The Atmoce MI-1000 2-in-1 microinverter connects two solar PV modules to a single unit, each tracked by its own independent MPPT channel, converting their combined DC output into grid-compliant AC power directly on the roof. With a nominal output of 1000W and a peak efficiency of 98.2%, the MI-1000 suits higher-output panel pairings while halving the number of microinverters needed compared with single-module units.
Running on a safety DC voltage under 60V, the MI-1000 removes the high-voltage DC arc risk found in string inverter systems, and its IP67-rated enclosure with Power Line Communication (up to 350m range) supports reliable module-level monitoring on larger arrays.
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1000W
Nominal Output
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98.2%
Peak Efficiency
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2
MPPT Channels
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<60V
Safety DC Voltage
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IP67
Ingress Protection
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25 Yrs
Warranty
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Please Note: Each DC input on the MI-1000 should be matched to a PV module within the specified voltage and power window. Confirm both connected modules' Pmax and voltage ratings against the datasheet below before wiring.
Dual-Module, Dual-MPPT Design
Connects two PV modules to a single microinverter via two independent DC inputs, each with its own MPPT tracking, so both panels are optimised separately despite sharing one unit.
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Industry-Leading Efficiency
Delivers a peak efficiency of 98.2% and EU efficiency of 97.5%, among the highest in its class, translating into a faster payback period across the array.
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Extra-Low DC Voltage
Operates at a safety DC voltage under 60V, eliminating the high-voltage DC arc fault risk associated with string inverter systems and simplifying installation compliance.
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Fewer Units, Less Wiring
By serving two modules from one microinverter, installers fit roughly half the number of units compared with a single-module design, cutting hardware, labour and roof penetrations.
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Long-Range PLC Communication
Built-in Power Line Communication with a range of up to 350 metres reports module-level performance data without extra signal cabling, even across larger arrays.
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Weatherproof, Long-Life Build
An IP67-rated, Class II double-insulated polymer enclosure is designed for outdoor rooftop exposure, backed by a 25-year manufacturer warranty.
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| Input (DC) Parameters — Per MPPT Channel |
| Model |
MI-1000 |
| PV inputs |
2 independent MPPT channels (2-in-1 design) |
| Max./min. input voltage |
16 to 60 V |
| Peak power tracking voltage range |
33 to 55 V |
| PV module compatibility |
54-cell/108 half-cell, 60-cell/120 half-cell, 66-cell/132 half-cell and 72-cell/144 half-cell |
| DC connector type |
Stäubli MC4 |
| Number of DC connectors |
2 pairs |
| Output (AC) Parameters |
| Nominal output power |
1000 W |
| Max. apparent power |
1000 VA |
| Nominal output voltage |
220/230/240 V |
| Voltage range |
184 to 276 V |
| Nominal output current @230V |
4.35 A |
| Max. output current @230V |
4.57 A |
| Nominal frequency |
50/60 Hz |
| Power factor |
>0.99 (adjustable 0.8 leading to 0.8 lagging) |
| Total harmonic distortion |
<1.5% |
| AC connector type |
MT-02502-A (must be used with matching AC cables) |
| Number of AC connectors |
1 pair |
| Efficiency |
| Peak efficiency |
98.2% |
| EU efficiency |
97.5% |
| MPPT efficiency |
99.9% |
| Mechanical & Environmental |
| Dimensions (W x H x D, without bracket) |
250 x 202 x 35/36 mm |
| Weight (without bracket) |
2.2 kg |
| Enclosure protection class |
Outdoor - IP67, Class II double-insulated |
| Ambient temperature range |
-40°C to 65°C |
| Storage temperature range |
-40°C to 85°C |
| Relative humidity range |
4% to 100%, condensing |
| Cooling |
Natural convection |
| Communication |
Power Line Communication (PLC), up to 350m range |
| Indicator |
1 x LED status indicator |
| Compliance |
| Safety |
IEC 62109-1/-2 |
| EMC |
IEC 61000-6-1/-2/-3/-4, EN 62920 |
| Grid compliance |
VDE 0124, VDE 4105, UTE 0126, EN 50549, EN 50530 |
| Warranty |
25 years |
Can this microinverter really run two separate solar panels?
Yes. The MI-1000 has two independent DC inputs, each with its own MPPT (maximum power point tracking) channel, so the two connected panels are optimised individually — one panel's shading or soiling doesn't limit the other's output.
Does using a 2-in-1 microinverter mean fewer units on the roof?
Yes. Because each unit serves two PV modules rather than one, a typical array needs roughly half as many microinverters compared with a single-module design, reducing hardware cost, wiring and roof penetrations.
What panel sizes are compatible?
The unit supports 54-cell/108 half-cell through to 72-cell/144 half-cell PV modules across both DC inputs, covering the majority of residential and small commercial panel formats.
How far can the Power Line Communication signal travel?
The built-in PLC communication has a rated range of up to 350 metres, allowing module-level monitoring data to reach the system gateway without additional signal wiring, even on larger installations.
What is the nominal AC output of the MI-1000?
The MI-1000 has a nominal output power of 1000W, combining the output of both connected PV modules into a single grid-tied AC feed.
Is the unit rated for outdoor rooftop mounting?
Yes. It carries an IP67 ingress protection rating in a Class II double-insulated polymer enclosure and is approved for wet locations, suitable for direct outdoor mounting behind the PV modules.
