{"product_id":"abb-ref542plus-1vcr007346-feeder-terminal","title":"ABB REF542PLUS 1VCR007346 Feeder Terminal","description":"\u003cdiv class=\"sfContentBlock\"\u003e\n\u003cp\u003eConfigured for feeder, transformer, and motor protection in medium-voltage switchgear, the \u003cstrong\u003eABB REF542plus (1VCR007346)\u003c\/strong\u003e (\u003cstrong\u003eREF542plus\u003c\/strong\u003e feeder terminal) provides integrated measurement, monitoring, protection, control, self-diagnostics, and substation communication.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eREF542plus (1VCR007346)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eABB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eREF542plus Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDevice Type\u003c\/td\u003e\n\u003ctd\u003eFeeder Terminal \/ Multifunction Digital Protection Relay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated System Voltage\u003c\/td\u003e\n\u003ctd\u003e12 kV to 36 kV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Current Range\u003c\/td\u003e\n\u003ctd\u003e630 A to 5000 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Frequency\u003c\/td\u003e\n\u003ctd\u003e50 Hz \/ 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Functions\u003c\/td\u003e\n\u003ctd\u003eOvercurrent, directional overcurrent, earth\/ground fault, overvoltage, undervoltage, thermal overload, phase imbalance, short circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement\u003c\/td\u003e\n\u003ctd\u003eCurrent, voltage, active power, reactive power, energy, frequency, power factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eModbus RTU, IEC 60870-5-103, IEC 61850 GOOSE, RS485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEvent Recording\u003c\/td\u003e\n\u003ctd\u003eUp to 30 recent events with timestamp and RMS current values\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisturbance Recording\u003c\/td\u003e\n\u003ctd\u003eUp to 7 analog channels and 32 binary signals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReal-Time Clock\u003c\/td\u003e\n\u003ctd\u003eInternal RTC with supercapacitor backup; timekeeping maintained for \u0026gt;= 2 hours during DC power failure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 deg C to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-25 deg C to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e5% to 95%, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Protection\u003c\/td\u003e\n\u003ctd\u003eIP20; front panel\/casing protection depends on mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e483 mm x 265 mm x 180 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e10.0 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProtection, Measurement, and Control Functions\u003c\/h3\u003e\n\u003cp\u003eThe REF542plus combines bay control and protection functions in one feeder terminal. Protection functions include phase overcurrent, directional overcurrent, earth\/ground fault, voltage protection, thermal overload, phase imbalance, and short-circuit detection.\u003c\/p\u003e\n\u003cp\u003eMeasurement processing covers current, voltage, active and reactive power, energy, frequency, and power factor. The event log stores up to 30 recent events with associated timestamps and RMS current values. The disturbance recorder supports up to 7 analog channels and 32 binary signals.\u003c\/p\u003e\n\u003cp\u003eCommunication interfaces include Modbus RTU, IEC 60870-5-103, IEC 61850 GOOSE messaging, and RS485 for integration with substation automation and supervisory systems.\u003c\/p\u003e\n\u003ch3\u003eIndustrial Control and Firmware Compatibility\u003c\/h3\u003e\n\u003cp\u003eAs an ABB digital bay control and protection unit, the REF542plus combines measurement, monitoring, control, protection, communication, and self-diagnostic functions within a single hardware platform. Its integrated communication functions allow connection to ABB or third-party substation automation systems.\u003c\/p\u003e\n\u003cp\u003eThe supplied documentation identifies the REF542plus as a not-active product since 2020. Firmware compatibility, configuration software requirements, and replacement engineering should therefore be verified against the installed terminal revision before commissioning or retrofit work.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003eQ: How long does the internal RTC retain time during a DC power failure?\u003cbr\u003eA: The internal RTC uses a supercapacitor backup and maintains timekeeping for \u0026gt;= 2 hours during DC power failure.\u003c\/p\u003e\n\u003cp\u003eQ: What disturbance recording capacity is specified for the REF542plus?\u003cbr\u003eA: The disturbance recorder supports up to 7 analog channels and 32 binary signals.\u003c\/p\u003e\n\u003cp\u003eQ: Which communication protocols are specified for the terminal?\u003cbr\u003eA: The supplied data specifies Modbus RTU, IEC 60870-5-103, IEC 61850 GOOSE messaging, and RS485.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVerify the REF542plus part number, hardware revision, terminal configuration, and protection settings against the approved switchgear documentation before installation.\u003c\/li\u003e\n\u003cli\u003eConfirm the rated system voltage and current range of the installed application before connecting measurement circuits.\u003c\/li\u003e\n\u003cli\u003eRoute current and voltage measurement wiring separately from high-current power conductors where practical to reduce electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003eUse shielded communication cabling where required by the site communication design, and terminate shields according to the plant grounding specification.\u003c\/li\u003e\n\u003cli\u003eVerify RS485 polarity, termination, cable routing, and grounding before energizing the communication interface.\u003c\/li\u003e\n\u003cli\u003eConfirm CT and VT circuit wiring and polarity before enabling protection functions.\u003c\/li\u003e\n\u003cli\u003eCheck the enclosure and mounting arrangement against the specified IP20 protection condition and the actual switchgear installation.\u003c\/li\u003e\n\u003cli\u003eAllow the terminal to reach the specified operating temperature range before commissioning.\u003c\/li\u003e\n\u003cli\u003eBecause the REF542plus is identified as inactive since 2020, verify available engineering tools, firmware compatibility, configuration files, and system interfaces before replacing or reconfiguring an installed unit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":52752207216925,"sku":"REF542PLUS-1VCR007346","price":9.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/5387\/3181\/files\/REF542PLUS-2RCA029395_1000.jpg?v=1787201440","url":"https:\/\/www.6gcontrols.com\/products\/abb-ref542plus-1vcr007346-feeder-terminal","provider":"6G Controls","version":"1.0","type":"link"}