{"product_id":"ut513b-5kv-high-voltage-insulation-resistance-tester","title":"UT513B 5kV High-Voltage Insulation Resistance Tester","description":"\u003cstyle\u003e\n.ut-cat{color:#333;font-family:Arial,Helvetica,sans-serif;line-height:1.5;}\n.ut-cat h4{color:#1a1a1a;font-size:1.15em;margin:1.5em 0 .5em;padding-bottom:.25em;border-bottom:2px solid #ccc;}\n.ut-cat h2{color:#1a1a1a;font-size:1.25em;margin:1.2em 0 .4em;}\n.ut-cat h3{color:#222;font-size:1.05em;margin:1em 0 .3em;}\n.ut-cat p{margin:.6em 0;}\n.ut-cat ul{margin:.5em 0;padding-left:1.4em;}.ut-cat li{margin:.25em 0;}\n.ut-cat img{max-width:100%;height:auto;}\n.ut-cat table{border-collapse:collapse;width:100%;margin:.5em 0;}\n.ut-cat th,.ut-cat td{border:1px solid #ddd;padding:6px 10px;text-align:left;vertical-align:top;}\n.ut-cat td strong{color:#222;}\n\u003c\/style\u003e\n\u003cdiv class=\"ut-cat\"\u003e\n\n\u003ch4\u003eOverview\u003c\/h4\u003e\n\u003cdiv class=\"product-container\"\u003e\n\u003cp\u003eRated CAT IV 600 V, the UT513B applies selectable test voltages from 250 V to 5 kV and reads insulation resistance up to 2 TΩ — the headroom you need for medium-voltage motors, transformers, switchgear, and long cable runs. It runs the timed diagnostics that tell you whether insulation is actually healthy or just passing a spot check: Polarization Index, Dielectric Absorption Ratio, and a 10%-of-range stepped-voltage profile that surfaces weaknesses a single fixed-voltage reading misses.\u003c\/p\u003e\n\u003cp\u003eLeakage current shows live during the test, the circuit auto-discharges when you're done, and a high-voltage alarm flags an energized lead. The instrument stores 999 result sets and exports over USB for compliance records, and a 14.8 V 5200 mAh rechargeable pack carries a full day of field testing. It's backed by UNI-T's nearly 40 years of test-meter manufacturing.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFive selectable test voltages: 250 V, 500 V, 1000 V, 2500 V, 5000 V\u003c\/li\u003e\n\u003cli\u003eInsulation resistance up to 2 TΩ, accuracy ±(5%+5)\u003c\/li\u003e\n\u003cli\u003ePI (Polarization Index) and DAR timed diagnostics with 0 s–99 m 59 s timer\u003c\/li\u003e\n\u003cli\u003e10%-of-range stepped-voltage profiling for insulation stress testing\u003c\/li\u003e\n\u003cli\u003eLive leakage-current display and automatic discharge after test\u003c\/li\u003e\n\u003cli\u003eHigh-voltage output alarm\u003c\/li\u003e\n\u003cli\u003eComparison function for pass\/fail against a set threshold\u003c\/li\u003e\n\u003cli\u003e999-set storage with USB transfer to PC\u003c\/li\u003e\n\u003cli\u003eCAT IV 600 V; 14.8 V 5200 mAh rechargeable Li-ion\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eUT513B Details\u003c\/h2\u003e\n\u003ch3\u003eMulti-Voltage Insulation Testing\u003c\/h3\u003e\n\u003cp\u003eFive fixed test voltages from 250 V to 5 kV let you match the test to the asset — low voltages for control and electronics wiring, 2.5 kV and 5 kV for motor windings, transformers, and medium-voltage cable. Resistance reads up to 2 TΩ, so modern high-resistance insulation stays on-scale.\u003c\/p\u003e\n\u003ch3\u003ePI \u0026amp; DAR Diagnostics\u003c\/h3\u003e\n\u003cp\u003eThe UT513B times the resistance curve to calculate Polarization Index and Dielectric Absorption Ratio. Both separate genuinely dry, sound insulation from windings that read acceptable cold but are holding moisture or contamination — the difference between a motor you return to service and one you flag.\u003c\/p\u003e\n\u003ch3\u003eStepped-Voltage Profiling\u003c\/h3\u003e\n\u003cp\u003eBeyond a fixed-voltage reading, the UT513B steps the test voltage in 10% increments across the selected range. Watching how resistance responds as stress rises exposes marginal insulation that a single endpoint reading reports as a pass.\u003c\/p\u003e\n\u003ch3\u003eAuto-Discharge \u0026amp; High-Voltage Alarm\u003c\/h3\u003e\n\u003cp\u003eCapacitive test objects store charge. The UT513B discharges the circuit automatically when a test ends, and a high-voltage alarm warns whenever a lead is live — the safety basics you want on a 5 kV instrument.\u003c\/p\u003e\n\u003ch3\u003eData Logging \u0026amp; Transfer\u003c\/h3\u003e\n\u003cp\u003eStore up to 999 result sets on the instrument and move them to a PC over USB for reports and asset records. The comparison function sets a pass\/fail threshold so repeat tests stay consistent across equipment and across technicians.\u003c\/p\u003e\n\u003ch3\u003eField Build\u003c\/h3\u003e\n\u003cp\u003eA 14.8 V 5200 mAh rechargeable lithium pack runs a full testing day, and the CAT IV 600 V rating covers work on industrial distribution and outdoor utility equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eCompare the UT513 Series\u003c\/h2\u003e\n\u003ctable class=\"product-spec-table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003cth\u003eUT512E\u003c\/th\u003e\n\u003cth\u003eUT513A\u003c\/th\u003e\n\u003cth\u003eUT513B\u003c\/th\u003e\n\u003cth\u003eUT513C\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax test voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2500 V\u003c\/td\u003e\n\u003ctd\u003e5 kV\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e5 kV\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 kV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax insulation resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.5 TΩ\u003c\/td\u003e\n\u003ctd\u003e1 TΩ\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e2 TΩ\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 TΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage stepping (10% of range)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eYes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePI \/ DAR diagnostics\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePI\u003c\/td\u003e\n\u003ctd\u003ePI\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003ePI \/ DAR\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePI \/ DAR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCapacitance measurement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 µF\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e—\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.01–15 µF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eData storage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e999 sets\u003c\/td\u003e\n\u003ctd\u003e18 sets\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e999 sets\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e999 sets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBluetooth app\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e—\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSafety rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCAT IV 600 V\u003c\/td\u003e\n\u003ctd\u003eCAT III 600 V\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eCAT IV 600 V\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCAT IV 600 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eRotating-machinery winding insulation on motors and generators; transformer and switchgear maintenance; cable and feeder testing on medium-voltage runs; and panel and equipment commissioning where insulation has to be verified before energizing.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"product-faq-item\"\u003e\n\u003ch3\u003eWhat test voltages does the UT513B provide?\u003c\/h3\u003e\n\u003cp\u003eFive selectable steps: 250 V, 500 V, 1000 V, 2500 V, and 5000 V.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-faq-item\"\u003e\n\u003ch3\u003eWhat do PI and DAR tell me?\u003c\/h3\u003e\n\u003cp\u003eBoth are timed ratios that reveal moisture and contamination in insulation that a single resistance reading can miss.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-faq-item\"\u003e\n\u003ch3\u003eHow is the UT513B different from the UT513A and UT513C?\u003c\/h3\u003e\n\u003cp\u003eThe UT513A is the basic 1 TΩ \/ CAT III model; the UT513B reads to 2 TΩ with stepped-voltage profiling at CAT IV; the UT513C extends to 5 TΩ and adds capacitance measurement and a Bluetooth app.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTest Voltages\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e250 V \/ 500 V \/ 1000 V \/ 2500 V \/ 5000 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInsulation Resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eup to 2 TΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIR Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±(5% + 5)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDC Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30 to 1000 V, ±(3% + 5)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30 to 750 V, ±(3% + 5)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTest Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.01 nA to 3.5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShort-Circuit Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≈3.5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePI \/ DAR\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTimer Measurement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes (0s to 99m 59s)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStepping Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10% of range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eComparison Function\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAuto Discharge\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHigh Voltage Alarm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eData Storage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e999 sets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eData Communication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSafety Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCAT IV 600 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14.8 V 5200 mAh Li-ion (rechargeable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (L × W × D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e238 × 166 × 90.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≈1800 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\n\u003ch4\u003eDocumentation\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/storage.googleapis.com\/uni-tdocuments\/Meter%20Datasheets\/UT513B_UT513C_ds.pdf\"\u003eUT513B Datasheet\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/storage.googleapis.com\/uni-tdocuments\/Meter%20User%20Manuals\/UT513B-C_User_Manual.pdf\"\u003eUT513B User Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e","brand":"Uni-Trend US","offers":[{"title":"Default Title","offer_id":46595297935521,"sku":"180200200080X","price":699.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/5649\/2449\/files\/UNI-T_UT513B_6.jpg?v=1782259629","url":"https:\/\/aaashopus.com\/products\/ut513b-5kv-high-voltage-insulation-resistance-tester","provider":"SHOPSHOPSHOP","version":"1.0","type":"link"}