{"product_id":"insulation-resistance-tester-500v","title":"Insulation Resistance Tester — 500V","description":"\u003cp\u003eYour multimeter tests continuity. That is not the same question as whether the insulation on a rewound motor will hold off mains voltage. Before you plug anything back in, you want to know the answer to the second question. That is what this does.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRange:\u003c\/strong\u003e 0.01 MΩ to 2 GΩ\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest voltages:\u003c\/strong\u003e 250 V \/ 500 V DC, selectable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplay:\u003c\/strong\u003e 3.75-digit backlit LCD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto-discharge:\u003c\/strong\u003e Yes — bleeds stored charge after every test\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeads:\u003c\/strong\u003e 3 ft IEC 61010 silicone, alligator clips included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e 6× AA batteries, included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase:\u003c\/strong\u003e ABS with rubber bumpers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.3 lb \/ 590 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1 year through our shop\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat it's for\u003c\/h2\u003e\u003cp\u003eRewound motors, rewound transformers, repaired appliances, vintage equipment coming back into service. Apply 500 V DC across the winding and ground, read the resistance. A healthy winding reads hundreds of megohms or better. A winding with compromised insulation tells you before the breaker does.\u003c\/p\u003e\u003cp\u003eThe auto-discharge circuit bleeds the stored charge off the winding after each test — you don't have to remember to do it, and you don't get bit by a capacitively charged coil when you pull the leads.\u003c\/p\u003e\u003ch2\u003eHonest note\u003c\/h2\u003e\u003cp\u003eHobbyist grade, not lab calibrated. If you're doing certification work or writing test records for a regulated environment, you need a different category of instrument. For making sure your rewound bench grinder won't bite you when you flip the switch, this is the right tool at the right price.\u003c\/p\u003e","brand":"T H Winders","offers":[{"title":"Default Title","offer_id":49063542685946,"sku":"RGCW-IRT-005","price":215.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/0417\/5098\/files\/image_71249e6f-8ecc-4ea6-92de-9446454ef9c1.png?v=1782219372","url":"https:\/\/thwinders.com\/products\/insulation-resistance-tester-500v","provider":"T H Winders","version":"1.0","type":"link"}