{"product_id":"beckhoff-ks3404-bus-terminal","title":"BECKHOFF KS3404 Bus Terminal","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eBECKHOFF KS3404\u003c\/strong\u003e is a 4-channel analog input Bus Terminal designed to process signals in the -10 V to +10 V range with high accuracy. Operating within the Beckhoff K-bus system architecture, this terminal converts analog physical values from the field level into digital process data for the higher-level controller. It features single-ended input technology and a 12-bit resolution, ensuring reliable signal acquisition for standard industrial automation tasks.\u003c\/p\u003e\n\u003cp\u003eA key distinguishing feature of the \u003cstrong\u003eBECKHOFF KS3404\u003c\/strong\u003e is its pluggable wiring level. Unlike standard KL-series terminals, the KS-series design allows the complete wiring harness to be plugged or unplugged as a single unit. This design minimizes downtime during maintenance, simplifies pre-wiring steps, and prevents potential wiring errors during terminal replacement.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e4 single-ended analog inputs designed for -10 V to +10 V signal ranges.\u003c\/li\u003e\n  \u003cli\u003e12-bit resolution (11-bit resolution when configured for the 0 to 10 V range).\u003c\/li\u003e\n  \u003cli\u003ePluggable wiring level (KS series housing) for efficient installation and servicing.\u003c\/li\u003e\n  \u003cli\u003e500 V electrical isolation between the K-bus and the signal level.\u003c\/li\u003e\n  \u003cli\u003eNo hardware address or configuration switches required, enabling automatic configuration via the bus coupler.\u003c\/li\u003e\n  \u003cli\u003eCompact 12 mm housing width to optimize control cabinet space.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAnalog voltage monitoring in machine control and industrial process environments.\u003c\/li\u003e\n  \u003cli\u003eIntegration of analog sensors and transducers with standard voltage outputs into K-bus I\/O systems.\u003c\/li\u003e\n  \u003cli\u003eControl cabinet builds requiring pluggable terminal connections for rapid deployment or modular machine designs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ch4\u003eGeneral\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eBECKHOFF\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eKS3404\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eBus Terminal (Analog Input)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eDesign Form\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eTerminal housing with pluggable wiring level\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eSignal and I\/O\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eNumber of Inputs\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e4\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eSignal Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e-10 V to +10 V\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eInput Technology\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eSingle-ended\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e12 bit (11 bit for 0 to 10 V range)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eInternal Resistance\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e\u0026gt; 130 kOhm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMeasuring Error\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e\u0026lt; +-0.3% (relative to full scale value)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eConversion Time\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e~ 2 ms\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eBit Width in Process Image\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eInput: 4 x 16-bit data (4 x 8-bit control\/status optional)\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eElectrical\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eVia the K-bus\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCurrent Consumption K-bus\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eTypical 100 mA\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCurrent Consumption Power Contacts\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eNone (not used)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCurrent Load Power Contacts (Imax)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e10 A\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eElectrical Isolation\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e500 V (K-bus to signal voltage)\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eConnection\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eWiring Connection\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eSpring actuation by screwdriver\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003ePluggable Wiring Level\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eYes\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eConductor Cross-section (Solid)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e0.08 to 1.5 mm² (AWG 28 to 16)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eConductor Cross-section (Stranded)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e0.08 to 1.5 mm² (AWG 28 to 16)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eConductor Cross-section (Flexible)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e0.14 to 1.5 mm² (AWG 26 to 16)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eStripping Length\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e9 to 10 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eMechanical \u0026amp; Environmental\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eDimensions (W x H x D)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e12 mm x 100 mm x 68 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e0.075 kg\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eHousing Material\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003ePolycarbonate\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e35 mm DIN rail (EN 60715) with lock\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e-25 to +60 degC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e-40 to +85 degC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eRelative Humidity\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e95%, non-condensing\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eProtection Class\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eIP20\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eVibration\/Shock Resistance\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eConforms to EN 60068-2-6\/EN 60068-2-27\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eEMC Immunity\/Emission\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eConforms to EN 61000-6-2\/EN 61000-6-4\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eCompliance and Certifications\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eApprovals and Markings\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eCE, UL, ATEX, DNV GL\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eEx Marking\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eII 3 G Ex nA IIC T4 Gc\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Off:\u003c\/strong\u003e Disconnect and lock out all power sources feeding the Bus Terminal system and field devices before installation or removal.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Snap the terminal onto a standard 35 mm DIN rail (conforming to EN 60715). Ensure the double slot-and-key connection is securely aligned with adjacent terminals.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlugging Wiring Level:\u003c\/strong\u003e Insert the wired connector block into the terminal housing until it clicks into place.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e Connect the signal wires according to standard single-ended voltage measurement layouts using a screwdriver to actuate the spring-clamp terminals. Strip wire insulation back 9 to 10 mm.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem Verification:\u003c\/strong\u003e Ensure correct installation of shield connections where necessary to protect sensitive analog signals from external electromagnetic interference.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eReplacement Recommendations\u003c\/h3\u003e\n\u003cp\u003eWhen replacing an existing \u003cstrong\u003eBECKHOFF KS3404\u003c\/strong\u003e, the pluggable wiring level allows maintenance personnel to swap the physical electronics block without disconnecting individual wires from the spring clamps. Ensure that the bus segment is fully de-energized before removing the connector block or pulling the terminal off the DIN rail. Verify that the successor or replacement model matches the configuration requirements in the TwinCAT system manager.\u003c\/p\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106520097131,"sku":"KS3404","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/ks3404-f4s3madqwrw.png?v=1776245305","url":"https:\/\/www.plcprotech.com\/products\/beckhoff-ks3404-bus-terminal","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}