{"product_id":"beckhoff-ks4428-bus-terminal","title":"BECKHOFF KS4428 Bus Terminal","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eBECKHOFF KS4428\u003c\/strong\u003e is a high-density, 8-channel analog output Bus Terminal designed for space-sensitive automation architectures. Operating within the standard Beckhoff K-bus system, this terminal generates analog output signals in the 4 to 20 mA range with a 12-bit resolution. It is engineered to interface directly with actuators, current-loop indicators, valves, and other process control devices that require precise current signals.\u003c\/p\u003e\n\n\u003cp\u003eA key distinguishing feature of the \u003cstrong\u003eBECKHOFF KS4428\u003c\/strong\u003e is its pluggable wiring level. Unlike standard KL-series terminals, the KS-series design allows the terminal connector block to be detached from the housing. This enables pre-wiring of the control cabinet and fast, tool-free replacement of the terminal electronics during maintenance, significantly reducing machine downtime.\u003c\/p\u003e\n\n\u003cp\u003eWith eight single-ended channels housed in a compact 12 mm width, this terminal maximizes packing density on the DIN rail. It leverages the internal K-bus for communication with the coupler or controller and utilizes the 24 V DC power contacts for field-side signal generation.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eEight single-ended analog output channels in a slim 12 mm terminal housing.\u003c\/li\u003e\n  \u003cli\u003ePluggable wiring connection level for rapid field installation and simple maintenance.\u003c\/li\u003e\n  \u003cli\u003eStandard 4 to 20 mA current loop output signal configuration.\u003c\/li\u003e\n  \u003cli\u003e12-bit resolution for accurate command signal reproduction.\u003c\/li\u003e\n  \u003cli\u003eCommon ground potential across all 8 output channels.\u003c\/li\u003e\n  \u003cli\u003eEfficient power distribution utilizing K-bus and 24 V DC power contacts.\u003c\/li\u003e\n  \u003cli\u003eCompact DIN rail mounting with positive lock connection mechanism.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eControl of analog current-loop actuators, control valves, and process dampers.\u003c\/li\u003e\n  \u003cli\u003eInterfacing with speed controllers and variable frequency drives (VFDs) requiring current reference inputs.\u003c\/li\u003e\n  \u003cli\u003eIntegration of multi-channel process displays and current-controlled signal indicators.\u003c\/li\u003e\n  \u003cli\u003eCompact machine control panels where high I\/O density and rapid terminal replacement are required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\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\u003eManufacturer\u003c\/td\u003e\n      \u003ctd\u003eBECKHOFF\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eModel\u003c\/td\u003e\n      \u003ctd\u003eKS4428\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eProduct Type\u003c\/td\u003e\n      \u003ctd\u003eBus Terminal (Analog Output)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eNumber of Outputs\u003c\/td\u003e\n      \u003ctd\u003e8\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSignal Current Range\u003c\/td\u003e\n      \u003ctd\u003e4 to 20 mA\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eTechnology Connection\u003c\/td\u003e\n      \u003ctd\u003eSingle-ended (common ground)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eResolution\u003c\/td\u003e\n      \u003ctd\u003e12 bit\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOutput Error\u003c\/td\u003e\n      \u003ctd\u003e\u0026lt; ±0.2% (relative to end value)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eConversion Time\u003c\/td\u003e\n      \u003ctd\u003eApproximately 8 ms\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eLoad Impedance\u003c\/td\u003e\n      \u003ctd\u003e\u0026lt; 150 Ohm (short-circuit proof)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eElectrical Isolation\u003c\/td\u003e\n      \u003ctd\u003e500 V (K-bus to signal voltage)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCurrent Consumption (K-bus)\u003c\/td\u003e\n      \u003ctd\u003eTypically 20 mA\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCurrent Consumption (Power Contacts)\u003c\/td\u003e\n      \u003ctd\u003eTypically 60 mA + load\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eNominal Voltage Supply\u003c\/td\u003e\n      \u003ctd\u003e24 V DC via power contacts\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eProcess Image Bit Width\u003c\/td\u003e\n      \u003ctd\u003eOutput: 8 x 16-bit data (8 x 8-bit control\/status optional)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eWiring Mechanism\u003c\/td\u003e\n      \u003ctd\u003ePluggable tension-clamp wiring level (KS-series)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eConductor Cross-section (Solid)\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\u003eConductor Cross-section (Fine-wire)\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\u003eStripping Length\u003c\/td\u003e\n      \u003ctd\u003e9 to 10 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eHousing Width\u003c\/td\u003e\n      \u003ctd\u003e12 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOperating Temperature\u003c\/td\u003e\n      \u003ctd\u003e0 to +55 Celsius\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eStorage Temperature\u003c\/td\u003e\n      \u003ctd\u003e-25 to +85 Celsius\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eRelative Humidity\u003c\/td\u003e\n      \u003ctd\u003e95%, no condensation\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eProtection Class\u003c\/td\u003e\n      \u003ctd\u003eIP20\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation and Maintenance Guidelines\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDe-energize the System:\u003c\/strong\u003e Ensure the power supply to the K-bus and the 24 V DC power contacts is switched off before mounting, removing, or wiring the terminal.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDIN Rail Mounting:\u003c\/strong\u003e Slide the terminal onto a standard 35 mm DIN rail (conforming to EN 60715) until the lock snaps firmly in place. Ensure solid alignment with adjacent terminals to secure internal K-bus and power contact connections.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWiring Setup:\u003c\/strong\u003e Release the spring mechanism using a small screwdriver, insert the stripped conductor (9 to 10 mm preparation), and release the tool. Confirm the wire is held securely in the pluggable terminal block.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePluggable Housing Operation:\u003c\/strong\u003e For terminal maintenance or replacement, the pre-wired terminal block can be extracted upward, allowing the electronic housing of the terminal to be replaced without removing individual wires.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrounding and Shielding:\u003c\/strong\u003e To minimize electromagnetic noise in sensitive analog signal loops, utilize shielded cabling and ground the shields in accordance with local industrial automation standards.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106528846187,"sku":"KS4428","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/ks4428-cvgeigps24z.png?v=1776245323","url":"https:\/\/www.plcprotech.com\/products\/beckhoff-ks4428-bus-terminal","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}