{"product_id":"3-phase-sequence-rotation-tester-led-buzzer-indicator-td-led02","title":"3-Phase Sequence Rotation Tester LED \u0026 Buzzer Indicator TD-LED02","description":"\n\u003ch2\u003e3-Phase Sequence Rotation Tester with LED \u0026amp; Buzzer Indicator – 2-Pack (TD-LED02)\u003c\/h2\u003e\n\u003cp\u003eQuickly and confidently verify three-phase AC line rotation and sequence with this compact, professional-grade Phase Sequence Tester. Whether you're commissioning motors, control panels, or electrical systems, the TD-LED02 delivers instant visual and audible feedback — no batteries required. Made in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstant LED Indication:\u003c\/strong\u003e Green LED + intermittent beep for correct phase sequence; Red LED + continuous beep for reverse phase sequence — results at a glance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Operating Voltage:\u003c\/strong\u003e Supports 60V–600V AC three-phase systems for broad compatibility across industrial and commercial applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Frequency Range:\u003c\/strong\u003e Operates across 20Hz–400Hz, making it suitable for variable-frequency drive (VFD) applications and non-standard supply frequencies.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOpen-Phase Detection:\u003c\/strong\u003e Clearly indicates whether any phase is open, helping you troubleshoot wiring issues quickly.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAlligator Clip Test Leads:\u003c\/strong\u003e Double-insulated, colour-coded leads (~80cm) with alligator clips for secure, safe connections to control panel terminals:\n    \u003cul\u003e\n      \u003cli\u003eYellow — U phase (L1\/R)\u003c\/li\u003e\n      \u003cli\u003eGreen — V phase (L2\/S)\u003c\/li\u003e\n      \u003cli\u003eRed — W phase (L3\/T)\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo Battery Needed:\u003c\/strong\u003e Powered entirely by the line under test — no battery to replace or forget.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePortable \u0026amp; Lightweight:\u003c\/strong\u003e Compact 8 × 6 × 2.4 cm body weighs just 136g; comes with a protective carrying pouch for easy transport to job sites.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Accuracy:\u003c\/strong\u003e Accuracy Class 0.1 for reliable, repeatable measurements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e60V–600V AC (three-phase)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLimit Support Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2000V\/min (Impulse: 4000V)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20Hz–400Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccuracy Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Continuous Use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e60 min @ 200V AC \/ 4 min @ 600V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTest Lead Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~80cm (double-insulated)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8 × 6 × 2.4 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e136g per unit\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePlastic housing\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box (2-Pack)\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2 × TD-LED02 Phase Sequence Tester\u003c\/li\u003e\n  \u003cli\u003e6 × Alligator Clips (colour-coded)\u003c\/li\u003e\n  \u003cli\u003e2 × Protective Carrying Pouch\u003c\/li\u003e\n  \u003cli\u003e2 × User Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Tools You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10-in-1-multi-functional-bone-wrench-hex-socket-spanner-portable-repair-hand-tool-for-bicycle-motorcycle-furniture-assembly\"\u003e10-in-1 Multi-Functional Bone Wrench – Portable Repair Hand Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/16-in-1-multi-function-bike-repair-tool-portable-folding-hex-wrench-set-for-bicycle-motorcycle-furniture-maintenance-hand-tools\"\u003e16-in-1 Multi-Function Folding Hex Wrench Set – Portable Repair Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/3-in-1-precision-eyeglass-screwdriver-keychain-portable-mini-screwdriver-for-glasses-watch-spectacles-repair-hand-tool\"\u003e3-in-1 Precision Eyeglass Screwdriver Keychain – Portable Mini Screwdriver\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Does the 3-phase sequence tester require batteries to operate?\u003c\/h4\u003e\n\u003cp\u003eA: No — the TD-LED02 phase sequence tester is powered directly by the three-phase AC line under test (60V–600V AC). No batteries are needed, making it ready to use straight out of the pouch.\u003c\/p\u003e\n\u003ch4\u003eQ: What do the LED colours and buzzer tones mean on this phase sequence indicator?\u003c\/h4\u003e\n\u003cp\u003eA: A \u003cstrong\u003egreen LED with an intermittent beep\u003c\/strong\u003e indicates a correct (positive) phase sequence, while a \u003cstrong\u003ered LED with a continuous beep\u003c\/strong\u003e indicates a reversed phase sequence. The LEDs also show whether any phase is open, allowing fast fault identification.\u003c\/p\u003e\n\u003ch4\u003eQ: What voltage and frequency ranges are supported by the TD-LED02?\u003c\/h4\u003e\n\u003cp\u003eA: This phase sequence tester supports operating voltages from 60V to 600V AC (three-phase) and frequencies from 20Hz to 400Hz, making it compatible with standard power systems as well as variable-frequency drive (VFD) outputs.\u003c\/p\u003e\n\u003ch4\u003eQ: How long can I use the tester continuously at high voltages?\u003c\/h4\u003e\n\u003cp\u003eA: Maximum continuous use time is 60 minutes at 200V AC and 4 minutes at 600V AC. Always allow the unit to cool between extended testing sessions at higher voltages.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Does the 3-phase sequence tester require batteries to operate?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — the TD-LED02 phase sequence tester is powered directly by the three-phase AC line under test (60V–600V AC). 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