Enphase M250 Microinverter

Last Updated: September 14, 2017 13:41

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Product Details

The Enphase Energy Microinverter System improves energy harvest, increases reliability, and dramatically simplifies design, installation, and management of solar power systems.

The Enphase System includes the microinverter, the Envoy Communications Gateway and Enlighten, Enphase’s monitoring and analysis software.

We can design solar pv systems. Email Tom Edwards for more information via tom.edwards@solfex.co.uk

Features & Benefits

Features of the Enphase M250 Microinverter

  • Optimised for higher-power modules

  • Maximises energy production

  • Minimises impact of shading, dust, and debris

  • 4th-generation product

  • More than one million hours of testing

  • System availability greater than 99.8%

  • Quick and simple design, installation, and management

  • 24/7 monitoring and analysis

  • Low-voltage DC reduces fire risk

  • No single point of system failure

  • Easy installation with Engage Cable

Technical Specification

INPUT DATA (DC)M250-60-230-S22
Recommended input power (STC)210 - 310 W
Maximum input DC voltage48 V
Peak power tracking voltage27 V - 39 V
Operating range16 V - 48 V
Min/Max start voltage22 V / 48 V
Max DC short circuit current15 A
Max input current10 A
Peak output power258 W
Rated output power250 W
Rated output current1.09 A
Nominal voltage230 V
Nominal frequency50.0 Hz
Power factor>0.95
Maximum units per 20 A branch circuit14 (Ph + N), 42 (3Ph + N)
Maximum units per cable section14 (Ph + N), 24(3Ph + N)


EN 50530 (EU) efficiency95.7%
Static MPPT efficiency (weighted, reference EN50530)99.6%
Dynamic MPPT efficiency (fast irradiation changes, reference EN50530)99.3%
Night time power consumption0.055 W

Mechanical Data

External operating temperature range (ambient)-40ºC to +65ºC
Internal operating temperature range-40ºC to +85ºC
Enclosure environmental ratingOutdoor - IP67
Connector typeMC4
Dimensions (WxHxD)179 mm x 217 mm x 28 mm (with bracket)
Weight1.66 kg
CoolingNatural convection - No fans


CompatibilityCompatible with 60-cell PV modules.
CommunicationPower line
MonitoringEnlighten Manager and MyEnlighten monitoring options
Transformer design High frequency transformers, galvanically isolated
ComplianceAS4777, C10/11, CEI0-21, EN50438, EN62109-1, EN62109-2, ERDF-NOI-RES13E_V5, G59/2, G83/2, VDE-0126-1-1 + A1, VDE AR-N 4105