{"product_id":"ut505a","title":"UT505A Basic Insulation Resistance DMM","description":"\u003ch1\u003eUNI-T UT505A Insulation Resistance Tester \u0026amp; Multimeter\u003c\/h1\u003e\n\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe UT505A puts a CAT IV 600 V insulation tester and a True-RMS digital multimeter in one handheld. It tests insulation resistance up to 20 GΩ at voltages from 50 V to 1000 V to IEC 61557, then switches to a 6000-count multimeter for AC\/DC voltage, resistance, capacitance, frequency, and low-resistance measurement — so the tool that confirms a winding is open is the same one that checks its insulation.\u003c\/p\u003e\n\u003cp\u003eInsulation work includes Polarization Index and DAR diagnostics, stepped-voltage testing, and automatic discharge, with 99 result groups stored on-board. 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\u003eInsulation resistance up to 20 GΩ, accuracy ±(1.5%+5)\u003c\/li\u003e\n\u003cli\u003eTest voltages: 50 V, 100 V, 250 V, 500 V, 1000 V (IEC 61557)\u003c\/li\u003e\n\u003cli\u003eTrue-RMS 6000-count digital multimeter built in\u003c\/li\u003e\n\u003cli\u003eAC\/DC voltage to 600 V; capacitance, frequency, low and general resistance\u003c\/li\u003e\n\u003cli\u003ePI and DAR insulation diagnostics\u003c\/li\u003e\n\u003cli\u003eStepped-voltage testing and automatic discharge\u003c\/li\u003e\n\u003cli\u003e99-group data storage\u003c\/li\u003e\n\u003cli\u003eCAT IV 600 V safety rating\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eUT505A Details\u003c\/h2\u003e\n\u003ch3\u003eTwo Instruments in One\u003c\/h3\u003e\n\u003cp\u003eThe UT505A combines a 1000 V insulation tester with a full True-RMS multimeter, so a single handheld covers both the insulation check and the routine electrical measurements around it — voltage, resistance, capacitance, frequency, and continuity-class low resistance.\u003c\/p\u003e\n\u003ch3\u003eInsulation Testing to 20 GΩ\u003c\/h3\u003e\n\u003cp\u003eFive test voltages from 50 V to 1000 V, a 20 GΩ measurement range, and IEC 61557 compliance cover insulation checks on motor windings, cables, and switchgear at low and medium voltage.\u003c\/p\u003e\n\u003ch3\u003ePI, DAR \u0026amp; Stepped Voltage\u003c\/h3\u003e\n\u003cp\u003eTimed PI and DAR diagnostics reveal moisture and contamination, while stepped-voltage testing stresses the dielectric in stages to surface marginal insulation a single reading would pass.\u003c\/p\u003e\n\u003ch3\u003eTrue-RMS Multimeter\u003c\/h3\u003e\n\u003cp\u003eA 6000-count True-RMS meter reads AC and DC accurately on distorted waveforms common around drives and non-linear loads, with the resistance, capacitance, and frequency functions a maintenance tech reaches for daily.\u003c\/p\u003e\n\u003ch3\u003eSafety \u0026amp; Field Build\u003c\/h3\u003e\n\u003cp\u003eAutomatic discharge clears stored charge after each insulation test, and the CAT IV 600 V rating suits work on distribution systems. Storage holds 99 result groups for later review.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eCompare the UT505 Series\u003c\/h2\u003e\n\u003ctable class=\"product-spec-table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003cth\u003eUT505A\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"\/products\/ut505b\"\u003eUT505B\u003c\/a\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax insulation resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e20 GΩ\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200 GΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAuto fuse check\u003c\/strong\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\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\u003eCombined insulation and electrical checks on motor windings, cables, and switchgear; preventive maintenance where one tool needs to do both jobs; and field troubleshooting that moves between insulation testing and routine multimeter measurements.\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 does the UT505A measure besides insulation resistance?\u003c\/h3\u003e\n\u003cp\u003eIt is a full True-RMS 6000-count multimeter — AC\/DC voltage, resistance, capacitance, frequency, and low resistance — in addition to insulation testing to 20 GΩ.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-faq-item\"\u003e\n\u003ch3\u003eWhat test voltages does it provide?\u003c\/h3\u003e\n\u003cp\u003e50 V, 100 V, 250 V, 500 V, and 1000 V, to IEC 61557.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-faq-item\"\u003e\n\u003ch3\u003eHow is the UT505A different from the UT505B?\u003c\/h3\u003e\n\u003cp\u003eThe UT505A reads insulation to 20 GΩ; the UT505B extends the range to 200 GΩ and adds an automatic fuse check.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"UNI-T","offers":[{"title":"Default Title","offer_id":46706527600924,"sku":"180605080022X","price":229.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/9208\/0924\/files\/UNI-T_UT505A-B_1_sq_0441fa5a-7097-4138-bbe4-dbc8abc7bd93.jpg?v=1743095415","url":"https:\/\/uni-trendus.com\/products\/ut505a","provider":"Uni-Trend US","version":"1.0","type":"link"}