Reliability Safety Capacity
(25-40)K-US
-LSW-SPRT = Sunspec Transmitter
-LSW-RSS = Tigo transmitter
-SW = No Transmitter
(25-40)k three phase series string inverters adopt a 4 MPPT design to provide a more flexible configuration scheme with a smaller environmental impact rate and higher generation efficiency. These NEMA 4X inverters come standard with a separable wiring box which allows a shorter install time and easy operation and maintenance.


25-40kW Three Phase Inverter
Leading Features
- 7” LCD color display
- 10 Year Standard Warranty with extension options
- Transformer-less three phase design with 480Vac output
- Web-based data monitoring with downloadable Solis Mobile App
- 98.6% efficient (98.3% CEC) with ultra-low start up voltage
- Designed for all commercial, industrial and utility scale applications
- Integrated Arc Fault Circuit Interrupt (AFCI) option
- Compact and lightweight design inside a corrosion-resistant NEMA 4X enclosure

Technical Specifications
Input DC
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Recommended max. PV power:
37500W
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Max. input voltage: 1000V
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Rated voltage: 700V
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Start-up voltage: 350V
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MPPT voltage range: 200-800V
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Max. input current: 4*18A
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Max. short circuit current: 4*28.1A
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MPPT number: 4
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Max. input strings number: 8
Protection
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DC reverse-polarity protection:Yes
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Ground fault monitoring: Yes
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Anti-islanding protection: Yes
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Integrated AFCI (DC arc-fault circuit protection):Yes
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Integrated DC switch: Yes
Output AC
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Rated output power: 25000W
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Max. apparent output power:25000VA
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Max. output power: 25000W
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Rated grid voltage: 3Ф/PE, 480V
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Rated grid frequency: 60Hz
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Max. output current: 30.1A
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Power Factor:>0.99 (0.8 leading – 0.8 lagging)
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THDi: <3%
Features
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RGM: optional
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Communication protocol:Modbus RTU (Sunspec compliant)
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Communication:Optional cellular and Wi-Fi
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Connections:2 knockout for 1″conduit at bottom, 4 knockout for3/4″conduit at side and back
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Display: LCD,2×20 Z.
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Warranty:10 Years standard (extendable to 20 years)
General Data
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Dimensions (W*H*D):21.1*45.9*14.1 in (535*1167*358 mm)
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Weight:127 lbs (57.7 kgs)/26.5 lbs (12kgs)
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Topology: Transformerless
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Self consumption: <1W (night )
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Relative humidity: 0-100%
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Operating ambient temperature range:-13 °F to 140 °F (-25°C to 60°C)
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Storage environment:-13 °F to 176 °F (-25°C to 80°C)
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Ingress protection: NEMA 4X
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Cooling concept: Natural convection
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Max. operation altitude: 13,120 ft (4000 m)
Efficiency
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Max. efficiency: 98.6%
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CEC efficiency: 98.3%