{"product_id":"beckhoff-er2624-0002-ethercat-box-4-channel-relay-output-module","title":"Beckhoff ER2624-0002 EtherCAT Box 4-Channel Relay Output Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eFunctioning as a ruggedized distributed I\/O solution, the \u003cstrong\u003eBeckhoff ER2624-0002\u003c\/strong\u003e industrial Ethernet module coordinates digital signal relaying directly in harsh field environments. Encased in a robust zinc die-cast housing, this IP67-rated \u003cstrong\u003eEtherCAT Box\u003c\/strong\u003e provides four potential-free relay make contacts (normally open) designed to switch electromechanical loads up to 2 A DC or 0.5 A AC. By implementing direct fieldbus control without an electrical control cabinet, this module shortens cable runs, minimizes signal degradation, and optimizes system layout in decentralised automation topologies.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 20px; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePotential-Free Switching:\u003c\/strong\u003e Offers complete electrical isolation of 500 V between the control electronics and the load circuits.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptimized Relay Outputs:\u003c\/strong\u003e Four independent make (NO) contacts capable of switching ohmic, inductive, and lamp loads.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRugged Die-Cast Enclosure:\u003c\/strong\u003e Heavy-duty zinc housing provides superior mechanical resistance and high-grade electromagnetic shielding.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Durability Design:\u003c\/strong\u003e Engineered for extreme service life, achieving up to 100,000,000 mechanical operating cycles.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDirect Field Connection:\u003c\/strong\u003e Integrated dual M8 shielded screw-type connectors for the EtherCAT bus interface alongside standard M12 output interfaces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 20px; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eDecentralized control of low-voltage solenoids, contactors, and pneumatic valves.\u003c\/li\u003e\n  \u003cli\u003eWet processing areas, machine tools, and manufacturing lines requiring IP65\/66\/67 protection ratings.\u003c\/li\u003e\n  \u003cli\u003eTest benches and automated assembly systems utilizing distributed switching structures.\u003c\/li\u003e\n  \u003cli\u003eOn-machine indicator lighting and audible alarm signaling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0;\"\u003e\n        \u003cth style=\"text-align: left; padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 10px; font-weight: bold;\"\u003eSpecification\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eBeckhoff Automation\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eModel \/ Part Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eER2624-0002\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eFieldbus Protocol\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eEtherCAT\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eNumber of Outputs\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e4 x make contacts (potential-free)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eRated Load Voltage\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e25 V AC \/ 30 V DC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eOhmic Switching Current\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e0.5 A AC \/ 2 A DC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eMinimum Permitted Load\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e10 microamps at 10 mV DC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eBus Interface\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e2 x M8 socket, shielded, screw type\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eOutput Connections\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eM12 x 1, 5-pin, a-coded\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eNominal Output Voltage\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e24 V DC (-15% \/ +20%)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eCurrent Consumption (from Us)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e120 mA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eOperating Cycles (Mechanical)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e1 x 10^8 minimum\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eOperating Cycles (Electrical)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e2 x 10^5 minimum (at 1 A \/ 30 V DC)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eElectrical Isolation\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e500 V\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eProtection Rating\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eIP65 \/ IP66 \/ IP67 (conforms to EN 60529)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eOperating \/ Storage Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e-25 to +60 degC \/ -40 to +85 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eVibration \/ Shock Resistance\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eConforms to EN 60068-2-6 \/ EN 60068-2-27\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eEMC Immunity \/ Emission\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eConforms to EN 61000-6-2 \/ EN 61000-6-4\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eNet Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e265 g\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e2.0 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eApprovals\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eCE, UL\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eConnections and Interfaces\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0;\"\u003e\n        \u003cth style=\"text-align: left; padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eInterface Location\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eConnector Type\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 10px; font-weight: bold;\"\u003ePin Assignment \/ Signal\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; border-right: 1px solid #e2e8f0;\"\u003e\u003cstrong\u003eEtherCAT Input\/Output\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border-right: 1px solid #e2e8f0;\"\u003e2 x M8 socket, 4-pin, shielded\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eTx+, Rx+, Tx-, Rx- (standard EtherCAT transmission lines)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; border-right: 1px solid #e2e8f0;\"\u003e\u003cstrong\u003eOutput Channels (1 to 4)\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border-right: 1px solid #e2e8f0;\"\u003e4 x M12 female, 5-pin, a-coded\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003ePin 1 \u0026amp; Pin 2: Relay Contact; Pin 5: Functional Earth (FE)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; border-right: 1px solid #e2e8f0;\"\u003e\u003cstrong\u003eControl Voltage Feed\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border-right: 1px solid #e2e8f0;\"\u003e1 x M8 male, 4-pin\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eFeed: Us (24 V DC system\/sensor power), Up (peripheral\/load power)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; border-right: 1px solid #e2e8f0;\"\u003e\u003cstrong\u003eDownstream Power Link\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px; border-right: 1px solid #e2e8f0;\"\u003e1 x M8 female, 4-pin\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eDaisy-chain distribution of Us and Up voltages to next EtherCAT Box\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\n\u003ch4\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe \u003cstrong\u003eER2624-0002\u003c\/strong\u003e features a zinc die-cast housing designed to offer superior mechanical resistance and optimal shielding compared to its plastic-clad equivalent, the \u003cstrong\u003eEP2624-0002\u003c\/strong\u003e. Both models share identical electronic components and pin assignments, allowing direct drop-in replacement within the TwinCAT System Manager software environment without requiring changes to the existing XML device description files.\u003c\/p\u003e\n\n\u003ch4\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen switching inductive loads (such as DC contactors, solenoid valves, or brake coils), users must integrate external protective circuits (e.g., recovery diodes for DC loads or RC snubbers for AC loads) directly parallel to the load. Failing to suppress counter-electromotive force (back-EMF) transient spikes will cause contact arcing, drastically reducing the electrical service life of the internal miniature relays below the rated 200,000 cycles.\u003c\/p\u003e\n\n\u003ch4\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eEnsure that both the Us (system and sensor power) and Up (peripheral voltage) lines are correctly stabilized. Even though the relays are potential-free, the internal logic requires a continuous 120 mA draw from the Us bus. For systems running long daisy-chained power lines, check for voltage drops; any dip below 20.4 V DC (24 V DC -15%) will trigger communication disruptions and cause erratic relay coil actuation.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem; color: #9b2c2c;\"\u003e\n  \u003cstrong\u003eCRITICAL WARNING:\u003c\/strong\u003e De-energize all primary, peripheral, and load power supplies prior to physical installation, connector insertion, or configuration changes. Contact with high-voltage lines can cause severe electrical shock, equipment damage, or system-wide communication failure.\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; margin-right: 12px; flex-shrink: 0; font-weight: bold;\"\u003e1\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003ePosition the module on a flat, grounded mounting plate or machine frame using the integrated mounting flanges. Secure with two M4 screws tightened to the specified torque limit.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; margin-right: 12px; flex-shrink: 0; font-weight: bold;\"\u003e2\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eEnsure direct metallic contact between the mounting plate and the module body to establish proper Functional Earth (FE) grounding paths.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; margin-right: 12px; flex-shrink: 0; font-weight: bold;\"\u003e3\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eConnect the incoming EtherCAT bus cable to the top-side M8 input socket, and route the output line to the subsequent box if using a daisy-chain topology. Tighten the collar to ensure IP67 sealing.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; margin-right: 12px; flex-shrink: 0; font-weight: bold;\"\u003e4\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003ePlug the M12 actuator cables into the appropriate output ports (Channels 1 through 4), ensuring proper alignment of the a-coded keyway.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; margin-right: 12px; flex-shrink: 0; font-weight: bold;\"\u003e5\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eVerify that all unused M8 and M12 ports are sealed with approved protective caps to preserve IP67 fluid ingress protection ratings.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106496045419,"sku":"ER2624-0002","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/er2624-0002-40j03lumcpd.png?v=1776244796","url":"https:\/\/www.plcprotech.com\/de\/products\/beckhoff-er2624-0002-ethercat-box-4-channel-relay-output-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}