{"product_id":"shelly-current-transformer-120a","title":"Shelly Current Transformer 120A","description":"\u003cp\u003eThe Shelly Current Transformer 120 A is a robust clamp-style energy monitoring accessory intended for use with compatible smart-home energy meters. Its split-core design allows it to clamp around a single conductor — such as a main feed or heavy-duty circuit — without interrupting wiring, offering a safe and non-intrusive solution for current measurement. Designed for both domestic and light-commercial contexts, this transformer enables accurate tracking of electrical load on high-current circuits.\u003c\/p\u003e \u003cp\u003eWith a maximum primary current rating of 120 A, the transformer is well suited for monitoring entire household supply lines, large appliances, heating circuits, or distribution board outputs. When paired with an appropriate energy-monitoring module, it delivers real-time data on current draw and energy consumption. This ability to observe circuit load makes the unit valuable for energy management, load balancing, safety monitoring and automation scenarios.\u003c\/p\u003e \u003ch2\u003eKey Features\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003eHigh-Capacity Current Measurement:\u003c\/b\u003e Capable of measuring currents up to 120 A — suitable for whole-house feeds, heating circuits or heavy-duty equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eSplit-Core Clamp Design:\u003c\/b\u003e Opens and closes around a conductor without disconnecting wiring, enabling easy retrofit installation even in live circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eNon-intrusive and Safe Installation:\u003c\/b\u003e No need to cut or rewire cables; the clamp simply encloses an existing conductor for measurement.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eCompact and Space-Saving Form Factor:\u003c\/b\u003e Slim clamp body fits within consumer units, distribution boards or service panels without occupying excessive space.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eCompatibility with Energy-Monitoring Modules:\u003c\/b\u003e Designed to interface with compatible energy meters to provide real-time current and energy data for monitoring, logging or automation tasks.\u003c\/li\u003e \u003c\/ul\u003e \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e \u003cul\u003e \u003cli\u003eRated primary current: 120 A (AC)\u003c\/li\u003e \u003cli\u003eCore type: Split-core current transformer\u003c\/li\u003e \u003cli\u003eConductor aperture: Suitable for single conductors up to typical mains cable diameters\u003c\/li\u003e \u003cli\u003eApplication: Current measurement only — requires a compatible energy-monitoring module for data processing and display\u003c\/li\u003e \u003cli\u003eInstallation method: Clamp around live conductor; no need to cut or disconnect wiring\u003c\/li\u003e \u003c\/ul\u003e \u003ch2\u003eUse Cases\u003c\/h2\u003e \u003cul\u003e \u003cli\u003eMonitoring total current draw of a household mains feed or distribution board to track consumption or detect overloads\u003c\/li\u003e \u003cli\u003eMeasuring power usage of high-demand circuits such as heating systems, boilers, water pumps or heavy appliances without intrusive wiring changes\u003c\/li\u003e \u003cli\u003eIntegrating with a smart-home energy-monitoring system to log daily, weekly or monthly energy usage for budgeting or efficiency analysis\u003c\/li\u003e \u003cli\u003eUsing in renewable-energy or solar installations to track feed-in or draw-out currents for safety, monitoring and load management\u003c\/li\u003e \u003cli\u003eImplementing protective automation — such as alerts or load shedding — triggered when current exceeds defined thresholds to enhance safety and prevent overload damage\u003c\/li\u003e \u003c\/ul\u003e","brand":"Parts To You","offers":[{"title":"Default Title","offer_id":52913219174729,"sku":"SHELLY-CURRENT-TRANSFORMER","price":15.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/8343\/5081\/files\/shelly-current-transformer-2.jpg?v=1762856592","url":"https:\/\/www.partstoyou.com\/products\/shelly-current-transformer-120a","provider":"Parts To You","version":"1.0","type":"link"}