EG4 FlexBOSS18 13kW AC Hybrid Inverter | 48V Split Phase | 18kW PV Input
The EG4 FlexBOSS18 is a powerful hybrid inverter designed to optimize solar energy conversion for both off-grid and grid-tied applications. With an impressive 13kW AC output and 18kW PV input, this inverter can handle high-demand loads with ease. Its 120V/240V split-phase capability makes it ideal for residential and commercial use, providing uninterrupted power with seamless battery integration.
Revolutionary Power Performance
- 16kW continuous output with solar input – 23% more power than previous models
- 22kW maximum PV input across enhanced triple MPPTs for maximum solar harvest
- 14kW battery-only power output providing robust backup for essential loads
Intelligent Energy Ecosystem
- Dynamic operating modes: grid-tied, off-grid, and smart hybrid configurations
- Advanced AI-powered load management with predictive efficiency algorithms
- Seamless integration with the new EG4 GridBOSS PRO for complete energy ecosystem control
Industry-Leading Safety & Compliance
- UL1741 SB certified for grid operation including advanced grid support functions
- Integrated Smart RSD+ exceeds NEC 690.12 requirements with module-level monitoring
- Comprehensive protection suite with self-diagnostic capabilities and remote troubleshooting
Superior Efficiency & Economics
- 800VDC PV input capacity reduces balance of system costs and line losses
- Triple MPPT technology with shade mitigation maximizes production in all conditions
- Battery-to-grid efficiency of 96.5 percent and solar-to-grid efficiency of 98.2 percent
Simplified Installation & Enhanced Monitoring
- Toolless mounting system with quick-connect terminals reduces installation time by 40%
- Integrated 5G/Wi-Fi/Ethernet connectivity with local backup of monitoring data
- 120A grid bypass with zero-transfer time for critical loads
What’s Included
Everything you need is included with your product.
- EG4 FlexBOSS18 13kW AC Hybrid Inverter | 48V Split Phase | 18kW PV Input
- User Manual
EG4 FlexBOSS18 13kW AC Hybrid Inverter Specifications
AC OUTPUT/INPUT
| Specification | Details |
| NOMINAL GRID VOLTAGE (INPUT & OUTPUT) | 240 VAC | 208 VAC |
| FREQUENCY | 60Hz Default (50Hz Capable) |
| MAX. CONTINUOUS DISCHARGE RATE | 10kW |
| MAX. APPARENT POWER | 13kW (54A @240V) | 11.2kW (54A @208V |
| MAX. CONTINUOUS CURRENT @ 45°C | 54A |
| MAX. CONTINUOUS DISCHARGE W/ PV & GRID ONLY @ 45°C | 10kW | 13kW |
| POWER FACTOR (OUTPUT) | 0.6 – 1.0 |
| MAX. OUTPUT FAULT CURRENT | 156A peak @ 100us |
| MAX. PASSTHROUGH FROM GRID | 90A |
| THD V (VOLTAGE) | <3% @ full load |
| THD I (CURRENT) | <5% @ full load |
| BACKUP SWITCHING TIME (TRANSFER TIME) | 20ms (Default), 10ms (Configurable), 20ms (Parallel) |
| OPEN LOOP RESPONSE TIME (OLRT) | Pending |
| TIME TO STEADY STATE | Pending |
| MAX. CONTINUOUS PER-LINE WATTAGE | 6.5kW |
EFFICIENCY
| Specification | Details |
| BATTERY TO GRID/LOAD | 94% |
| PV TO GRID/LOAD | 97.5% |
| PV TO BATTERY | 94.5% |
| CEC EFFICIENCY (CALIFORNIA ENERGY COMMISSION) | Pending |
SOLAR TECHNICAL SPECS
| Specification | Details |
| MAX. SOLAR STC INPUT POWER | 18kW |
| MAX. PV INPUT VOLTAGE | 600 VDC |
| MPPT VOLTAGE RANGE | 120V – 440 VDC |
| MPPT FULL POWER VOLTAGE RANGE | 250V – 440 VDC |
| # OF MPPTS | # OF STRINGS PER MPPT | 2/2 |
| MAX. CURRENT PER MPPT | 26A/26A |
| MAX. SHORT-CIRCUIT CURRENT RATING PER MPPT | 31A/31A |
| NOMINAL MPPT VOLTAGE | 360 VDC |
| UNIT STARTUP VOLTAGE | 200 VDC |
BATTERY TECHNICAL SPECS
| Specification | Details |
| COMPATIBLE BATTERY TECHNOLOGIES | Lithium/Lead-acid |
| OPERATING VOLTAGE | 40 – 60 VDC |
| NOMINAL VOLTAGE | 48 VDC |
| MAX. CHARGE/DISCHARGE CURRENT | 208A (10kW) |
| BATTERY COMMUNICATION PROTOCOL | CAN/RS485 |
ENVIRONMENTAL
| Specification | Details |
| OPERATING TEMPERATURE RANGE | -13°F – 140°F (-25°C – 60°C); > 45°C Derating |
| OPERATING HUMIDITY | 0 – 100% |
| MAX. ALTITUDE OF OPERATION | <2000m (<6561ft) |
| ENCLOSURE RATING | NEMA 4X |
| STORAGE TEMPERATURE RATING | -13°F – 140°F (-25°C – 60°C) |
| COOLING (OR COOLING CONCEPT) | Fans |
GENERAL SPECIFICATIONS
| Specification | Details |
| DIMENSIONS | 29.52 x 20.47 x 10.43 in. (750 x 520 x 265 mm) |
| TOTAL WEIGHT | 115 lbs. (52 kg) |
| MOUNTING OPTION(S) | Wall |
| USER INTERFACE | APP/WEB/LCD (optional) |
| SCALABILITY | 10 |
| INVERTER IDLE CONSUMPTION @ NO LOAD @ (*TEMP) | <60W (Standby) |
| NOISE | <50dB @ 3 ft |
| LOCKED ROTOR AMPS (LRA) | 195A |
Frequently-Asked Questions
Can the EG4 FlexBOSS18 be used for both off-grid and grid-tied applications?
Yes! This hybrid inverter can operate as a standalone off-grid system or integrate with the grid for enhanced energy efficiency.
What battery types are compatible with the EG4 FlexBOSS18?
It is designed to work with 48V LiFePO4 batteries, ensuring optimal performance and longevity.
How many inverters can I connect in parallel?
You can parallel multiple units to increase power output for larger energy demands.
Does it support remote monitoring?
Yes, the Wi-Fi and RS485 connectivity allow real-time monitoring and control via the EG4 app.
Manual
- EG4 FlexBOSS18 Manual
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