{"product_id":"victron-anti-islanding-relay-ufr1001e","title":"Victron Anti-islanding relay UFR1001E - REL100100000","description":"\u003ch1 style=\"color: #f87c24;\"\u003eAnti-Islanding Relay UFR1001E\u003c\/h1\u003e\n\n\u003cp\u003eThe Victron UFR1001E is an anti-islanding relay designed for grid-connected solar and inverter installations in the UK. It monitors grid frequency and voltage, disconnecting the inverter from the grid when parameters fall outside safe limits. It is intended for use by qualified electrical installers working on systems that require G98 or G99 compliance.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMonitors grid frequency and voltage continuously, tripping the relay when thresholds are exceeded.\u003c\/li\u003e\n  \u003cli\u003eSupports G98 and G99 compliance requirements for UK grid-connected solar PV systems.\u003c\/li\u003e\n  \u003cli\u003eCompact and lightweight at 0.23 kg, suitable for installation within standard enclosures.\u003c\/li\u003e\n  \u003cli\u003eDesigned to work with Victron inverters and inverter\/chargers in grid-tied configurations.\u003c\/li\u003e\n  \u003cli\u003eProvides automatic disconnection to prevent back-feeding into a de-energised grid, protecting utility workers and equipment.\u003c\/li\u003e\n  \u003cli\u003eSKU: REL100100000 | GTIN: 8719076024408\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eAnti-islanding protection is a mandatory requirement for grid-connected inverter systems in the UK. When the grid goes down, an inverter without anti-islanding protection can continue to energise the local network, creating a hazard for utility engineers working on what they believe to be a de-energised line. The UFR1001E addresses this by monitoring both frequency and voltage at the point of connection and opening the relay contact when either parameter moves outside the permitted window.\u003c\/p\u003e\n\n\u003cp\u003eThe UFR1001E is a dedicated external relay unit rather than a software-only function. This matters in installations where the Distribution Network Operator (DNO) or local authority requires a physical disconnect device as part of the G98 or G99 application. It integrates into the AC wiring of the installation and operates independently of the inverter's own internal protection, providing an additional layer of hardware-level disconnection.\u003c\/p\u003e\n\n\u003cp\u003eAt 0.23 kg, the unit is compact enough to fit within most distribution board or inverter enclosure arrangements. Installation must be carried out by a qualified electrician familiar with grid-tied solar PV wiring and DNO notification requirements.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSKU: REL100100000\u003c\/li\u003e\n  \u003cli\u003eGTIN: 8719076024408\u003c\/li\u003e\n  \u003cli\u003eWeight: 0.23 kg\u003c\/li\u003e\n  \u003cli\u003eCompliance: G98 \/ G99 (UK grid connection)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eGrid-connected solar PV systems requiring G98 or G99 DNO notification and compliance.\u003c\/li\u003e\n  \u003cli\u003eVictron inverter and inverter\/charger installations where a physical anti-islanding disconnect is specified.\u003c\/li\u003e\n  \u003cli\u003eCommercial and residential solar installations where the DNO requires a dedicated hardware relay.\u003c\/li\u003e\n  \u003cli\u003eRetrofit anti-islanding protection for existing grid-tied systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eWhat Is Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Victron UFR1001E Anti-Islanding Relay\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eInstallation Notes\u003c\/h3\u003e\n\u003cp\u003eThis device must be installed by a qualified electrician with experience in grid-connected solar PV systems. G98 or G99 notification to the relevant DNO is required before energising a grid-tied system in the UK. The relay must be wired into the AC circuit in accordance with the manufacturer's wiring diagram and any DNO-specific requirements. Do not attempt installation without the appropriate qualifications and knowledge of current UK wiring regulations.\u003c\/p\u003e","brand":"Victron Energy","offers":[{"title":"Default Title","offer_id":60201797714254,"sku":"REL100100000","price":674.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/3698\/8238\/files\/VoltaconSolar_-_REL100100000_-_Anti-islanding_relay_UFR1001E.webp?v=1784819029","url":"https:\/\/voltaconsolar.com\/products\/victron-anti-islanding-relay-ufr1001e","provider":"VoltaconSolar","version":"1.0","type":"link"}