{"product_id":"beckhoff-kl4004-bus-terminal","title":"BECKHOFF KL4004 Bus Terminal","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eBECKHOFF KL4004\u003c\/strong\u003e is a 4-channel analog output Bus Terminal designed to generate high-precision control signals in the range of 0 to 10 V. Operating within the modular Beckhoff Bus Terminal system, this terminal serves as a reliable interface between automation control systems and physical analog actuators such as speed drives, valves, and setpoint adjusters.\u003c\/p\u003e\n\u003cp\u003eSignals are processed and output with a 12-bit resolution, ensuring stable and accurate control. The \u003cstrong\u003eBECKHOFF KL4004\u003c\/strong\u003e features a single-ended circuit design and does not feature power contacts, meaning its internal electronics are powered entirely via the K-bus. It also provides 500 V of electrical isolation between the internal K-bus and the analog signal voltage to protect sensitive control electronics.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFour analog output channels supporting 0 to 10 V signals.\u003c\/li\u003e\n  \u003cli\u003e12-bit resolution for precise analog control loops.\u003c\/li\u003e\n  \u003cli\u003eShort-circuit proof outputs with load resistance handling greater than 5 kOhm.\u003c\/li\u003e\n  \u003cli\u003eInternal galvanic isolation of 500 V between the K-bus and the output channels.\u003c\/li\u003e\n  \u003cli\u003eCompact, space-saving terminal housing with integrated status LEDs.\u003c\/li\u003e\n  \u003cli\u003eNo power contacts, drawing current exclusively from the K-bus.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSpeed control for frequency converters and servo drives.\u003c\/li\u003e\n  \u003cli\u003eAnalog valve position control in fluid power and HVAC systems.\u003c\/li\u003e\n  \u003cli\u003eSetpoint adjustment in testing and calibration stations.\u003c\/li\u003e\n  \u003cli\u003eDistributed industrial control systems using Beckhoff Bus Couplers.\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\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\u003eKL4004\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\u003e4\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eTechnology\u003c\/td\u003e\n      \u003ctd\u003eSingle-ended\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\u003eSignal Voltage\u003c\/td\u003e\n      \u003ctd\u003e0 to 10 V\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\u003eConversion Time\u003c\/td\u003e\n      \u003ctd\u003eapprox. 2 ms\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eLoad Resistance\u003c\/td\u003e\n      \u003ctd\u003e\u0026gt; 5 kOhm (short-circuit proof)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOutput Error\u003c\/td\u003e\n      \u003ctd\u003e\u0026lt; ±0.1% (relative to end value)\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\u003ePower Supply\u003c\/td\u003e\n      \u003ctd\u003eVia K-bus\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eK-bus Current Consumption\u003c\/td\u003e\n      \u003ctd\u003etyp. 85 mA\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003ePower Contacts Current Consumption\u003c\/td\u003e\n      \u003ctd\u003eNone (no power contacts)\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\u003eBit Width in Process Image\u003c\/td\u003e\n      \u003ctd\u003eOutput: 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\u003eMechanical and Connection\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDimensions (W x H x D)\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\u003eWeight\u003c\/td\u003e\n      \u003ctd\u003eapprox. 85 g\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMounting\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\u003eWiring Technology\u003c\/td\u003e\n      \u003ctd\u003eCage Clamp (solid, flexible, or ferrule)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSolid\/Stranded Conductor Cross-Section\u003c\/td\u003e\n      \u003ctd\u003e0.08 to 2.5 mm² (AWG 28 to 14)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eFlexible Conductor Cross-Section\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\u003e8 to 9 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eEnvironmental and Compliance\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOperating Temperature\u003c\/td\u003e\n      \u003ctd\u003e0 to +55 degC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eStorage Temperature\u003c\/td\u003e\n      \u003ctd\u003e-25 to +85 degC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eRelative Humidity\u003c\/td\u003e\n      \u003ctd\u003e95%, non-condensing\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eProtection Rating\u003c\/td\u003e\n      \u003ctd\u003eIP20\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eVibration\/Shock Resistance\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\u003eEMC Immunity\/Emission\u003c\/td\u003e\n      \u003ctd\u003eConforms to EN 61000-6-2 \/ EN 61000-6-4\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eApprovals and Markings\u003c\/td\u003e\n      \u003ctd\u003eCE, UL, ATEX\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eEx Marking\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\u003eEnsure the entire control system and associated power supplies are fully de-energized before beginning installation or removal.\u003c\/li\u003e\n  \u003cli\u003eMount the terminal onto a standard 35 mm DIN rail (EN 60715) by sliding it into place until the locking mechanism clicks securely.\u003c\/li\u003e\n  \u003cli\u003eConnect the terminal side-by-side with other Bus Terminals using the integrated slot-and-key system, ensuring physical and electrical contact with the K-bus.\u003c\/li\u003e\n  \u003cli\u003eStrip the signal wire insulation to a length of 8 to 9 mm.\u003c\/li\u003e\n  \u003cli\u003eInsert a small screwdriver into the operating slot of the cage clamp to open the wire clamp, insert the conductor, and release to secure.\u003c\/li\u003e\n  \u003cli\u003eNote that the terminal has no power contacts; no power is fed through the adjacent terminals. Ensure appropriate field ground or external supply routing for connected analog devices.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106458820971,"sku":"KL4004","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/kl4004-ojjnnqlf1fx.png?v=1776245164","url":"https:\/\/www.plcprotech.com\/products\/beckhoff-kl4004-bus-terminal","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}