Ground Fault Investigation Guidance
Ground fault alarms can be caused by a range of site-side issues, including AC wiring faults, incorrect polarity, poor earthing, abnormal grid supply conditions or high earth electrode resistance on TT systems. In some cases, the issue may also relate...
Installation Clearances & Environmental Position Statement (UK)
Fox ESS products are designed for safe and reliable operation across a wide range of real-world installation environments. Published installation manuals provide recommended clearances and environmental conditions based on standardised testing and optimal performance scenarios. Download a PDF copy of...
Commercial Battery Storage & Insurance: Bridging the Knowledge Gap
Supporting installers in navigating insurer concerns around lithium battery systems in commercial environments Download the Safety & Risk Clarification Statement Introduction Over recent months, we have received increasing feedback from installers encountering resistance from insurers and underwriters when proposing or...
5-second live energy flow available on FoxCloud for selected devices
We’re rolling out a major upgrade to the Fox ESS app that brings your system to life in near real time. The main energy-flow screen will now refresh every 5 seconds, instead of every 3–5 minutes, giving you a far...
Coming soon: Fox cable covers
In response to installer feedback, Fox is developing a new range of cable covers designed for our full range of hybrid inverters and modular batteries. These covers attach directly to the main chassis, providing added protection against tampering while delivering...
New product release: H3 Smart
Fox are delighted to announce the release of their new 3-phase hybrid inverter, the H3 Smart, now available via our leading distributors and wholesalers. The H3 Smart will, in time, replace the hugely successful H3 model and offers a series...
G98/99/100 type test report downloads
If you are requested to supply the type test report to accompany your DNO application, a full archive of downloads is provided below: ModelG98G99G100Cyber Security DeclarationS G2 (all models)DownloadDownloadF3000 (G3)Download Download F3600 (G3)Download F4600 (G3) DownloadF5000 (G3) DownloadF6000 (G3) DownloadG7 DownloadDownload G8 DownloadG9 DownloadG10 DownloadG10.5 DownloadT3 (G3)Download Download T4 (G3)Download T5 (G3)Download T6 (G3)Download T8 (G3)Download T10 (G3)Download T12...
Why FoxESS recommends a minimum 100mA RCD on the AC side
One of the more frequent questions we receive from UK installers concerns our recommendation for RCD protection on the AC side of our inverters. Specifically, when external RCD protection is required (based on local regulations or specific installation conditions), we...
Why does FoxESS recommend higher-rated MCBs than the inverter’s output?
One of the most common questions we get from installers and system designers is:“Why does the recommended MCB size in the FoxESS manual seem higher than the inverter’s rated output current?” At first glance, it seems counterintuitive. If an inverter...
Why does my inverter make a high-pitched sound?
This is known as coil whine and is perfectly normal in modern inverters, especially when the system is working hard (charging, discharging, or exporting to the grid). It happens when electronic components like coils or transformers vibrate slightly as electricity...
