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Fortress Power > 6,500 Watt 48 Volt Split / Single Phase Off-Grid Solar Inverter
Manufacturer Part Number:
Solo 6.5kW
Reliable, Flexible Power for Off-Grid & Backup Applications
The Fortress Power Solo 6.5kW is a versatile 6.5kW split/single-phase inverter designed for backup power, o -grid and grid-tied applications. With support for both grid and generator input, a built-in 140A solar charge controller, and intelligent switching, it delivers reliable performance in any environment. Time-of-use scheduling, optional CTs for added safety, and parallel support for up to six units (39kW) make it ideal for o -grid homes, small apartments and hybrid solar systems.
Supported Applications
- Battery Backup
- Non-Export Grid-Tied (Backup, Self Supply)
- Off-Grid
- Self-Consumption
- Generator
Key Product Highlights
- Rated Output Power: 6,500W
- Max. Output Power: 13,000W
- Rated Output Voltage: 120/240 Vac (single/split-phase)
- Frequency: 50/60Hz
- Rated Battery Voltage: 48V
- Max. Input Short Circuit Current: 18A+18A
- No. of MPPT: 1+1
Specifications
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General Data
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Weight
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50.71 lbs
(23 kg)
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Dimensions (H x W x D)
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27 x 16.1 x 6.1 in
(686 x 410 x 155 mm)
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Ingress Protection
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IP20 (for indoor use only)
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Operating Temperature
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14 ºF - 131 ºF (-10 ºC - 55 ºC), >45 ºC derating
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Noise
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<60db
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Cooling
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Fan
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Inverter Output
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Rated Output Power
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6,500 Watts
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Maximum Peak Power
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13,000 VA
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Rated Output Voltage
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120/240 VAC (Single/Split-Phase)120VAC (Single Phase) 208VAC (Three Phase)*
* Adjustable
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Rated Frequency
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50/60Hz*
* Adjustable
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Output Wave
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Pure Sine Wave
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Switching Time
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10 ms (typical value)
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Parallel Number
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6
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Battery Parameters
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Compatible Battery Type
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Lithium-ion battery / lead-acid battery / user- defined battery*
* Adjustable
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Rated Battery Voltage
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48V
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Battery Voltage Range
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40 Vdc-60 Vdc*
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Maximum Grid/Generator Charge Current
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9,600W / 4,000W
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Maximum Battery Charge Current
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140 A DC*
* Adjustable
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PV Input
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MPPT Channel Number
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2
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Maximum Input Power
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5,000W + 5,000W
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Maximum Input Short Circuit Current
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18 / 18 A
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Maximum Open Circuit Voltage
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550 Vdc / 550Vdc
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MPPT Operating Voltage Range
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150 Vdc - 450 Vdc
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Grid / Generator Input
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Input Phase Voltage Range
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65 VAC - 140 VAC
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Grid Frequency Range
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50/60 Hz
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Bypass Overload Current
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40A
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Communication
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Built-in Interface
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RS485 / CAN / USB / dry contact*
* Adjustable
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External Module (Optional)
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Wi-Fi / GPRS*
* Adjustable
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Standard & Certification
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Safety Standards
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IEC62109-1, IEC62109-2, and UL1741
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EMC
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EN61000-6-1, EN61000-6-3, and FCC 15 class B
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RoHS
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Yes
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Efficiency
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MPPT Tracking Efficiency
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99.9%
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Maximum Efficiency of Battery Inverter
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93%
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Features
Maximize Performance, Flexibility, and Control
- High-Capacity Solar Charging
The built-in solar charge controller supports up to 140A, maximizing solar input for faster, more efficient battery charging—ideal for large off-grid systems or high-usage households.
- Dual Power Source Compatibility
Supports grid and generator input with intelligent switching, giving you seamless power management and uninterrupted operation during outages or low solar production.
- Time-of-Use Optimization
Advanced time-sharing functionality allows users to schedule charge and discharge cycles, optimizing energy usage and reducing reliance on expensive utility rates.
- Safe & Stable Operation with Optional CT
Optional current transformers (CTs) enhance system safety and reliability by monitoring current flow and enabling precise load control and protection.
- Scalable Up to 39kW
Parallel up to six EV6500-S units for a total output of 39kW, making it a powerful choice for large homes, small businesses, and off-grid compounds.
- Versatile Application Support
Designed for a range of energy scenarios including Backup Power, Off-Grid Living, Peak Shaving, Net Metering, Smart Load Control, and Microgrid Installations—all in one rugged and intelligent package.
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