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$61.38The Story
The Enphase IQ8MC Microinverter (model IQ8MC-72-M-INT) is the entry point of the IQ8 Series for UK residential and commercial solar installations. Rated at 330 W maximum AC output with a 97.5% peak efficiency (96.7% EU weighted), it is optimised for 54-cell to 72-cell modules — including all modern half-cell (108 to 144 half-cell) and full-cell variants — and connects to the grid at 230 V / 50 Hz. Like all IQ8 Series microinverters, it uses Stäubli MC4 DC connectors and the Enphase IQ Cable for AC connection, features module-level rapid shutdown, and communicates with the IQ Gateway via powerline communication (PLC). CE marked, certified to G98, G99, and G100, and backed by a 25-year limited warranty with connected IQ Gateway. Source: UK datasheet DSH-00198-5.0, March 2026.
The IQ8MC supports 54-cell/108 half-cell through 72-cell/144 half-cell modules — the most common form factors in residential installations. No enforced DC/AC ratio means modules up to the MPP voltage limit can be paired without mandatory de-rating, giving installers maximum flexibility in panel selection.
The IQ8MC accepts up to 480 W DC input power (Pdcmax). Pairing a higher-wattage module with this microinverter will result in some clipping at peak irradiance, but Enphase's compatibility calculator models annual yield against clipping losses — and clipping is typically small at UK irradiance levels.
Enphase's patented Burst Mode keeps the IQ8MC producing at very low light levels where competing inverter technologies would otherwise drop out. This particularly benefits UK installations where overcast skies are common, adding meaningful annual kWh without requiring any configuration.
The IQ8 Series carries an industry-leading 25-year limited warranty — longer than most PV module manufacturer warranties and matched only by Enphase's own higher-tier IQ8 models. This warranty is backed by more than one million cumulative power-on hours of reliability testing.
The IQ8MC's Class II double-insulated design means the PV array does not require a separate DC earth conductor. This simplifies racking earthing design, reduces cable cost, and removes a common source of ground fault issues in residential string inverter systems.
With no moving parts and natural convection cooling, the IQ8MC operates silently and has no fan failure mode. The IP67-rated polymer enclosure is unaffected by rain, condensation, or UK coastal environments — maintaining performance across the full -40°C to +65°C operating range.
| Technical Specifications — IQ8MC-72-M-INT (UK Datasheet DSH-00198-5.0, March 2026) | |
|---|---|
| DC Input | |
| Typical module compatibility | 54-cell/108 HC, 60-cell/120 HC, 66-cell/132 HC, 72-cell/144 HC |
| Min/Max input voltage | 18 V / 60 V |
| Startup input voltage | 22 V |
| Rated input voltage | 35.0 V |
| Min/Max MPP voltage | 25 V / 45 V |
| Max input current (Idcmax) | 14 A |
| Max short-circuit input current (Iscmax) | 25 A (max module Isc: 20 A, per IEC 62548 ×1.25) |
| Max input power (Pdcmax) | 480 W |
| AC Output | |
| Max AC output power | 330 W |
| Max apparent power | 325 VA |
| Rated power | 325 W |
| Nominal grid voltage | 230 V (range: 184–276 V) |
| Nominal frequency | 50 Hz (range: 45–55 Hz) |
| Max output current | 1.43 A |
| Max units per single-phase 20A circuit | 11 (L+N) |
| Max units per three-phase 20A circuit | 33 (3L+N) |
| Max units per IQ Cable section (single/multi-phase) | 8 (L+N) / 18 (3L+N) |
| Power factor (adjustable) | 0.8 leading … 0.8 lagging |
| Total harmonic distortion | <5% |
| Peak efficiency | 97.5% |
| EU weighted efficiency | 96.7% |
| Topology | Isolated HF transformer |
| Night-time power loss | 50 mW |
| Mechanical & Environmental | |
| Dimensions (H × W × D) | 212 mm × 175 mm × 30.2 mm (excl. mounting brackets) |
| Weight (with mounting plate) | 1.1 kg |
| Ambient temperature range | -40°C to +65°C |
| Relative humidity | 4–100% (condensing) |
| Cooling | Natural convection — no fans |
| Enclosure | Class II double-insulated, corrosion-resistant polymer |
| IP rating | Outdoor — IP67 |
| Max altitude | < 2,600 m |
| DC connector | Stäubli MC4 (integrated) |
| AC connector | Enphase IQ Cable |
| Standards & Compliance | |
| Grid compliance | G98, G99, G100 |
| Safety | EN IEC 62109-1, EN IEC 62109-2 |
| EMC | EN IEC 61000-3-2/-3-3/-6-2/-6-3, EN IEC 50065-1/-2-2, EN 55011 |
| Product labelling | CE |
| Limited warranty | Up to 25 years (requires connected IQ Gateway) |
| Communication | PLC 110–120 kHz (Class B), narrowband 200 Hz |
How does the IQ8MC differ from the IQ8AC and IQ8HC?
Can the IQ8MC be used on a three-phase property?
What is the maximum module wattage I can pair with the IQ8MC?
Is an IQ Gateway required?
Does the IQ8MC support G100 export limiting?
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
The Enphase IQ8MC Microinverter (model IQ8MC-72-M-INT) is the entry point of the IQ8 Series for UK residential and commercial solar installations. Rated at 330 W maximum AC output with a 97.5% peak efficiency (96.7% EU weighted), it is optimised for 54-cell to 72-cell modules — including all modern half-cell (108 to 144 half-cell) and full-cell variants — and connects to the grid at 230 V / 50 Hz. Like all IQ8 Series microinverters, it uses Stäubli MC4 DC connectors and the Enphase IQ Cable for AC connection, features module-level rapid shutdown, and communicates with the IQ Gateway via powerline communication (PLC). CE marked, certified to G98, G99, and G100, and backed by a 25-year limited warranty with connected IQ Gateway. Source: UK datasheet DSH-00198-5.0, March 2026.
The IQ8MC supports 54-cell/108 half-cell through 72-cell/144 half-cell modules — the most common form factors in residential installations. No enforced DC/AC ratio means modules up to the MPP voltage limit can be paired without mandatory de-rating, giving installers maximum flexibility in panel selection.
The IQ8MC accepts up to 480 W DC input power (Pdcmax). Pairing a higher-wattage module with this microinverter will result in some clipping at peak irradiance, but Enphase's compatibility calculator models annual yield against clipping losses — and clipping is typically small at UK irradiance levels.
Enphase's patented Burst Mode keeps the IQ8MC producing at very low light levels where competing inverter technologies would otherwise drop out. This particularly benefits UK installations where overcast skies are common, adding meaningful annual kWh without requiring any configuration.
The IQ8 Series carries an industry-leading 25-year limited warranty — longer than most PV module manufacturer warranties and matched only by Enphase's own higher-tier IQ8 models. This warranty is backed by more than one million cumulative power-on hours of reliability testing.
The IQ8MC's Class II double-insulated design means the PV array does not require a separate DC earth conductor. This simplifies racking earthing design, reduces cable cost, and removes a common source of ground fault issues in residential string inverter systems.
With no moving parts and natural convection cooling, the IQ8MC operates silently and has no fan failure mode. The IP67-rated polymer enclosure is unaffected by rain, condensation, or UK coastal environments — maintaining performance across the full -40°C to +65°C operating range.
| Technical Specifications — IQ8MC-72-M-INT (UK Datasheet DSH-00198-5.0, March 2026) | |
|---|---|
| DC Input | |
| Typical module compatibility | 54-cell/108 HC, 60-cell/120 HC, 66-cell/132 HC, 72-cell/144 HC |
| Min/Max input voltage | 18 V / 60 V |
| Startup input voltage | 22 V |
| Rated input voltage | 35.0 V |
| Min/Max MPP voltage | 25 V / 45 V |
| Max input current (Idcmax) | 14 A |
| Max short-circuit input current (Iscmax) | 25 A (max module Isc: 20 A, per IEC 62548 ×1.25) |
| Max input power (Pdcmax) | 480 W |
| AC Output | |
| Max AC output power | 330 W |
| Max apparent power | 325 VA |
| Rated power | 325 W |
| Nominal grid voltage | 230 V (range: 184–276 V) |
| Nominal frequency | 50 Hz (range: 45–55 Hz) |
| Max output current | 1.43 A |
| Max units per single-phase 20A circuit | 11 (L+N) |
| Max units per three-phase 20A circuit | 33 (3L+N) |
| Max units per IQ Cable section (single/multi-phase) | 8 (L+N) / 18 (3L+N) |
| Power factor (adjustable) | 0.8 leading … 0.8 lagging |
| Total harmonic distortion | <5% |
| Peak efficiency | 97.5% |
| EU weighted efficiency | 96.7% |
| Topology | Isolated HF transformer |
| Night-time power loss | 50 mW |
| Mechanical & Environmental | |
| Dimensions (H × W × D) | 212 mm × 175 mm × 30.2 mm (excl. mounting brackets) |
| Weight (with mounting plate) | 1.1 kg |
| Ambient temperature range | -40°C to +65°C |
| Relative humidity | 4–100% (condensing) |
| Cooling | Natural convection — no fans |
| Enclosure | Class II double-insulated, corrosion-resistant polymer |
| IP rating | Outdoor — IP67 |
| Max altitude | < 2,600 m |
| DC connector | Stäubli MC4 (integrated) |
| AC connector | Enphase IQ Cable |
| Standards & Compliance | |
| Grid compliance | G98, G99, G100 |
| Safety | EN IEC 62109-1, EN IEC 62109-2 |
| EMC | EN IEC 61000-3-2/-3-3/-6-2/-6-3, EN IEC 50065-1/-2-2, EN 55011 |
| Product labelling | CE |
| Limited warranty | Up to 25 years (requires connected IQ Gateway) |
| Communication | PLC 110–120 kHz (Class B), narrowband 200 Hz |
