{"product_id":"time-mark-corporation-a258b-480vac-3-phase-monitor","title":"Time Mark Corporation A258B-480VAC 3-Phase Monitor","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=\"683\"\u003eThe Time Mark Corporation A258B-480VAC 3-Phase Monitor is designed to continuously monitor 480 VAC three-phase power systems for phase loss, phase reversal, and undervoltage conditions to protect motors and other critical electrical equipment. Commonly installed in industrial motor control panels, HVAC systems, compressors, pumps, conveyors, and manufacturing equipment where dependable three-phase power monitoring is essential. Maintenance technicians, OEMs, and system integrators use the A258B-480VAC for replacement, repair, retrofit, and preventive maintenance to reduce equipment damage and minimize unplanned downtime. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"685\" data-end=\"702\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"703\" data-end=\"1225\"\u003eThe Time Mark Corporation A258B-480VAC is a solid-state three-phase monitor that continuously supervises incoming three-phase power and de-energizes its output relay whenever phase loss, phase reversal, or undervoltage conditions are detected. It is widely used in industrial motor controls, water and wastewater facilities, HVAC equipment, compressors, conveyor systems, and process automation applications requiring reliable protection against abnormal three-phase power conditions. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"1227\" data-end=\"1256\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1257\" data-end=\"2021\"\u003e• Manufacturer: Time Mark Corporation\u003cbr data-start=\"1294\" data-end=\"1297\"\u003e• Manufacturer Part Number (MPN): A258B-480VAC\u003cbr data-start=\"1343\" data-end=\"1346\"\u003e• Product Type: 3-Phase Monitor\u003cbr data-start=\"1377\" data-end=\"1380\"\u003e• Nominal Voltage: 480 VAC (Phase-to-Phase)\u003cbr data-start=\"1423\" data-end=\"1426\"\u003e• Voltage Adjustment Range: 380–480 VAC\u003cbr data-start=\"1465\" data-end=\"1468\"\u003e• Frequency: 60 Hz\u003cbr data-start=\"1486\" data-end=\"1489\"\u003e• Power Consumption: 3.7 W\u003cbr data-start=\"1515\" data-end=\"1518\"\u003e• Phase Sensing: Phase Loss and Phase Reversal\u003cbr data-start=\"1564\" data-end=\"1567\" data-is-only-node=\"\"\u003e• Voltage Protection: Undervoltage Monitoring\u003cbr data-start=\"1612\" data-end=\"1615\"\u003e• Output Contacts: SPDT, 10 A at 240 VAC Resistive\u003cbr data-start=\"1665\" data-end=\"1668\"\u003e• Mounting: 8-Pin Socket Mount\u003cbr data-start=\"1698\" data-end=\"1701\"\u003e• Automatic Reset: Yes\u003cbr data-start=\"1723\" data-end=\"1726\"\u003e• Operating Temperature: -20°F to +131°F (-29°C to +55°C)\u003cbr data-start=\"1783\" data-end=\"1786\"\u003e• Enclosure Material: ABS Plastic\u003cbr data-start=\"1819\" data-end=\"1822\"\u003e• Certifications: UL Recognized, CSA Certified\u003cbr data-start=\"1868\" data-end=\"1871\"\u003e• Application: Three-phase motor protection, compressors, pumps, HVAC equipment, and industrial control systems. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"2023\" data-end=\"2047\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"2048\" data-end=\"2123\"\u003e• Time Mark A258BM-480VAC\u003cbr data-start=\"2073\" data-end=\"2076\"\u003e• Time Mark 2581-480\u003cbr data-start=\"2096\" data-end=\"2099\"\u003e• Time Mark B258B-480VAC\u003c\/p\u003e","brand":"Time","offers":[{"title":"New","offer_id":51714028732718,"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_a110d8c8-5cc2-4d35-bbed-47d7126c1479.jpg?v=1770414250","url":"https:\/\/plgautomation.com\/products\/time-mark-corporation-a258b-480vac-3-phase-monitor","provider":"PLG Automation ","version":"1.0","type":"link"}