{"product_id":"victron-current-transformer-100a-50ma-multiplus-ii-1m","title":"Victron Current Transformer 100A:50mA for MultiPlus-II (1m) - CTR110000500","description":"\u003ch1 style=\"color: #f87c24;\"\u003eCurrent Transformer 100A:50mA for MultiPlus-II (1m) — CTR110000500\u003c\/h1\u003e\n\n\u003cp\u003eThis current transformer is designed for use with the Victron MultiPlus-II inverter\/charger. It provides accurate AC current measurement by converting up to 100A of AC current to a 50mA signal, allowing the MultiPlus-II to monitor grid or load current without direct high-current wiring into the monitoring circuit. The 1m cable length suits most standard installation configurations.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e100A:50mA ratio provides accurate, proportional current measurement across the full operating range.\u003c\/li\u003e\n  \u003cli\u003e1 metre cable length gives sufficient reach for most consumer unit and distribution board installations.\u003c\/li\u003e\n  \u003cli\u003eDesigned specifically for compatibility with the Victron MultiPlus-II inverter\/charger range.\u003c\/li\u003e\n  \u003cli\u003eSplit-core or clamp-style form factor allows installation around an existing conductor without breaking the circuit.\u003c\/li\u003e\n  \u003cli\u003eLightweight at 55g, making it straightforward to position and secure within an enclosure.\u003c\/li\u003e\n  \u003cli\u003eSKU CTR110000500 with GTIN 8719076044529 for verified product identification and traceability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eCurrent transformers are used in energy monitoring and power management applications where direct measurement of high AC currents is impractical or unsafe. This unit clamps around a live conductor and outputs a scaled-down 50mA signal proportional to the measured current, up to 100A. The MultiPlus-II uses this signal to track AC input or output current in real time, which is essential for accurate power management, grid interaction control, and energy monitoring via the GX ecosystem.\u003c\/p\u003e\n\n\u003cp\u003eThe 100A rating covers the typical single-phase load range found in residential and light commercial installations. Pairing this transformer with the MultiPlus-II enables features such as grid current limiting and ESS (Energy Storage System) control, where the inverter needs to know the actual current flowing at the grid connection point. Without accurate current measurement, these functions cannot operate correctly.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"border: 2px solid #f87c24; border-collapse: collapse; width: 100%;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color: #f87c24; color: #ffffff;\"\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003eSKU\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003eCTR110000500\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003eTransformation Ratio\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003e100A : 50mA\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003eCable Length\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003e1 metre\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003eCompatible Device\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003eVictron MultiPlus-II\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003eWeight\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003e55g\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003eGTIN\u003c\/td\u003e\n      \u003ctd style=\"border: 1px solid #f87c24; padding: 8px;\"\u003e8719076044529\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eGrid current monitoring in MultiPlus-II ESS (Energy Storage System) installations.\u003c\/li\u003e\n  \u003cli\u003eAC input current limiting to prevent grid overload in residential battery storage systems.\u003c\/li\u003e\n  \u003cli\u003eSingle-phase energy monitoring in off-grid and hybrid solar installations using Victron GX devices.\u003c\/li\u003e\n  \u003cli\u003eRetrofit current measurement in existing MultiPlus-II installations where grid sensing is required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eWhat Is Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x Current Transformer 100A:50mA with 1m cable (CTR110000500)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eInstallation Notes\u003c\/h3\u003e\n\u003cp\u003eThis current transformer must be installed by a qualified electrician. It is intended for use on AC conductors within a consumer unit or distribution board, which involves working in proximity to live mains voltages. Ensure the MultiPlus-II is correctly configured to recognise the CT input before commissioning. For grid-connected systems in the UK, the installation must comply with G98 or G99 requirements as applicable. Do not exceed the 100A rated primary current.\u003c\/p\u003e","brand":"Victron Energy","offers":[{"title":"Default Title","offer_id":47441545527630,"sku":"CTR110000500","price":19.88,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/3698\/8238\/files\/current-transformer-100a50ma-for-multiplus-ii-1m-ctr110000500-740258.jpg?v=1747937046","url":"https:\/\/voltaconsolar.com\/products\/victron-current-transformer-100a-50ma-multiplus-ii-1m","provider":"VoltaconSolar","version":"1.0","type":"link"}