{"product_id":"milesight-ct303-self-powered-lorawan-smart-current-transformer","title":"Milesight CT303 | Self-Powered LoRaWAN® Smart Current Transformer (300A)","description":"\u003cdiv style=\"max-width: 800px; font-family: 'DM Sans', sans-serif; color: #2a2b2a; line-height: 1.6; font-size: 16px;\" class=\"shopiot-detailed-description\"\u003e\n\u003csection style=\"margin-bottom: 35px;\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eMilesight CT303\u003c\/strong\u003e is a specialized LoRaWAN® Smart Current Transformer designed for industrial and commercial energy management. Engineered for the \u003cstrong\u003e300A range\u003c\/strong\u003e, this model eliminates the most common barrier to IoT energy deployments: power supply. By utilizing \u003cstrong\u003einduced current power technology\u003c\/strong\u003e, the CT303 operates entirely without batteries or external wiring when connected to an active Phase A conductor. Its non-invasive split-core design allows for rapid installation without de-energizing facilities, making it the ideal tool for retrofitting energy intelligence into existing electrical infrastructure.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection style=\"margin-bottom: 35px;\"\u003e\n\u003ch3 style=\"color: #7765e3; font-size: 16px; margin-bottom: 18px; font-weight: bold; text-transform: uppercase;\"\u003eCore Capabilities\u003c\/h3\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 15px;\"\u003e\n\u003cdiv style=\"display: flex; gap: 12px; align-items: flex-start; padding: 15px; border-radius: 4px; border: 1px solid #f5f5f5; background: #fff;\"\u003e\n\u003cspan style=\"color: #7765e3;\"\u003e \u003csvg stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"2.5\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"20\" width=\"20\"\u003e\u003cpath d=\"M13 2L3 14h9l-1 8 10-12h-9l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \u003c\/span\u003e\n\u003cdiv style=\"font-size: 14px;\"\u003e\n\u003cstrong style=\"display: block; color: #2a2b2a;\"\u003eEnergy-Autonomous\u003c\/strong\u003e \u003cspan style=\"color: #555;\"\u003eSelf-powers via induced current from the testing conductor, ensuring zero maintenance over the device lifecycle.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; gap: 12px; align-items: flex-start; padding: 15px; border-radius: 4px; border: 1px solid #f5f5f5; background: #fff;\"\u003e\n\u003cspan style=\"color: #7765e3;\"\u003e \u003csvg stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"2.5\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"20\" width=\"20\"\u003e\u003cpolyline points=\"22 12 18 12 15 21 9 3 6 12 2 12\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e \u003c\/span\u003e\n\u003cdiv style=\"font-size: 14px;\"\u003e\n\u003cstrong style=\"display: block; color: #2a2b2a;\"\u003eHigh-Fidelity Sampling\u003c\/strong\u003e \u003cspan style=\"color: #555;\"\u003eFeatures a 3.3 kHz sampling frequency for precise RMS current and accumulated usage reporting.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; gap: 12px; align-items: flex-start; padding: 15px; border-radius: 4px; border: 1px solid #f5f5f5; background: #fff;\"\u003e\n\u003cspan style=\"color: #7765e3;\"\u003e \u003csvg stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"2.5\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"20\" width=\"20\"\u003e\u003cpath d=\"M14 14.76V3.5a2.5 2.5 0 0 0-5 0v11.26a4.5 4.5 0 1 0 5 0z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \u003c\/span\u003e\n\u003cdiv style=\"font-size: 14px;\"\u003e\n\u003cstrong style=\"display: block; color: #2a2b2a;\"\u003eCable Temp Sensing\u003c\/strong\u003e \u003cspan style=\"color: #555;\"\u003eSupports an external NTC sensor to monitor cable temperature (-20°C to 100°C) for failure prevention.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; gap: 12px; align-items: flex-start; padding: 15px; border-radius: 4px; border: 1px solid #f5f5f5; background: #fff;\"\u003e\n\u003cspan style=\"color: #7765e3;\"\u003e \u003csvg stroke-linejoin=\"round\" stroke-linecap=\"round\" stroke-width=\"2.5\" stroke=\"currentColor\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"20\" width=\"20\"\u003e\u003cpath d=\"M16 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2\"\u003e\u003c\/path\u003e\u003ccircle r=\"4\" cy=\"7\" cx=\"8.5\"\u003e\u003c\/circle\u003e\u003cpolyline points=\"17 11 19 13 23 9\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e \u003c\/span\u003e\n\u003cdiv style=\"font-size: 14px;\"\u003e\n\u003cstrong style=\"display: block; color: #2a2b2a;\"\u003eNon-Invasive Clamp\u003c\/strong\u003e \u003cspan style=\"color: #555;\"\u003eSplit-core clamp design eliminates the need for rewiring, drastically reducing installation labor and downtime.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection style=\"margin-bottom: 35px; background-color: #fafafa; border-left: 4px solid #7765E3; padding: 20px; border-radius: 2px;\"\u003e\n\u003ch3 style=\"color: #7765e3; font-size: 16px; margin-top: 0; margin-bottom: 12px; font-weight: bold; text-transform: uppercase;\"\u003eEnergy Management Use Cases\u003c\/h3\u003e\n\u003cdiv style=\"margin: 0; font-size: 15px;\"\u003e\n\u003cdiv style=\"margin-bottom: 10px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"color: #7765e3; margin-right: 8px; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cspan\u003e\u003cstrong\u003eSmart Building Sub-metering:\u003c\/strong\u003e Allocate energy costs to specific tenants or departments with high-accuracy phase monitoring.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 10px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"color: #7765e3; margin-right: 8px; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cspan\u003e\u003cstrong\u003ePredictive Maintenance:\u003c\/strong\u003e Detect early signs of machine failure by analyzing current fluctuations and cable temperature rises.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 0; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"color: #7765e3; margin-right: 8px; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cspan\u003e\u003cstrong\u003eLoad Optimization:\u003c\/strong\u003e Identify peak usage periods and inefficiencies in industrial motors and HVAC systems.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch3 style=\"color: #7765e3; font-size: 16px; margin-bottom: 10px; font-weight: bold; text-transform: uppercase;\"\u003eTechnical Integration\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; color: #555;\"\u003eThe CT303 is fully compliant with \u003cstrong\u003eLoRaWAN® Class A\u003c\/strong\u003e and supports global frequency bands (EU868, US915, etc.). It features \u003cstrong\u003eOver-the-Air Firmware Updates (FUOTA)\u003c\/strong\u003e and threshold alarm capabilities for instant notification of electrical anomalies. When powered by the testing conductor, it requires a minimum primary current (starting from 15A $A_{rms}$ depending on reporting interval) to report data; for lower current measurement, the unit can be powered via its \u003cstrong\u003eUSB Type-C port\u003c\/strong\u003e. For large-scale facility retrofits, contact the \u003cstrong\u003eShopIoT\u003c\/strong\u003e engineering team for system architecture support.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Milesight","offers":[{"title":"EU868","offer_id":56566752149828,"sku":"CT303-868M","price":118.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0418\/3749\/4423\/files\/MILESIGHT_CT303_LORAWAN_SMART_CURRENT_TRANSFORMER-1.jpg?v=1774542063","url":"https:\/\/shopiot.eu\/products\/milesight-ct303-self-powered-lorawan-smart-current-transformer","provider":"shopiot","version":"1.0","type":"link"}