{"product_id":"time-mark-corp-3-phase-monitor-b258b-120vac","title":"Time Mark Corp. 3-Phase Monitor B258B-120VAC","description":"\u003ch3 data-section-id=\"17lc1ru\" data-start=\"0\" data-end=\"16\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"17\" data-end=\"674\"\u003eThe Time Mark Corporation B258B-120VAC 3-Phase Monitor is designed to continuously monitor 120 VAC three-phase power systems for phase loss, phase reversal, and undervoltage conditions to help protect motors and other critical equipment. Commonly installed in HVAC systems, pump stations, compressors, industrial motor control panels, and manufacturing equipment where dependable three-phase power monitoring is essential. Maintenance technicians, OEMs, and system integrators use the B258B-120VAC 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=\"676\" data-end=\"693\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"694\" data-end=\"1194\"\u003eThe Time Mark Corporation B258B-120VAC is a solid-state three-phase monitor that supervises incoming three-phase power and de-energizes its output relay when phase loss, phase reversal, or undervoltage conditions are detected. It is widely used in water and wastewater facilities, HVAC equipment, conveyor systems, industrial pump controls, compressors, and process automation applications where continuous monitoring of three-phase electrical power is required. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"1196\" data-end=\"1225\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1226\" data-end=\"1929\"\u003e• Manufacturer: Time Mark Corporation\u003cbr data-start=\"1263\" data-end=\"1266\"\u003e• Manufacturer Part Number (MPN): B258B-120VAC\u003cbr data-start=\"1312\" data-end=\"1315\"\u003e• Product Type: 3-Phase Monitor\u003cbr data-start=\"1346\" data-end=\"1349\"\u003e• Nominal Voltage: 120 VAC (Phase-to-Phase)\u003cbr data-start=\"1392\" data-end=\"1395\"\u003e• Voltage Adjustment Range: 85–120 VAC\u003cbr data-start=\"1433\" data-end=\"1436\"\u003e• Frequency: 60 Hz\u003cbr data-start=\"1454\" data-end=\"1457\"\u003e• Phase Sensing: Phase Loss and Phase Reversal\u003cbr data-start=\"1503\" data-end=\"1506\"\u003e• Voltage Protection: Undervoltage Monitoring\u003cbr data-start=\"1551\" data-end=\"1554\" data-is-only-node=\"\"\u003e• Output Contacts: SPDT, 10 A at 240 VAC Resistive\u003cbr data-start=\"1604\" data-end=\"1607\"\u003e• Mounting: 8-Pin Socket Mount\u003cbr data-start=\"1637\" data-end=\"1640\"\u003e• Automatic Reset: Yes\u003cbr data-start=\"1662\" data-end=\"1665\"\u003e• Power Consumption: 1.4 W\u003cbr data-start=\"1691\" data-end=\"1694\"\u003e• Enclosure Material: ABS Plastic\u003cbr data-start=\"1727\" data-end=\"1730\"\u003e• Certifications: UL Recognized, CSA Certified\u003cbr data-start=\"1776\" data-end=\"1779\"\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=\"1931\" data-end=\"1955\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"1956\" data-end=\"2013\"\u003e• Time Mark B258BM\u003cbr data-start=\"1974\" data-end=\"1977\"\u003e• Time Mark 252B\u003cbr data-start=\"1993\" data-end=\"1996\"\u003e• Time Mark A258B\u003c\/p\u003e","brand":"Time","offers":[{"title":"New","offer_id":51714028667182,"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_790b8ae5-0e12-4a9c-901c-781b197f0f8d.jpg?v=1770414248","url":"https:\/\/plgautomation.com\/products\/time-mark-corp-3-phase-monitor-b258b-120vac","provider":"PLG Automation ","version":"1.0","type":"link"}