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Big Battery EG4 12kW (24kPV) OFF-GRID INVERTER - INV030

Big Battery EG4 12kW (24kPV) OFF-GRID INVERTER - INV030

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Big Battery EG4 12kW (24kPV) OFF-GRID INVERTER - INV030

This cutting-edge 12000XP All-in-One Inverter & Charger from EG4 is a multifunctional, split-phase off-grid and solar inverter, capable of supporting even the most robust home power systems with a rated power of 12000W and the ability to handle PV arrays of up to 24000W. This high-tech inverter features a built-in switchgear for simple, secure installations, and comes equipped with an in-depth LCD touch screen interface and remote monitoring capabilities for enhanced visibility and a smoother user experience, as well as 2 MPPT inputs, built-in circuit breakers, and an integrated UPS module for seamless input switching in only 15 – 30ms. Plus, by leaving behind outdated transformer-based designs, the 12000XP inverter is able to remain lightweight and energy-efficient, consuming minimal power during idling periods, without having to compromise on surge capacity or line imbalance capabilities.

The 12000XP inverter supports a variety of working modes and system configurations, so whether you’re looking to enhance your home’s solar backup system, or upgrade your homestead’s off-grid ESS setup, this inverter can handle a wide range of home power applications. Plus, through its smart load control, AC coupling abilities, and peak shaving function, you can meet your power needs and protect your home against unstable grids and rolling blackouts, while seeing huge savings each month on your electric bill. Order today to optimize your home’s power with the state-of-the-art 12000XP All-in-One Inverter & Charger from EG4.

Specifications
Nominal AC Voltage 120/240VAC
**Frequency (Grid Generator)**
**Max Continuous AC Current (Grid Generator)**
Max AC Input Power 24,000 W
**AC Bypass (Grid Generator)**
Recommended Generator Capacity 6,000 – 15,000 W
Output Voltage 120/240VAC
Output Frequency 60 Hz (Default)
Max Continuous Output Current 50A @ 240VAC
Nominal Output Power (without PV) 12,000 W @ 240V
Nominal Output Power (with PV) 12,000 W @ 240V
Max Continuous Wattage 12,000 W (L1/L2)
Surge Capacity 18,000 W (5 sec)
Power Factor 0.99
Total Harmonic Distortion (THD) <3%
Switching Time <10 ms (Single)
Number of MPPTs (Inputs per MPPT) 2 (2)
Max Input Current (per MPPT) 35A / 35A
Max Short Circuit Input Current (per MPPT) 44A / 44A
DC Input Voltage Range 100 – 480 VDC
Min Start Up Voltage 100 VDC
MPPT Operating Voltage Range 120 – 385 VDC
Nominal MPPT Voltage 320 VDC
Max Utilized PV Power 24,000 W (12,000 W per MPPT)
Max Recommended PV Input 28,000 W (14,000 W per MPPT)
Max Efficiency 99% (MPPT) / 93.5% (PV→Loads) / 92.8% (PV→Battery) / 92.5% (AC→Battery) / 90.2% (Battery→Loads)
Idle Consumption (Standby Mode) <70W
Nominal Battery Voltage 48 VDC
Battery Voltage Range 46.4 – 60 VDC
Max Charge / Discharge Current 250A
Max Charge / Discharge Power 12,000 W
DC Cut-Off Voltage 59 VDC
Recommended Battery Capacity per Inverter >400 Ah
Max Parallel Connections 6
Protection Rating IP20
Communication Interface RS485 / CANBus / WiFi
Operating Temperature (Full Load) 32ºF – 113ºF (0ºC – 45ºC)
Storage Temperature 5ºF – 140ºF (-15ºC – 60ºC)
Altitude <6,561 ft (2000 m)
Relative Humidity (Non-Condensing) 5 – 95%
Typical Noise Emission <60 dB
Cooling Method Fan
Dimensions
Weight 104.7 lbs (47.5 kg)
Depth 5.9 in (150 mm)
Width 20.9 in (530 mm)
Height 34.25 in (870 mm)
What our Experts Think
  • Powerful all-in-one off-grid inverter — Delivers up to 12 kW split-phase AC output with up to 24 kW solar PV input, ideal for homes, cabins, or small commercial systems.

  • Flexible power modes — Supports fully off-grid operation, battery-based backup, or hybrid/grid-connected setups, with generator input and AC coupling for reliable backup.

  • High surge and load handling — Provides continuous 12 kW output with surge capacity for heavy appliances, motors, and air-conditioning.

  • Scalable and expandable — Can be paralleled with multiple units for larger systems, allowing capacity growth as energy needs increase.

  • Smart control and monitoring — Integrated RS485, CAN, and Wi-Fi enable remote monitoring, performance tracking, and smooth integration with modern battery systems.

Q&A

Q: What is the BigBattery EG4 12kW (24kPV) Off-Grid Inverter (INV030)?
A: A 48 V split-phase off-grid inverter, charger, and solar controller capable of delivering up to 12 kW AC power while utilizing up to 24 kW of solar PV input.

Q: What power and solar input does it support?
A: Handles up to 24 kW of DC solar input and provides 12 kW continuous AC output.

Q: What features does it include?
A: Dual MPPT inputs for efficient solar energy harvesting, built-in breakers, AC bypass capability for generators or grid, UPS-style fast transfer switching, smart load control, and peak shaving for energy savings.

Q: What systems is it designed for?
A: Off-grid homes, cabins, small commercial setups, and backup power systems requiring reliable 12 kW output with strong solar support.

Q: Is the system expandable?
A: Yes, multiple units can be paralleled to scale output capacity according to system needs.

Q: What battery systems does it support?
A: Compatible with 48 V battery banks, including lithium or lead-acid systems, sized appropriately to support full inverter performance.

Q: What are the main benefits?
A: Provides high continuous power, maximizes solar energy use, allows generator or grid bypass for redundancy, supports backup/UPS functionality, and offers flexible configuration for hybrid, off-grid, or backup energy setups.

Maintenance Tips
  • Install the inverter in a cool, dry, and well-ventilated area to ensure stable performance and prevent overheating.

  • Regularly inspect all wiring, terminals, and connections for looseness, corrosion, or damage to maintain safe off-grid operation.

  • Keep the exterior clean and dust-free with a soft, dry cloth to prevent heat accumulation.

  • Avoid exposure to direct sunlight, moisture, and extreme temperatures to preserve internal components.

  • Ensure firmware is up-to-date for maximum efficiency and compatibility with connected PV and battery systems.

  • Disconnect from power sources during extended non-use to protect internal electronics.