{"product_id":"time-mark-corporation-272-120vac-current-sensor","title":"Time Mark Corporation 272-120VAC Current Sensor","description":"\u003ch3 data-section-id=\"17lc1ru\" data-start=\"0\" data-end=\"16\" class=\"PDq2pG_selectionAnchorContainer\"\u003eDescription:\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp data-start=\"17\" data-end=\"693\"\u003eThe Time Mark Corporation 272-120 Sensor is designed to detect current unbalance across three-phase power systems operating from a 120 VAC supply, helping protect motors and electrical equipment from damaging current imbalance conditions. Commonly installed in motor control centers, pump stations, compressors, conveyors, and industrial process equipment where accurate three-phase current monitoring is essential for reliable operation. Maintenance teams, OEMs, and system integrators use the 272-120 for replacement, repair, retrofit, and preventive maintenance to improve system reliability and minimize unexpected equipment failures. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"695\" data-end=\"712\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"713\" data-end=\"1270\"\u003eThe Time Mark 272-120 is a solid-state three-phase current unbalance detector that continuously monitors current levels on three-phase circuits or three individual single-phase lines and energizes its output relay when an adjustable unbalance threshold is exceeded. It is widely used in industrial automation systems, HVAC equipment, compressors, pumps, conveyors, and manufacturing machinery where early detection of current imbalance helps prevent motor damage, reduce downtime, and improve overall system protection. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"1272\" data-end=\"1301\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1302\" data-end=\"2101\"\u003e• Manufacturer: Time Mark Corporation\u003cbr data-start=\"1339\" data-end=\"1342\"\u003e• Manufacturer Part Number (MPN): 272-120\u003cbr data-start=\"1383\" data-end=\"1386\"\u003e• Product Type: 3-Phase Current Unbalance Detector\u003cbr data-start=\"1436\" data-end=\"1439\"\u003e• Supply Voltage: 115 VAC Nominal (100–130 VAC Operating Range)\u003cbr data-start=\"1502\" data-end=\"1505\"\u003e• Frequency: 50–400 Hz\u003cbr data-start=\"1527\" data-end=\"1530\"\u003e• Current Range: 1–5 A AC\u003cbr data-start=\"1555\" data-end=\"1558\"\u003e• Maximum Input Current: 10 A Continuous, 40 A for 2 Seconds\u003cbr data-start=\"1618\" data-end=\"1621\"\u003e• Unbalance Adjustment: 2%–25% Adjustable\u003cbr data-start=\"1662\" data-end=\"1665\" data-is-only-node=\"\"\u003e• Trip Delay: Adjustable 0.5–10 Seconds (±20%)\u003cbr data-start=\"1711\" data-end=\"1714\"\u003e• Output Contacts: SPDT, 10 A at 240 VAC Resistive\u003cbr data-start=\"1764\" data-end=\"1767\"\u003e• Reset Type: Automatic\u003cbr data-start=\"1790\" data-end=\"1793\"\u003e• Mounting: Surface Mount\u003cbr data-start=\"1818\" data-end=\"1821\"\u003e• Enclosure Material: ABS Plastic\u003cbr data-start=\"1854\" data-end=\"1857\"\u003e• Operating Temperature: -20°F to +131°F (-29°C to +55°C)\u003cbr data-start=\"1914\" data-end=\"1917\"\u003e• Weight: 1 lb. 1.5 oz. (0.50 kg)\u003cbr data-start=\"1950\" data-end=\"1953\"\u003e• Application: Three-phase motor protection, current imbalance detection, and industrial equipment monitoring. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"2103\" data-end=\"2127\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"2128\" data-end=\"2191\"\u003e• Time Mark 272-24\u003cbr data-start=\"2146\" data-end=\"2149\"\u003e• Time Mark 2722\u003cbr data-start=\"2165\" data-end=\"2168\"\u003e• Time Mark 274-5-120-A\u003c\/p\u003e","brand":"TIME","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51714028568878,"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_e9756216-fca8-42e8-8e2f-0742d3eec2d4.jpg?v=1770414245","url":"https:\/\/plgautomation.com\/products\/time-mark-corporation-272-120vac-current-sensor","provider":"PLG Automation ","version":"1.0","type":"link"}