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S1400 Power Optimizer (Short Input 0.1m)
SolarEdge S1400 Power Optimizer (Short Input 0.1m)
S1400 Power Optimizer (Short Input 0.1m) is a SolarEdge S1400 power optimiser rated 1,400 W, for up to two high power or bifacial modules in series, supplied with a 0.1 m short input lead.
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 S-series commercial optimisers take two modules in series through a single input, which halves the number of optimisers, brackets and connections on a large roof or field array. Fewer cables, fewer fuses and fewer combiner boxes for the same installed capacity.
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.
Input
| Rated input DC power | 1,400 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 | 20 A With bifacial modules, count the front-side Isc at STC only, with no rear-side gain. |
Output and efficiency
| Maximum efficiency | 99.5 % |
| Weighted efficiency | 98.8 % The datasheet states 99.5 % or higher maximum and 98.8 % or higher weighted. |
| Maximum output current | 24 A |
| Maximum output voltage | 80 V |
| Safety output voltage per optimiser, in standby | 1 ± 0.1 V |
Mechanical and environmental
| Width | 129 mm |
| Height | 165 mm |
| Depth | 52 mm |
| Weight | 1,087 g |
| Input and output connector | MC4 |
| Cable lengths | Input 0.1 m, output 5.7 m (+) / 0.1 m (−) |
| Operating temperature range | −40 °C to +85 °C |
| Protection rating | IP68 / NEMA6P |
| MPPT trackers | 1 |
| Compatible inverters | Commercial inverters without integrated DC fuses |
| 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 +65 °C ambient.
Before you order
- The S1400 is designed for inverters that do not have integrated DC fuses. Inverters that do have them must be adjusted manually before the S1400 can be used.
- If paired with any of the fused commercial inverters, the fuses inside must be replaced with SE-FLD-3PH-NEUTRAL-LINK — one for each fuse, so 4 × SE-FLD-3PH-NEUTRAL-LINK per Manager unit.
Additional suggested items
Ordered with this optimiser more often than anything else:
- S1200 Power Optimizer (Short Input 0.1m)
- SolarEdge S1200 Commercial Power Optimizer Long Input (1.6m)
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.
Build your complete solar system
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.
