SolarEdge P850 Optimiser 850W MC4 2x High Power/Bifacial 1.2m/2.2m Output 0.16m Input Cables
SolarEdge P850 Power Optimiser 850W MC4 for 2 High-Power or Bifacial PV Modules, 1.2m Output, 0.12m Inputs
- 850W SolarEdge P850 optimiser for two high-power or bifacial solar modules connected in series.
- Specified with 0.12m MC4 input leads and a 1.2m MC4 output lead for landscape PV layouts.
- Provides module-level optimisation, monitoring and safety voltage reduction when used with a compatible SolarEdge three-phase inverter.
SolarEdge P850 Power Optimiser
The SolarEdge P850 is a commercial-scale power optimiser designed for a pair of high-power or bifacial PV modules connected in series. It works as part of a SolarEdge inverter system, helping each connected module pair operate at its available power point while providing module-level monitoring through the SolarEdge platform.
This version has 1.3m input cables and a 2.2m output cable, making it suitable for installations where longer module connections are required, particularly landscape-oriented commercial arrays. It is not a standalone device and must be installed with a compatible SolarEdge three-phase inverter.
Key features
- Rated for 850W DC input power across two series-connected high-power or bifacial PV modules.
- Maximum efficiency of 99.5% and weighted efficiency of 98.6%.
- MC4 input and output connectors for straightforward connection to compatible PV modules and SolarEdge strings.
- Module-level safety output voltage of 1 ± 0.1V when the inverter is off or the optimiser is disconnected from the inverter.
- IP68 / NEMA 6P protection rating for demanding outdoor PV installations.
Where to use
Use the P850 in commercial, industrial and larger ground-mount solar installations built around compatible SolarEdge three-phase inverters. It is intended for two high-power or bifacial modules in series per optimiser.
- Commercial rooftop arrays using high-power or bifacial modules.
- Warehouse, agricultural, logistics and industrial-site solar projects.
- Ground-mounted arrays where module mismatch from orientation, shading or soiling may affect string performance.
- Landscape module installations requiring a 2.2m output lead.
The P850 is compatible with SolarEdge three-phase inverters rated SE16K and above. P850 optimisers can be used in the same string as P800p units, but must not be mixed with P600, P650 or P730 optimisers in the same string. For system design, module pairing and inverter compatibility, contact our UK expert support team before ordering.
Technical specifications
| Model | SolarEdge P850 Power Optimiser |
| Typical module compatibility | Two high-power or bifacial PV modules connected in series |
| Rated input DC power | 850W |
| Connection method | Single input for series-connected modules |
| Absolute maximum input voltage (Voc at lowest temperature) | 125Vdc |
| MPPT operating range | 12.5–105Vdc |
| Maximum short-circuit current per input (Isc) | 12.5Adc |
| Maximum efficiency | 99.5% |
| Weighted efficiency | 98.6% |
| Overvoltage category | II |
| Maximum output current | 18Adc |
| Maximum output voltage | 85Vdc |
| Safety output voltage in standby | 1 ± 0.1Vdc per power optimiser |
| Compatible SolarEdge inverters | SolarEdge three-phase inverters SE16K and larger |
| Maximum allowed system voltage | 1,000Vdc |
| Dimensions (W × L × H) | 129 × 162 × 59mm |
| Weight | 1,064g |
| Input connector | MC4 |
| Input wire length | 0.16m |
| Output connector | MC4 |
| Output wire length | 1.2m portrait / 2.2m landscape orientation |
| Operating temperature range | -40°C to +85°C |
| Protection rating | IP68 / NEMA 6P |
| Relative humidity | 0–100% |
| EMC compliance | FCC Part 15 Class B, IEC 61000-6-2, IEC 61000-6-3 |
| Safety standard | IEC 62109-1, Class II safety |
| RoHS compliant | Yes |
| Fire safety | VDE-AR-E 2100-712:2013-05 |
| Minimum string length | 14 power optimisers / 27 PV modules |
| Maximum string length | 30 power optimisers / 60 PV modules |
| Maximum power per string | 13,500W with SolarEdge three-phase SE16K and larger; 15,300W with SolarEdge three-phase inverters for 277/480V grid |
| Parallel strings of different lengths or orientations | Yes |
Documents available for download
Shipping and support
Available for delivery across the UK, Ireland, Africa, the Caribbean and worldwide. If a shipping rate is not shown at checkout, call +44 2080640335 or email info@energian.co.uk for a quote.
UK expert support is available by phone, email and live chat. You are also welcome to visit our office for an in-person consultation. For larger commercial systems, string design, or installation support, we can help connect you with trusted installation partners.