{"product_id":"beckhoff-el9227-6644-electronic-overcurrent-protection-terminal","title":"BECKHOFF EL9227-6644 Electronic Overcurrent Protection Terminal","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eEL9227-6644 (EL9227-6644)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis an advanced 2-channel electronic overcurrent protection terminal designed for 24 V DC power distribution networks. Featuring an optimized 4 A load rating per channel, this high-performance EtherCAT I\/O module delivers fast, precise tripping characteristics that mechanical circuit breakers cannot match.\u003c\/p\u003e\n\u003cp\u003eBy continuously analyzing output load currents and bus voltages, the module isolates localized electrical faults before they cascade through the control loop. It is extensively deployed in high-density automated warehouses, automotive assembly lines, and continuous process plants, safeguarding sensitive PLC processors, field instruments, and sensors while minimizing unscheduled facility downtime.\u003c\/p\u003e\n\u003ch3\u003eCircuit Protection and Intelligent Diagnostics\u003c\/h3\u003e\n\u003cp\u003eThe EL9227-6644 features extended functionalities that allow detailed parametrization of electronic fuse curves directly through the EtherCAT network. It incorporates an adjustable advance warning mechanism for output load conditions (ranging from 50% to 100%) and an adjustable low-voltage advance warning threshold (17 to 24 V DC) to flag system degradation before a complete shutdown happens.\u003c\/p\u003e\n\u003cp\u003eHardware safety is reinforced by hardware-level integrated 6 A slow-blow fail-safe elements per channel, reverse polarity protection, and overvoltage shutdown circuitry that triggers when voltages reach or exceed 32 V DC. A native LED button interface on the front panel provides local status visualization and manual channel reset capability, while channel 1 can route current additionally through the physical power contact rail.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEL9227-6644\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBECKHOFF\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGermany\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInterface Format\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eEtherCAT Terminal (E-bus communication)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24 V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eChannel Count\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2 protected outputs \/ 2 digital inputs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMaximum Input Current\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10 A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eRated Output Current\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4 A per channel\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eIntegrated Backup Fuse\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e6 A (T) | 6 A (T)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOvervoltage Cut-off\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGreater than or equal to 32 V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eUndervoltage Warning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAdjustable; 17 to 24 V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eLoad Advance Warning\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAdjustable; 50 % to 100 %\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCooling-Off Hold Time\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGreater than or equal to 10 s (temperature-dependent)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBackward Switch-off\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAdjustable; 3-stage\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eE-bus Current Consumption\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTyp. 80 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eElectrical Isolation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e500 V (E-bus to signal voltage)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDimensions (W x H x D)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e12 mm x 100 mm x 68 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApprox. 55 g\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0 to +55 deg C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-25 to +85 deg C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProtection Rating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIP20\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eApprovals and Standards\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCE, cULus, cURus\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eProduct FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the purpose of the 10-second thermal hold after an output switch-off?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe minimum 10-second hold time ensures the internal electronic switching components have sufficiently cooled down following a major overcurrent or short-circuit event. This thermal protection block prevents rapid, repetitive manual or automatic resets that could cause catastrophic thermal failure to the module or connected field lines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the \"3-stage backward switch-off\" feature achieve?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBackward switch-off is an intelligent diagnostic function that evaluates the severity and location of a fault. Depending on how the 3 stages are parameterized via TwinCAT, the module can prioritize isolating only the local channel, shutting down the upstream power feed, or executing a delayed trip to allow adjacent sub-circuits to clear transient inrush currents.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the EL9227-6644 be reset remotely after a short-circuit trip?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. While technicians can manually press the integrated front-panel LED button to clear a fault condition locally, the terminal maps complete control and status words directly into the EtherCAT master process image, enabling full software-driven resets from the central PLC program.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eField Engineering and Safety Manual\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eConductor Termination Protocol:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOpen the internal spring-cage clamps using a standard flat-head technical screwdriver. Strip all wiring lines to a length of 8 to 9 mm. The terminal accommodates solid (e) or stranded (st) wire sizes from AWG 28 to 14, and ferrule-insulated (f) conductors from AWG 26 to 16. Ensure no loose strands bridge across adjacent terminal points.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePower Bus Current Balancing:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNote that the total input current limit for the terminal is restricted to a maximum of 10 A. When planning panel layouts, ensure the cumulative continuous load of both monitored output channels plus any downstream feed via the shared power contacts does not exceed this 10 A limit under peak operating conditions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDIN Rail Assembly Mechanics:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSnap the module vertically onto a standard 35 mm DIN rail conforming to EN 60715. Ensure the interlocking double slot and key connections engage perfectly with adjacent terminals. This lock configuration is mandatory to guarantee stable E-bus backplane continuity and structural rigidity under heavy mechanical shock or vibration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106629149035,"sku":"EL9227-6644","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/el9227-6644-c2fxgxedrql.png?v=1776244588","url":"https:\/\/www.plcprotech.com\/products\/beckhoff-el9227-6644-electronic-overcurrent-protection-terminal","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}