{"product_id":"shelly-ct-400a-split-core-current-transformer-for-pro-3em-400-meter","title":"Shelly CT 400A Split-Core Current Transformer for Pro 3EM-400 Meter","description":"\u003cdiv\u003e\n\u003ch1\u003eShelly CT 400A Split-Core Current Transformer for Pro 3EM-400 Energy Meter\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eShelly CT 400A\u003c\/strong\u003e is a professional-grade \u003cstrong\u003esplit-core current transformer\u003c\/strong\u003e designed specifically for use with the \u003cstrong\u003eShelly Pro 3EM-400 three-phase energy meter\u003c\/strong\u003e. This precision measurement device accurately scales large alternating currents up to \u003cstrong\u003e400 A\u003c\/strong\u003e down to small, standardized values for safe and accurate energy monitoring in residential, commercial, and industrial applications. With its innovative \u003cstrong\u003esnap-on, screwless mounting system\u003c\/strong\u003e, installation is quick and hassle-free - no need to disconnect existing circuits.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e400 A capacity\u003c\/strong\u003e: Measures alternating currents up to 400 A per phase with precision\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSplit-core design\u003c\/strong\u003e: Opens easily to clamp around existing cables without disconnection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool-free installation\u003c\/strong\u003e: Snap-on mounting system for fast, screwless setup\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh accuracy\u003c\/strong\u003e: Transformation ratio of 3000:1 for precise current measurement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafe operation\u003c\/strong\u003e: Dielectric strength of 3000 VAC (60 s) for reliable isolation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable construction\u003c\/strong\u003e: Openable ferrite core with robust plastic housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eProfessional Energy Monitoring Made Simple\u003c\/h2\u003e\n\u003cp\u003eCurrent transformers are essential for monitoring high-current circuits safely. The \u003cstrong\u003eShelly CT 400A\u003c\/strong\u003e provides a secondary current that is accurately proportional to the current flowing in its primary circuit, while presenting negligible load. The \u003cstrong\u003e35 mm internal diameter\u003c\/strong\u003e accommodates most standard cables, and the \u003cstrong\u003eopenable ferrite core\u003c\/strong\u003e means you can install it without interrupting power to your circuits - perfect for retrofit installations in existing electrical panels.\u003c\/p\u003e\n\n\u003ch2\u003eWide Operating Range\u003c\/h2\u003e\n\u003cp\u003eDesigned for demanding environments, the CT 400A operates reliably in temperatures from \u003cstrong\u003e-10°C to 50°C\u003c\/strong\u003e and humidity levels up to \u003cstrong\u003e80% RH\u003c\/strong\u003e. Suitable for installations up to \u003cstrong\u003e2000 m altitude\u003c\/strong\u003e, this current transformer is built to professional standards for long-term accuracy and durability.\u003c\/p\u003e\n\n\u003ch2\u003eSeamless Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe CT 400A connects to your Shelly Pro 3EM-400 energy meter via a \u003cstrong\u003e2-pin MX3.0-2x1Y connector\u003c\/strong\u003e, ensuring secure and reliable data transmission. Each transformer includes a connection cable for straightforward installation. Use up to \u003cstrong\u003efour CT 400A transformers\u003c\/strong\u003e with your Shelly Pro 3EM-400 to monitor all three phases plus neutral for complete energy visibility.\u003c\/p\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThree-phase commercial and industrial energy monitoring\u003c\/li\u003e\n\u003cli\u003eSolar and wind energy production tracking\u003c\/li\u003e\n\u003cli\u003eBuilding management systems and submetering\u003c\/li\u003e\n\u003cli\u003eElectrical panel monitoring and load balancing\u003c\/li\u003e\n\u003cli\u003eEnergy consumption analysis and optimization\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 × Shelly CT 400A Split-Core Current Transformer\u003c\/li\u003e\n\u003cli\u003eConnection cable with MX3.0-2x1Y connector\u003c\/li\u003e\n\u003cli\u003eUser documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFull Specifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eCT 400A (Manufacturer model: CT315)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSplit-core current transformer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Primary Current\u003c\/td\u003e\n\u003ctd\u003e400 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Secondary Current\u003c\/td\u003e\n\u003ctd\u003e133.33 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransformation Ratio\u003c\/td\u003e\n\u003ctd\u003e3000:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Diameter for Conductor\u003c\/td\u003e\n\u003ctd\u003eØ 35 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDielectric Strength\u003c\/td\u003e\n\u003ctd\u003e3000 VAC (60 s)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCore Type\u003c\/td\u003e\n\u003ctd\u003eOpenable ferrite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-10°C to 50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAllowable Humidity\u003c\/td\u003e\n\u003ctd\u003e0 – 80% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Altitude\u003c\/td\u003e\n\u003ctd\u003e2000 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector\u003c\/td\u003e\n\u003ctd\u003eMX3.0-2x1Y, 2 pins\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (H × W × D)\u003c\/td\u003e\n\u003ctd\u003e84 × 54 × 48 mm ±0.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e290 g ±1 g (with cable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eShelly Pro 3EM-400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e5 years (Shelly Pro series devices)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\n\u003cp\u003e\u003cem\u003eSpecifications are sourced from the manufacturer product page and may be updated.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Shelly","offers":[{"title":"Default Title","offer_id":44390497026126,"sku":"PA-SHELLYCT400A","price":101.2,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/3134\/9838\/files\/Shelly_20400A_20Current_20Transformer_20Pro_203EM.png?v=1790328758","url":"https:\/\/projectorsaustralia.com.au\/products\/shelly-ct-400a-split-core-current-transformer-for-pro-3em-400-meter","provider":"Projectors Australia","version":"1.0","type":"link"}