficient performance without sacrificing power or reliability. With smart features like load control, AC coupling, and peak shaving, it helps reduce energy costs while providing backup protection during outages.

Ships From: Texas, USA
Warranty: 10 Years
Support: Lifetime USA-Based Tech Support

 

Compatibility

UL 9540 Certified + Closed-Loop Communication (Grid-Tied + Off Grid):

  • BigBattery ETHOS
  • EG4 Batteries

Power Compatibility:

  • Works with 48V battery systems
  • Supports grid-tied, hybrid, and off-grid installations
  • AC coupling compatible for system upgrades and retrofits

Key Features

  • 8,000W Output Power – Reliable energy for residential and backup applications
  • 12,000W PV Input – Efficient solar integration with dual MPPT optimization
  • Split-Phase 120/240V Output – Powers both standard and heavy-duty appliances
  • Dual MPPT Inputs – Maximizes solar production across multiple arrays
  • UPS Backup (~20ms) – Fast, seamless transition during outages
  • Transformer-Free Design – Lightweight, efficient, and easy to install
  • Built-In Breakers & Safety – Simplifies installation and enhances protection
  • Smart Energy Management – Supports load control, AC coupling, and peak shaving
  • Remote Monitoring & Control – Track system performance and manage settings from anywhere
  • User-Friendly LCD Interface – Simple setup and system configuration
  • Plug-and-Play Installation – Fast and straightforward system setup
  • Maintenance-Free Operation – No routine servicing required

A compact, efficient hybrid inverter built for flexibility, reliability, and long-term energy independence.

simple system expansion
EG4 12kpv
UL Certified
EG4 12kpv
Power stays on in rain and storm
GridBoss
EG4 lineup

.

See More On YouTube

Inverter Downloads

SKU#:INV028
Spec Sheet:DownloadDOWNLOAD
User Manual:DownloadDOWNLOAD
Troubleshoot Maintenance Guide:DownloadDOWNLOAD
UL1741 – Certificate of Compliance:DownloadDOWNLOAD
UL1741 PCS CRD – Certificate of Conformity:DownloadDOWNLOAD
CEC Listing- EG4 12kPv:Go to linkGO TO LINK

Inverter Specifications

Nominal AC Voltage:120/240VAC; 120/208VAC (L1/L2/N required)
Frequency:50/60Hz
Max. AC Input Power:8000W
Min. Generator Size:>5000W
Max. Gen | Grid Passthrough Current:80A | 80A
Max. Output Current:33.3A @ 240VAC | 38.5A @ 208VAC
Output Voltage:120/240VAC; 120/208VAC
Nominal Power Output:8000W
Output Frequency:50/60Hz
Power Factor:0.99 @ Full Load
Reactive Power Adjust Range:±0.8
Max Cont. Line Wattage:4000W
Peak Power:0.5 s / 1 s / 1 min / 12 min: 16kW / 12kW / 10kW / 8.8kW
Operating Frequency:50/60Hz
THD (V) @ Full Load:<3%
Transfer Time:Single: 20 ms – Default, 10 ms – Selectable; Parallel: 20 ms
Number of MPPTs:2
Inputs per MPPT:2
Max. Usable Input Current:25/25A; 25A per MPPT | 41.6A in total
Max. Short Circuit Input Current:31/31A
DC Input Voltage Range*:100–600 VDC
Unit Startup Voltage:100 VDC
MPPT Operating Voltage Range**:120–500 VDC
Nominal MPPT Voltage:360 VDC
MPPT Voltage High Protection***:550 VDC
Maximum Utilized Solar Power:12000W
Recommended Maximum Solar Input:15000W
Maximum Efficiency (PV → Grid):97.5%
Maximum Efficiency (Battery → Grid):94%
CEC Weighted Efficiency:96.4%
Maximum Efficiency (PV → Battery):99.9%
Idle Consumption (Standby Mode):<55W
Compatible Battery Types:Lead-Acid / Lithium
Max. Charge/Discharge Current:167A @ 48 VDC
Nominal Voltage:48 VDC
Voltage Range:40–60 VDC (Lithium); 40–60 VDC (Lead-Acid)
Recommended Battery Capacity per Inverter:>200Ah
Max. Units in Parallel:10
Product Dimensions (H×W×D):29.5×20.5×11.2 in (750×520×285 mm)
Unit Weight:110 lbs. (50 kg)
Design Topology:High Frequency – Transformerless
Relative Humidity:0–100%
Operating Altitude:<2000m (<6561 ft)
Operating Ambient Temperature Range:-13°F – 140°F (-25°C – 60°C)
Storage Ambient Temperature Range:-13°F – 140°F (-25°C – 60°C)
Noise Emission (Typical):<50 dB @ 3 ft
Locked Rotor Amps (LRA):195A
Communication Interface:RS485/Wi-Fi/CAN
Standard Warranty**:10-year standard warranty
Enclosure Rating:NEMA 4X
Protections:PV Arc Fault Protection, PV Ground Fault Protection, PV Reverse Polarity Protection, Pole Sensitive Leakage Current Monitoring Unit, Surge Protection Device, integrated PV disconnect

Compare Inverter

10-Year EG4 Manufacturer Warranty

simple system expansion
EG4 12kpv
UL Certified
EG4 12kpv
Power stays on in rain and storm
GridBoss
EG4 lineup

.

See More On YouTube

Inverter Downloads

SKU#:INV028
Spec Sheet:DownloadDOWNLOAD
User Manual:DownloadDOWNLOAD
Troubleshoot Maintenance Guide:DownloadDOWNLOAD
UL1741 – Certificate of Compliance:DownloadDOWNLOAD
UL1741 PCS CRD – Certificate of Conformity:DownloadDOWNLOAD
CEC Listing- EG4 12kPv:Go to linkGO TO LINK

Inverter Specifications

Nominal AC Voltage:120/240VAC; 120/208VAC (L1/L2/N required)
Frequency:50/60Hz
Max. AC Input Power:8000W
Min. Generator Size:>5000W
Max. Gen | Grid Passthrough Current:80A | 80A
Max. Output Current:33.3A @ 240VAC | 38.5A @ 208VAC
Output Voltage:120/240VAC; 120/208VAC
Nominal Power Output:8000W
Output Frequency:50/60Hz
Power Factor:0.99 @ Full Load
Reactive Power Adjust Range:±0.8
Max Cont. Line Wattage:4000W
Peak Power:0.5 s / 1 s / 1 min / 12 min: 16kW / 12kW / 10kW / 8.8kW
Operating Frequency:50/60Hz
THD (V) @ Full Load:<3%
Transfer Time:Single: 20 ms – Default, 10 ms – Selectable; Parallel: 20 ms
Number of MPPTs:2
Inputs per MPPT:2
Max. Usable Input Current:25/25A; 25A per MPPT | 41.6A in total
Max. Short Circuit Input Current:31/31A
DC Input Voltage Range*:100–600 VDC
Unit Startup Voltage:100 VDC
MPPT Operating Voltage Range**:120–500 VDC
Nominal MPPT Voltage:360 VDC
MPPT Voltage High Protection***:550 VDC
Maximum Utilized Solar Power:12000W
Recommended Maximum Solar Input:15000W
Maximum Efficiency (PV → Grid):97.5%
Maximum Efficiency (Battery → Grid):94%
CEC Weighted Efficiency:96.4%
Maximum Efficiency (PV → Battery):99.9%
Idle Consumption (Standby Mode):<55W
Compatible Battery Types:Lead-Acid / Lithium
Max. Charge/Discharge Current:167A @ 48 VDC
Nominal Voltage:48 VDC
Voltage Range:40–60 VDC (Lithium); 40–60 VDC (Lead-Acid)
Recommended Battery Capacity per Inverter:>200Ah
Max. Units in Parallel:10
Product Dimensions (H×W×D):29.5×20.5×11.2 in (750×520×285 mm)
Unit Weight:110 lbs. (50 kg)
Design Topology:High Frequency – Transformerless
Relative Humidity:0–100%
Operating Altitude:<2000m (<6561 ft)
Operating Ambient Temperature Range:-13°F – 140°F (-25°C – 60°C)
Storage Ambient Temperature Range:-13°F – 140°F (-25°C – 60°C)
Noise Emission (Typical):<50 dB @ 3 ft
Locked Rotor Amps (LRA):195A
Communication Interface:RS485/Wi-Fi/CAN
Standard Warranty**:10-year standard warranty
Enclosure Rating:NEMA 4X
Protections:PV Arc Fault Protection, PV Ground Fault Protection, PV Reverse Polarity Protection, Pole Sensitive Leakage Current Monitoring Unit, Surge Protection Device, integrated PV disconnect

Compare Inverter

10-Year EG4 Manufacturer Warranty

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