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Enphase energy inverters
Model: M250
Brand: Enphase Energy
Product Type: Inverters
Items: Connector Type: Price:
2930488 MC4


Enphase Energy M250
This new fourth generation micro-inverter has an outstanding 96.5% CEC efficiency, an increased output power of 250W AC and is compatible with 60 cell solar panels up to 300W. Enphase has insulated and isolated the DC conductors from ground removing the need to install a separate grounding electrode conductor (GEC) to each unit resulting in a simplified, safer and more economical installation. Adding Enphase M250's to your system will truly optimize the amount of power gathered.

The M250's also include advanced features to detect ground faults which often go undetected with other micro-inverters. These units are extremely lightweight, weighing in at just over 4 pounds and easy to install with the plug-and-play Engage™ cables.

Enphase Energy has been a trusted name in the solar energy industry, having played a major role in pioneering micro-inverter technology. Micro-inverters will greatly improved overall system reliability by eliminating the single failure point in central inverter systems as well as by greatly reducing the impact of partial system shading, debris and panel failure. The company proudly stands behind the M250 with a solid 25-year limited warranty.

State-of-the-art Monitoring
System owners can easily monitor their array’s performance data via the wall-mounted Envoy display, or from any smart-phone with an internet connection. Utilizing the Envoy communications gateway (see pricing below), Enphase Energy’s Enlighten™ monitoring service uses advanced powerline communications technology to stay in touch with each micro-inverter without additional wiring or wireless equipment.

Enphase Energy continues to offer its Enlighten monitoring service free for the lifetime of your solar system allowing the customer to get the absolute most out of their system.

Enphase's 25-year warranty is only transferable only as long as the Micro-inverter remains installed at the originally installed end user location. Because of this, Wholesale Solar cannot accept any returns on M250 inverters  or Enlighten Monitoring Units once they have been registered with Enphase. You can read Enphase M250 Microinverter Warranty here.

M250 Enphase Energy Microinverter

Call Wholesale Solar for current pricing on M250 Microinverter at 1-800-472-1142.


Product Specs Product Specs Product Specs Product Specs
Product Specs Installation & Operation Compatible Modules Warranty
Model Connector Volts Weight (lbs.) Item
Enphase M250 - Micro-Inverter
MC-4 208/240 4.41 2930488

Accessories Item Price
Enphase Install Kit, for M215 ET-INSTL 2977115 $89.00
Enphase Branch Terminator for M215 ET-TERM 2977065
Enphase M215/M250 Trunk Cable Single connector 240VAC, Portrait 40" Layout Single connector 2977165
Enphase M215/M250 Trunk Cable Single connector 240VAC, Landscape 67" Layout Single connector 2977166
Enphase ENV-120 Envoy System Monitor 2901019
MidNite Envoy Combiner Box, MNACENPR-3P20, Envoy ENV-120 Included 8920041
Enphase Power Line Carrier - EPLC-01 9937525
Enphase M215/M250 Junction Box Mounting Bracket 2977265
IronRidge Mounting Hardware Kit (Mounts 2 Inverters) 7800033 CALL

Accessories Item Price
Enphase Cable Clip, Single
Enphase Cable Disconnect Tool 2977085
Enphase Mounting Hardware Kit for XRS only 9890011 $5.00
Enphase Trunk Cable Single Connector 240 VAC 40" 2977165
Enphase Water Tight Cap 2977095

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M250 Micro-inverter General Features
  • 25 year limited warranty (PDF)
  • CSA listed per UL 1741/IEE1547
  • Works with 60-cell modules ONLY
  • 96%(208 Vac) 96.5%(240 Vac) CEC efficiency
  • Output power: 250W
  • Recommended max input power: 210 - 300W
  • Static MPPT efficiency 99.4%
M250 Enphase Energy
Input Data (DC)
Recommended maximum input power (STC) 210 - 300W
Maximum input DC voltage 48V
Peak power tracking range 27V – 39V
Operating range 16V –48V
Min./Max. start voltage 22V/48V
Max. DC short circuit current 15A
Max. input current 9.8A
Output Data (AC)
@208 Vac @240 Vac
Maximum output power 250W 250W
Nominal output current 1.15 A* 1.0 A*
Nominal voltage/range 183V-229V 211V-264V
Nominal frequency/range 60.0/57-61 Hz 60.0/57-61 Hz
Extended frequency/range 57-62.5 Hz 57-62.5 Hz
Power factor >0.95 >0.95
Maximum units per 20A branch circuit 24 (three phase) 16 (single phase)
Maximum output fault current 850 mA rms, for 6 cycles 850 mA rms, for 6 cycles
*Arms at nominal duration
@208 Vac @240 Vac
CEC weighted efficiency 96.0% 96.5%
Peak inverter efficiency 96.5%
Static MPPT efficiency (weighted, reference EN 50530) 99.4%
Night time power consumption 65 mW max
Mechanical Data
Ambient temperature range -40ºC to +65ºC
Operating temperature range (internal) -40ºC to +85ºC
Dimensions (WxHxD) 17.1 cm x 17.3 cm x 3.0 cm (6.73” x 6.81” x 1.18”)*
Weight 2.0 kg (4.41 lbs)
Cooling Natural convection – no fans
Enclosure environmental rating Outdoor – NEMA 6
*without mounting bracket
Compatibility Compatible with 60-cell PV modules
Communication Power line
Warranty 25-year limited warranty
Compliance UL1741/IEEE1547, FCC Part 15 Class BCAN/CSA-C22.2 NO. 0-M91, 0.4-04, and 107.1-01
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