Best current price£53.06from City Plumbing GB
Shopping.co.uk recommended and popular offers
City Plumbing GB£53.06Visit shop Solaredge 440W Power Optimiser
Visit shop
B&Q£68.99Visit shop - Solaredge 440W Power Optimiser
Visit shop2 offers from £53.06 - £68.99
View price history by clicking the chart icon.
The SolarEdge S440-1GM4MRM is an essential component for residential solar installations, ideal for homeowners looking to maximize energy production from individual solar panels. This 440W power optimiser ensures that each module operates at its peak efficiency by mitigating energy losses caused by shading, soiling, or manufacturing variances. While it significantly improves system performance and monitoring capabilities, it requires a compatible SolarEdge residential inverter to function properly within the broader solar array system.
| Model Part Number | S440-1GM4MRM |
|---|---|
| Brand | SolarEdge |
No, the S440-1GM4MRM is designed to communicate exclusively with SolarEdge residential inverters.
Yes, the unit features SafeDC technology that reduces the output voltage to 1V per module when the inverter is turned off or the grid goes down.
The monitoring system will report a fault for that specific module, allowing an installer to pinpoint the issue without testing every panel.
It is generally recommended to use the same model of optimisers within a single string to maintain design consistency and performance.
Yes, the S440 is built with an IP68-rated enclosure, designed for long-term outdoor operation in various weather conditions.
Check the physical DC cable connections between the module, the optimiser, and the string wiring.
Ensure the RS485 or Ethernet connection to the inverter is stable and verify that the firmware is updated.
Inspect the physical panel for debris, bird droppings, or new shading sources like growing tree branches.
Installation of the S440-1GM4MRM should be performed by a certified solar technician. The optimiser is mounted directly onto the racking system behind each solar module. Ensure all DC connections are tightened securely to prevent arcing.
Compatibility is strictly limited to SolarEdge residential inverters; verify that your inverter firmware supports the S-series optimiser range before installation. For care, minimal maintenance is required. However, periodically inspect the SolarEdge monitoring portal for any alerts. If a module-level fault is detected, it is recommended to contact a certified installer to perform physical troubleshooting of the electrical connections or the panel itself.
