Inverter Specifications
| SKU | APS-DS3 |
|---|---|
| Operating type | Grid-tie |
| Inverter function | Inverter only |
| Inverter architecture | Microinverter |
| Continuous apparent power (VA) | 880.0 |
| AC output voltage (V) | 240 |
| AC output frequency (Hz) | 60 |
| AC phase configuration | Single-phase |
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| Solar PV input supported | Yes |
|---|---|
| Max DC input voltage (V) | 60.0 |
| Min MPPT voltage (V) | 32.0 |
| Max MPPT voltage (V) | 55.0 |
| Independent MPPT count | 2 |
| PV inputs per tracker | 1 |
| Max PV operating current (A) | 20.0 |
| PV operating-current limit basis | Per input |
| Peak efficiency (%) | 97.0 |
| Weighted efficiency (%) | 96.5 |
| Weighted efficiency standard | CEC |
| Warranty limits | EMA monitoring is required for warranty eligibility. |
| Communication interfaces | Encrypted ZigBee |
| Monitoring app or portal | APsystems EMA |
| Required monitoring accessories | Compatible APsystems ECU |
| Length (mm) | 41.2 |
| Width (mm) | 262.0 |
| Height (mm) | 218.0 |
| Weight (kg) | 2.6 |
| Mounting format | Module-mounted |
| Enclosure rating | NEMA 6 |
| Min operating temperature (°C) | -40.0 |
| Max operating temperature (°C) | 65.0 |
| Cooling method | Passive |
| Certifications | UL 1741, CSA C22.2 No. 107.1-16 |
| Grid standards and listings | CA Rule 21 (UL 1741 SA) |
| Applicable regions and model variants | North America |
| MPN | DS3 |
Description
SKU: APS-DS3
Mfg. SKU: DS3
APsystems DS3 Microinverter
Overview
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Mounts on standard solar rails behind each panel, converting DC into clean 240 V AC for Canadian grid-tie systems.
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Two independent PV inputs optimize up to two panel strings—each string tracked separately for mixed orientations or partial shade.
Key Features & Specifications
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Dual PV Inputs & MPPT
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Two independent MPPT channels track “sweet-spot” voltage (32 V–55 V within a 26 V–60 V operating range), harvesting up to 99.5 % of panel potential.
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Maximum input current: 20 A per channel.
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Module Compatibility
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Panel power range: 300 Wp–660 Wp+
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Maximum open-circuit voltage (Voc): 60 V
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AC Output
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Continuous power: 880 VA at 240 V, 60 Hz (3.7 A nominal)
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Adjustable power factor: ±0.7
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Maximum units per branch: 4 on a 20 A circuit; 6 on a 30 A circuit
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Efficiency
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Peak conversion efficiency: 97 %
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CEC-weighted efficiency: 96.5 %
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MPPT efficiency: 99.5 %
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Night power draw: 20 mW
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Durability & Safety
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Operating temperature: –40 °F to +149 °F
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NEMA 6–rated enclosure with passive (fan-free) cooling
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Built-in protection: over/under-voltage & frequency (UL 1741, CSA C22.2)
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Installation & Monitoring
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MC4 plug-and-play connectors for fast, tool-free wiring
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ZigBee communication to APsystems EMA portal for real-time, panel-level monitoring
Mechanical Specifications
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Dimensions: 10.3″ × 8.6″ × 1.6″
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Weight: 5.7 lb
Fun Fact & Sizing Tip
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Solar panel voltage drops on hot summer days and spikes on cold winter mornings.
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Keep Voc at least 25 % below the 60 V max (aim for ~45 V) to allow cold-weather headroom and avoid over-voltage trips.
Why It’s Ideal for Canadian Solar
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Maximizes net-metering and rebate programs (Ontario, Alberta, B.C., Québec, Canada Greener Homes Grant)
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Lowers energy bills by squeezing extra kWh from every panel
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Provides carbon-tax relief by generating clean power to offset Canada’s carbon levy
Support
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APsystems North American warranty
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24/7 technical support via phone, email, and online resources