SolarEdge power optimiser S440 – PV optimiser for 440 W solar panels
Description
SolarEdge power optimiser S440 – PV optimiser for 440 W solar panels
The SolarEdge S440 power optimiser is an advanced device designed specifically for use with SolarEdge inverters in residential installations. Thanks to individual maximum power point tracking (MPPT) for each panel, the optimiser increases energy production from the entire photovoltaic installation. It maintains a high circuit voltage, which directly translates into higher inverter efficiency. The built-in SafeDC system automatically reduces the circuit voltage to a safe level in the event of grid shutdown, inverter shutdown, or fire — protecting both the installer and emergency services. The optimiser also detects unusual behaviour in the PV connection, preventing potential safety issues. Each module is monitored individually through the SolarEdge monitoring system, allowing quick identification of underperforming panels.
Benefits for the installer
- Individual MPPT tracking reduces losses caused by module inhomogeneity — from manufacturing tolerances to partial shading.
- Faster installation thanks to simplified wiring and easy single-bolt mounting — reducing time spent on the roof.
- Flexible system design allows maximum use of available roof space.
- Compatibility with bifacial modules extends the range of supported installations.
- Module-level voltage shutdown (SafeDC) ensures safety during maintenance work and in emergency situations.
Technical specification
| DC Input | |
|---|---|
| Rated DC input power | 440 W |
| Absolute maximum input voltage (Voc) | 60 Vdc |
| MPPT operating range | 8 – 60 Vdc |
| Maximum short-circuit current (Isc) | 14.5 Adc |
| Maximum efficiency | 99.5% |
| Weighted efficiency | 98.6% |
| Overvoltage category | II |
| Output during operation | |
| Maximum output current | 15 Adc |
| Maximum output voltage | 60 Vdc |
| Output in standby mode | |
| Safe optimiser voltage | 1 ± 0.1 Vdc |
| Connections | |
| Input connector | MC4 |
| Input cable length | 0.1 m |
| Output connector | MC4 |
| Output cable length | (+) 2.3 m / (−) 0.10 m |
| Mechanical and environmental data | |
| Dimensions (W × L × H) | 129 × 155 × 30 mm |
| Weight | 720 g |
| Maximum permitted system voltage | 1000 Vdc |
| Protection rating | IP68 |
| Operating temperature range | −40 to +85 °C |
| Relative humidity | 0 – 100% |
| Standards compliance | |
| Electromagnetic compatibility | FCC Part 15 Class B, IEC61000-6-2, IEC61000-6-3, CISPR11, EN-55011 |
| Safety | IEC62109-1 (Class II), UL1741 |
| Fire safety | VDE-AR-E 2100-712:2018-12 |
| Material | UL94 V-0, UV-resistant |
| RoHS | Yes |
Files to download:
Technical data
| Nominal DC input power [W] | 440 |
| Input connector | MC4 |
| Output connector | MC4 |
| Operating temperature [°C] | -40°C - 85 |
| Degree of protection | IP68 |
| Input cable length [m] | 0,1 |
| Output cable length [m] | (+) 2.3, (-) 0.10 |
| Width [mm] | 155 |
| Length [mm] | 129 |
| Thickness [mm] | 30 |
| Weight [kg] | 0,72 |