{"product_id":"ret670-1mrk004816-ac-abb-protection-relay-module","title":"RET670 1MRK004816-AC | ABB | Protection Relay Module","description":"\u003cp\u003eConfigured for high-speed transformer phase protection and local contact switching within high-voltage networks, the \u003cstrong\u003eABB 1MRK004816-AC\u003c\/strong\u003e (\u003cstrong\u003eRET670\u003c\/strong\u003e Protection Relay) provides direct physical\/electrical execution. The hardware monitoring engine samplers 300 - 500 VAC secondary voltage lines at 50\/60 Hz to command localized circuit isolation via dual single-pole double-throw (SPDT) electromechanical output pathways.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\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\u003eRET670 (1MRK004816-AC)\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\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eSweden\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eTransformer protection relay module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Range\u003c\/td\u003e\n\u003ctd\u003e300 - 500 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency\u003c\/td\u003e\n\u003ctd\u003e50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Accuracy\u003c\/td\u003e\n\u003ctd\u003e+\/- 1%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Contacts\u003c\/td\u003e\n\u003ctd\u003e2 SPDT (Single-Pole Double-Throw) configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Protocols\u003c\/td\u003e\n\u003ctd\u003eIEC 61850, Modbus, DNP3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Functions\u003c\/td\u003e\n\u003ctd\u003eSequence-of-events logging, internal fault record storage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eDIN rail compatible base infrastructure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock \u0026amp; Vibration\u003c\/td\u003e\n\u003ctd\u003eCompliant with IEC 60068 standard parameters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eStandard industrial platform rating (-25 to +70 deg C typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eDependent on discrete SPDT relay coil actuation states\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eFixed dimension layout matching Relion subrack chassis allocations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eStandard subrack panel weight specification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProfinet \/ EtherNet\/IP Deterministic Networks Performance\u003c\/h3\u003e\n\u003cp\u003eTo keep measurement latency within standardized substation thresholds, the internal analog conversion registries coordinate with specific backplane bus communication velocity parameters. The chassis structure scales mapping indices using standard I\/O density scaling adjustments, which maps telemetry packets over IEC 61850 protocol loops. Maintaining complete firmware flash compatibility between the embedded processor and network interface options is mandatory to ensure structured synchronization during heavy fault sequences.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the 1MRK004816-AC electromechanical SPDT outputs be serviced while the primary power module is live?\u003c\/p\u003e\n\u003cp\u003eA: No. Hot-swapping the output relays or changing terminal layout setups while the unit is energized is prohibited. Auxiliary power must be fully isolated to protect the processor components from damage caused by inductive arc reflection.\u003c\/p\u003e\n\u003cp\u003eQ: How are fault records stored inside the unit protected during an auxiliary power drop?\u003c\/p\u003e\n\u003cp\u003eA: The event logger and fault records are retained in non-volatile internal flash memory, preserving data without requiring continuous auxiliary power during grid anomalies.\u003c\/p\u003e\n\u003cp\u003eQ: What step is required if the communication board firmware version varies from the core base module?\u003c\/p\u003e\n\u003cp\u003eA: A firmware revision mismatch will trigger an internal watchdog fault, isolating the backplane bus connection and placing the protective outputs into a deactivated state.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Rail Grounding:\u003c\/strong\u003e Ensure the DIN rail or back panel framework is bonded to the main copper substation ground grid using low-impedance grounding straps. Clean paint or non-conductive coatings from all metal surfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Measuring Circuit Boundaries:\u003c\/strong\u003e Route the 300 - 500 VAC input connections through dedicated isolation circuit breakers or fuses to prevent overvoltage damage to the secondary sampling instrumentation cards during primary system faults.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInductive Signal Routing Controls:\u003c\/strong\u003e Run all network and communication wiring through physical trunk lines separated from parallel AC control or trip circuit wiring to minimize inductive signal distortion.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":53050472890677,"sku":"RET670 1MRK004816-AC","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/RET6701MRK004816-AC.png?v=1782811943","url":"https:\/\/www.5gplc.com\/products\/ret670-1mrk004816-ac-abb-protection-relay-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}