{"product_id":"transformer-technologies-140-501-current-transformer","title":"Transformer Technologies 140-501 Current Transformer","description":"\u003ch3 data-section-id=\"17lc1ru\" data-start=\"0\" data-end=\"16\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"17\" data-end=\"712\"\u003eThe Transformer Technologies 140-501 \u003ca href=\"https:\/\/plgautomation.com\/collections\/power-supplies-protection\"\u003ecurrent transformer\u003c\/a\u003e is an instrument current transformer used in electrical power distribution and monitoring systems to reduce high primary current to a standardized secondary current for metering and protective relaying. Commonly installed in switchgear, motor control centers, power distribution panels, substations, and industrial electrical systems requiring accurate current measurement and circuit protection. Maintenance teams and system integrators use this current transformer for equipment replacement, electrical system upgrades, and preventive maintenance to ensure reliable power monitoring and protection. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"714\" data-end=\"731\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"732\" data-end=\"1236\"\u003eThe Transformer Technologies 140-501 current transformer is designed to provide an isolated 500:5 current ratio for metering and protective relays while maintaining electrical isolation from high-current circuits. It is widely used in industrial power distribution systems, utility substations, manufacturing facilities, commercial electrical installations, and energy monitoring applications where accurate current measurement and protective relaying are essential. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"1238\" data-end=\"1267\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1268\" data-end=\"2124\"\u003e• Manufacturer Part Number (MPN): 140-501\u003cbr data-start=\"1309\" data-end=\"1312\"\u003e• Manufacturer: Transformer Technologies \/ Instrument Transformers Inc.\u003cbr data-start=\"1383\" data-end=\"1386\"\u003e• Product Type: Current Transformer\u003cbr data-start=\"1421\" data-end=\"1424\"\u003e• Current Ratio: 500:5 A\u003cbr data-start=\"1448\" data-end=\"1451\"\u003e• Frequency: 50–400 Hz\u003cbr data-start=\"1473\" data-end=\"1476\"\u003e• Maximum System Voltage: 600 V\u003cbr data-start=\"1507\" data-end=\"1510\"\u003e• Basic Insulation Level (BIL): 10 kV\u003cbr data-start=\"1547\" data-end=\"1550\"\u003e• Relay Class: C20\u003cbr data-start=\"1568\" data-end=\"1571\" data-is-only-node=\"\"\u003e• ANSI Metering Class: 0.3B0.1 to 1.2B1.8\u003cbr data-start=\"1612\" data-end=\"1615\"\u003e• Continuous Thermal Rating Factor: 2.0 @ 30°C, 2.0 @ 55°C\u003cbr data-start=\"1673\" data-end=\"1676\"\u003e• Window Diameter: 8.13 in (206.5 mm)\u003cbr data-start=\"1713\" data-end=\"1716\"\u003e• Mounting Type: Window-Type Current Transformer\u003cbr data-start=\"1764\" data-end=\"1767\"\u003e• Approximate Weight: 20.6 lb (9.34 kg)\u003cbr data-start=\"1806\" data-end=\"1809\"\u003e• Function: Current Measurement and Protective Relaying\u003cbr data-start=\"1864\" data-end=\"1867\"\u003e• Compatible Components: Power Meters, Protective Relays, Switchgear, and Electrical Distribution Panels\u003cbr data-start=\"1971\" data-end=\"1974\"\u003e• Application Environment: Industrial Power Distribution, Utility Substations, and Commercial Electrical Systems \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"2126\" data-end=\"2150\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"2151\" data-end=\"2283\"\u003e• ABB 500:5 Window Current Transformer\u003cbr data-start=\"2189\" data-end=\"2192\"\u003e• GE Grid Solutions Model 140-501 Current Transformer\u003cbr data-start=\"2245\" data-end=\"2248\"\u003e• Eaton 500:5 Current Transformer\u003c\/p\u003e","brand":"Transformer","offers":[{"title":"New","offer_id":51714183889198,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_28e315f1-ec60-4395-a030-672a0e68582e.jpg?v=1770418485","url":"https:\/\/plgautomation.com\/products\/transformer-technologies-140-501-current-transformer","provider":"PLG Automation ","version":"1.0","type":"link"}