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P850 Optimiser 850W MC4 2x High Power/Bi-facial 2.2m with 1.3m input length
SolarEdge P850 Optimiser 850W MC4 2x High Power/Bi-facial 2.2m with 1.3m input length
P850 Optimiser 850W MC4 2x High Power/Bi-facial 2.2m with 1.3m input length is a SolarEdge P850 power optimiser rated 850 W, for up to two high power or bifacial modules in series, supplied with a 1.3 m input lead, 2.2 m output lead for landscape mounting.
A power optimiser is a DC-DC converter that sits behind an individual PV module, between the module and the string. It tracks that one module's maximum power point continuously, so a module that is shaded, soiled, differently oriented or simply weaker than its neighbours no longer drags the whole string down to its own output. The optimiser then presents a fixed, well-behaved voltage to the string, which is what allows longer strings and mixed orientations on the same inverter.
The P-series is the earlier commercial platform, still specified where an existing site is being extended and the new optimisers have to match what is already on the roof. Two modules in series through one input.
It also reports each module's performance back to the monitoring platform, so a fault is traced to a single module rather than to a string, and it drops the module's DC voltage to a touch-safe level automatically whenever the inverter or the grid shuts down — SolarEdge call this SafeDC.
The P850 has a bent bracket, in the same style as the P505, to clear larger module enclosures. SolarEdge also list this optimiser as P850-5RM4MBY.
Input
| Rated input DC power | 850 W |
| Connection method | Single input, modules connected in series |
| Absolute maximum input voltage (Voc) | 125 V |
| MPPT operating range | 12.5 V – 105 V |
| Maximum short circuit current (Isc) of connected module | 14.1 A 12.5 A on units manufactured in work week 06/2020 or earlier. The manufacture code is in the serial number, for example S/N SJ0620A-xxxxxxxx is work week 06 of 2020. |
Output and efficiency
| Maximum efficiency | 99.5 % |
| Weighted efficiency | 98.6 % |
| Maximum output current | 18 A |
| Maximum output voltage | 80 V |
| Safety output voltage per optimiser, in standby | 1 ± 0.1 V |
Mechanical and environmental
| Width | 129 mm |
| Height | 162 mm |
| Depth | 59 mm |
| Weight | 1,064 g |
| Input and output connector | MC4 |
| Cable lengths | Input 1.3 m, output 2.2 m |
| Operating temperature range | −40 °C to +85 °C |
| Protection rating | IP68 / NEMA6P |
| MPPT trackers | 1 |
| Compatible inverters | SolarEdge three phase inverters, SE16K and larger |
| Maximum allowed system voltage | 1,000 Vdc |
| Overvoltage category | II |
| Safety | IEC 62109-1, class II |
| Enclosure material | UL94 V-0, UV resistant |
| RoHS | Yes |
| Fire safety | VDE-AR-E 2100-712:2013-05 |
| Warranty | 25 years |
Power derating is applied above +70 °C ambient.
Before you order
- P800p, P850, P950 and P1100 optimisers may be mixed with each other in one string, but not with any other SolarEdge optimiser.
Additional suggested items
Ordered with this optimiser more often than anything else:
- P850 Optimiser 850W MC4 2x High Power/Bi-facial 2.2m with 1.3m input length (Pack of 200)
- Three Phase Inverter, 25kW, MC4, DC safety unit with switch, AC & DC SPD, AC/DC Segregation
- SolarEdge 20,000W Three Phase Inverter M4 Basic NO DISPLAY
Datasheets, application notes and installation guides are in the Documents tab below. See the rest of our inverter and optimiser range and our solar panels, or contact our sales team at sales@clearraysolar.com if you need help matching an optimiser to an inverter.
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Everything you need in one place.
- Inverters
- Batteries
- Mounting Systems
- Cabling & Accessories
- Protection Devices
Delivery times vary by region:
- UK — 1-2 business days
- Highlands & Islands — 1-2 business days
Returns accepted within 14 days of delivery for unused items in original packaging.
