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Enphase S280 Microinverter Specifications
Enphase Model Number S280

Input Power (DC)
STC Rating 235-365 W
Maximum DC Input 48 V
Peak Power Tracking Voltage 27-37 V
Operating Range 16-48 V
Min/Max Start Voltage 22/48 V
Max DC Short Circuit Current 15 A

Output Power (AC) @208 VAC @240 VAC
Peak output power 280 VA 280 VA
Rated (continuous) output power 270 VA 270 VA
Nominal voltage/range 183-229 V 211-264 V
Power factor 1 / 0.7 leading ... 0.7 lagging 1 / 0.7 leading ... 0.7 lagging

Efficiency @208 VAC @240 VAC
CEC weighted efficiency 96.5 % 97.0 %
Peak inverter efficiency 96.8 % 97.3 %

Enphase S280 Microinverter

SKU enphase-S280
Enphase logo

Enphase Energy S280 Microinverter

Designed for high-powered, 60-cell and 72-cell solar modules, the advanced grid-ready Enphase S280 Microinverter™ is built on the fifth-generation platform and achieves the highest efficiency for module-level power electronics along with cost per watt reduction. With its all-AC approach, the S280 simplifies design and installation for 280 VA installations, and delivers optimal energy harvest. The S280 is compatible with storage systems, including battery management systems.

The Enphase S280 integrates seamlessly with the Enphase Envoy-S™ communications gateway, and Enphase Enlighten™ monitoring and analysis software.

Residential Enphase Microinverter solar system
Low wholesale residential Enphase Microinverter
solar system prices.


  • Optimized for higher-power, 60-cell and 72-cell PV modules
  • Maximizes energy production
  • Minimizes impact of shading, dust, and debris

Simple and Reliable

  • No GEC needed for microinverter
  • No DC design or string calculation required
  • More than 1 million hours of testing
  • Industry-leading warranty, up to 25 years

Advanced Smart Grid Ready

  • Complies with fixed power factor, voltage and frequency ride-through requirements
  • Remote updating to respond to changing grid requirements
  • Configurable for variable grid profiles like HECO (Hawaiian Electric Company) Rule 14H &
    California Rule 21.


Compatible with most higher-power 60-cell and 72-cell PV solar panels.


Power line

Integrated ground

The DC circuit meets the requirements for ungrounded PV arrays in NEC 690.35. Equipment ground is provided in the Engage Cable. No additional GEC or ground is required.


Free lifetime monitoring with Enlighten Manager and MyEnlighten monitoring options


UL1741/IEEE1547, FCC Part 15 Class B, CAN/CSA-C22.2 NO. 0-M91, 0.4-04, and 107.1-01


Contact us toll-free: (877) 297-0014
for expert advice and low wholesale prices.

Complete PV systems with Enphase S280 Microinverters available!

solar system cost


Solar Electric Supply not only supplies the latest Enphase products at a discount price, we also have a low solar system cost for residential and commercial PV systems designed specifically for microinverters.

Systems include microinverters, roof or ground mount, solar panel cables, disconnects and breakers. We support our customers in the US with friendly knowledgeable staff that is here to help with your microinverter solar system questions toll-free at (877) 297-0014.

Enphase Microinverters

Contact us toll-free (877) 297-0014 for professional reviews and the latest low wholesale price on the Enphase S280 Microinverter.