{"product_id":"taian-cl-4l-ac-contactor-380v","title":"TAIAN CL-4L AC Contactor 380V","description":"\u003cstyle\u003e\n  \/* Koeed B2B Visual Identity *\/\n  .koeed-container {\n    line-height: 1.6;\n    color: #333;\n    width: 100%;\n  }\n  .koeed-title {\n    color: #0056b3;\n    border-left: 5px solid #16c8c8;\n    padding-left: 15px;\n    margin: 25px 0 15px;\n    font-size: 1.5rem;\n    font-weight: 700;\n  }\n  .koeed-subtitle {\n    color: #333;\n    font-size: 1.1rem;\n    margin-bottom: 10px;\n    font-weight: 600;\n  }\n  .koeed-highlight {\n    color: #16c8c8;\n    font-weight: bold;\n  }\n  .koeed-table-wrapper {\n    overflow-x: auto;\n    margin-bottom: 25px;\n  }\n  .koeed-table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 0.95rem;\n  }\n  .koeed-table th {\n    background-color: #f4fcfc;\n    color: #0056b3;\n    text-align: left;\n    padding: 12px;\n    border: 1px solid #eeeeee;\n  }\n  .koeed-table td {\n    padding: 10px;\n    border: 1px solid #eeeeee;\n  }\n  .koeed-table tr:nth-child(even) { background-color: #fafafa; }\n  .koeed-table tr:nth-child(odd) { background-color: #f4fcfc; }\n\n  .koeed-tag {\n    display: inline-block;\n    background: #16c8c8;\n    color: #fff;\n    padding: 2px 8px;\n    border-radius: 4px;\n    font-size: 0.85rem;\n    margin-right: 5px;\n  }\n\n  \/* Calculator Box *\/\n  .koeed-tool-container {\n    background: #ffffff;\n    border: 2px solid #16c8c8;\n    border-radius: 8px;\n    padding: 20px;\n    margin: 30px 0;\n  }\n  .koeed-input-group {\n    margin-bottom: 15px;\n  }\n  .koeed-input-group label {\n    display: block;\n    font-weight: bold;\n    font-size: 0.9rem;\n    margin-bottom: 5px;\n  }\n  .koeed-input-group input, .koeed-input-group select {\n    width: 100%;\n    padding: 10px;\n    border: 1px solid #ccc;\n    border-radius: 4px;\n    box-sizing: border-box;\n  }\n  .koeed-calc-btn {\n    background: #0056b3;\n    color: white;\n    border: none;\n    padding: 12px;\n    width: 100%;\n    border-radius: 4px;\n    cursor: pointer;\n    font-weight: bold;\n    transition: 0.3s;\n  }\n  .koeed-calc-btn:hover { background: #16c8c8; }\n  .koeed-result-area {\n    margin-top: 15px;\n    padding: 15px;\n    background: #f0fdfd;\n    border-left: 4px solid #16c8c8;\n    border-radius: 4px;\n    display: none;\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"koeed-container\"\u003e\n  \u003c!-- SEO Introduction --\u003e\n  \u003cp\u003e\n    The \u003cstrong\u003eTAIAN CL-4L AC Contactor\u003c\/strong\u003e is a robust electromechanical solution designed for 3-phase motor control and power switching in industrial environments. Specifically rated for \u003cstrong\u003e380V systems\u003c\/strong\u003e, the CL-4L series is renowned for its high electrical endurance and reliable switching in AC-3 utilization categories. This heavy-duty contactor is ideal for direct-on-line (DOL) starting of motors, heating control, and transformer switching.\n  \u003c\/p\u003e\n  \u003cdiv style=\"margin-bottom: 20px;\"\u003e\n    \u003cspan class=\"koeed-tag\"\u003eTAIAN Original\u003c\/span\u003e\n    \u003cspan class=\"koeed-tag\"\u003eAC-3 Rated\u003c\/span\u003e\n    \u003cspan class=\"koeed-tag\"\u003e3-Pole Contact System\u003c\/span\u003e\n    \u003cspan class=\"koeed-tag\"\u003e380V Coil\/Main Line\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Technical Specifications --\u003e\n  \u003ch2 class=\"koeed-title\"\u003eTechnical Specifications\u003c\/h2\u003e\n  \u003cdiv class=\"koeed-table-wrapper\"\u003e\n    \u003ctable class=\"koeed-table\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eElectrical Parameter\u003c\/th\u003e\n          \u003cth\u003eStandard Value (CL-4L)\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eModel Series\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eTAIAN CL-4L\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eRated Insulation Voltage (Ui)\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e690V\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eRated Operational Voltage (Ue)\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e380V \/ 415V AC\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eRated Operational Current (Ie)\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eApprox. 9A - 12A (AC-3 @ 380V)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eCoil Voltage Options (Uc)\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e220V, 380V, 440V (Model Specific)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eAuxiliary Contacts\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e1NO \/ 1NC (Standard Configuration)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eElectrical Life\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e\u0026gt; 1,000,000 Operations (AC-3)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eStandard Compliance\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eIEC 60947-4-1, GB\/T 14048.4\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Application \u0026 Reliability --\u003e\n  \u003ch2 class=\"koeed-title\"\u003eApplication \u0026amp; Reliability\u003c\/h2\u003e\n  \u003cp\u003e\n    The TAIAN CL-4L contactor features a high-performance electromagnetic core that minimizes vibration and heat generation. Its \u003cspan class=\"koeed-highlight\"\u003esilver alloy contacts\u003c\/span\u003e provide superior conductivity and resistance to oxidation, making it suitable for high-frequency switching tasks in factory automation.\n  \u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMotor Control:\u003c\/strong\u003e Primary control for 3-phase induction motors up to 4kW\/5.5HP at 380V.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDurability:\u003c\/strong\u003e Designed for harsh industrial cabinets with dust and vibration resistance.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCompact Design:\u003c\/strong\u003e Space-saving rail mounting (DIN rail) or screw mounting for flexible panel layout.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003c!-- Interactive Tool: Motor \u0026 Contactor Calculator --\u003e\n  \u003cdiv class=\"koeed-tool-container\"\u003e\n    \u003ch3 class=\"koeed-subtitle\" style=\"color: #0056b3; margin-top: 0;\"\u003eIndustrial Motor \u0026amp; Contactor Selection Calculator\u003c\/h3\u003e\n    \u003cp style=\"font-size: 0.85rem; margin-bottom: 15px;\"\u003e\n      Input your 3-phase motor power (380V) to calculate the Full Load Amps (FLA) and verify if the CL-4L contactor is suitable for your application.\n    \u003c\/p\u003e\n    \n    \u003cdiv class=\"koeed-input-group\"\u003e\n      \u003clabel for=\"koeed-power\"\u003eMotor Rated Power (kW):\u003c\/label\u003e\n      \u003cinput type=\"number\" id=\"koeed-power\" placeholder=\"e.g. 4.0\" step=\"0.1\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"koeed-input-group\"\u003e\n      \u003clabel for=\"koeed-pf\"\u003ePower Factor (cosφ):\u003c\/label\u003e\n      \u003cselect id=\"koeed-pf\"\u003e\n        \u003coption value=\"0.85\"\u003eStandard Motor (0.85)\u003c\/option\u003e\n        \u003coption value=\"0.80\"\u003eHigh Efficiency (0.80)\u003c\/option\u003e\n        \u003coption value=\"0.90\"\u003eOptimized Load (0.90)\u003c\/option\u003e\n      \u003c\/select\u003e\n    \u003c\/div\u003e\n\n    \u003cbutton class=\"koeed-calc-btn\" onclick=\"koeedCalcFLA()\"\u003eVerify Contactor Capacity\u003c\/button\u003e\n    \n    \u003cdiv id=\"koeed-result\" class=\"koeed-result-area\"\u003e\u003c\/div\u003e\n    \n    \u003cnoscript\u003e\n      \u003cp\u003eTool Logic: Formula used: I = P \/ (√3 * V * cosφ). Calculates the required current for a 380V 3-phase motor and suggests safety margins for contactor selection.\u003c\/p\u003e\n    \u003c\/noscript\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Troubleshooting FAQ --\u003e\n  \u003ch2 class=\"koeed-title\"\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdiv class=\"koeed-table-wrapper\"\u003e\n    \u003ctable class=\"koeed-table\"\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"width: 30%;\"\u003e\u003cstrong\u003eExcessive Humming?\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eCheck for dust or debris on the electromagnetic pole faces. Ensure the control voltage matches the coil rating precisely.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eContacts Welded?\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eUsually caused by high inrush current or using a contactor undersized for the load. Verify if the load exceeds the AC-3 rating of the CL-4L.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eCoil Overheating?\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eCheck if the control circuit is operating continuously in high ambient temperatures (\u0026gt;40°C) without proper ventilation.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\n\n\u003cscript\u003e\nfunction koeedCalcFLA() {\n  const p = parseFloat(document.getElementById('koeed-power').value);\n  const pf = parseFloat(document.getElementById('koeed-pf').value);\n  const v = 380;\n  const resultDiv = document.getElementById('koeed-result');\n\n  if (isNaN(p) || p \u003c= 0) {\n    alert(\"Please enter a valid power value.\");\n    return;\n  }\n\n  \/\/ Formula: I = P \/ (sqrt(3) * V * cos_phi)\n  \/\/ P in Watts, V in Volts\n  const fla = (p * 1000) \/ (Math.sqrt(3) * v * pf);\n  const recommendedRating = fla * 1.25; \/\/ 25% safety margin\n\n  resultDiv.style.display = 'block';\n  resultDiv.innerHTML = `\n    \u003cstrong\u003eCalculation Results:\u003c\/strong\u003e\u003cbr\u003e\n    Motor Full Load Amps (FLA): \u003cstrong\u003e${fla.toFixed(2)} A\u003c\/strong\u003e\u003cbr\u003e\n    Recommended Contactor Rating: \u003cstrong\u003e${recommendedRating.toFixed(2)} A\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\n    \u003cem\u003eEvaluation:\u003c\/em\u003e ${recommendedRating \u003c= 12 ? \n    \"\u003cspan style='color:green;'\u003e✓ TAIAN CL-4L is suitable for this load.\u003c\/span\u003e\" : \n    \"\u003cspan style='color:red;'\u003e⚠ Load exceeds CL-4L capacity. Please select a higher rated contactor (e.g. CL-11L or CL-12L).\u003c\/span\u003e\"}\n  `;\n}\n\u003c\/script\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [{\n    \"@type\": \"Question\",\n    \"name\": \"What causes excessive humming in TAIAN CL-4L contactors?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"Excessive humming is typically caused by debris on the electromagnetic pole faces or an incorrect coil voltage supply.\"\n    }\n  }, {\n    \"@type\": \"Question\",\n    \"name\": \"How do I prevent contacts from welding in a 380V system?\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"To prevent contact welding, ensure the contactor's AC-3 current rating is at least 25% higher than the motor's full load current (FLA).\"\n    }\n  }]\n}\n\u003c\/script\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"WebApplication\",\n  \"name\": \"Industrial Motor \u0026 Contactor Selection Calculator\",\n  \"operatingSystem\": \"Web\",\n  \"applicationCategory\": \"EngineeringTool\",\n  \"description\": \"Calculates 3-phase motor full load amps (FLA) at 380V to help engineers select the correct AC contactor size.\"\n}\n\u003c\/script\u003e","brand":"TAIAN","offers":[{"title":"Default Title","offer_id":44228103471289,"sku":"166420336751","price":116.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/8476\/7929\/files\/TAIAN_CL_4L_AC_Contactor_380V___TAIAN__1.webp?v=1774316427","url":"https:\/\/koeed.com\/pt\/products\/taian-cl-4l-ac-contactor-380v","provider":"KOEED","version":"1.0","type":"link"}