{"product_id":"beckhoff-kl4434-bus-terminal","title":"BECKHOFF KL4434 Bus Terminal","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe BECKHOFF KL4434 is a 4-channel analog output Bus Terminal designed to generate signals in the range of -10 V to +10 V. Intended for integration within K-bus terminal systems, this module acts as an interface between the controller level and the physical actuators of the plant. The terminal transforms digital 16-bit values from the automation device into analog voltage signals with a resolution of 12 bits, utilizing single-ended common-ground technology.\u003c\/p\u003e\n\u003cp\u003eHoused in a compact 12 mm terminal block, the BECKHOFF KL4434 incorporates four output channels, with all channels sharing a common ground potential. This high density configuration reduces space requirements on the DIN rail while providing reliable multi-channel signal processing. Galvanic isolation is maintained between the internal K-bus and the field-side signal voltage up to 500 V, protecting control electronics from field disturbances.\u003c\/p\u003e\n\u003cp\u003eThis Bus Terminal features status LEDs for diagnostic indication and requires no mechanical address configuration or complex parameterization. The system maps the analog output data directly into the controller's process image, ensuring straightforward installation and direct startup behavior in standard modular control architectures.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFour analog output channels processing bipolar voltage signals from -10 V to +10 V.\u003c\/li\u003e\n  \u003cli\u003e12-bit resolution for precise conversion of digital values to analog control signals.\u003c\/li\u003e\n  \u003cli\u003eSingle-ended output technology with shared ground potential across all four channels.\u003c\/li\u003e\n  \u003cli\u003eShort-circuit-proof outputs capable of driving resistive loads greater than 5 kOhm.\u003c\/li\u003e\n  \u003cli\u003eIntegrated galvanic electrical isolation of 500 V between the internal K-bus and the field-side signal circuits.\u003c\/li\u003e\n  \u003cli\u003eCompact 12 mm housing with direct side-by-side mounting via double slot-and-key connection.\u003c\/li\u003e\n  \u003cli\u003eClear LED status indicators for diagnostic monitoring.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSpeed regulation of frequency converters and variable speed drives.\u003c\/li\u003e\n  \u003cli\u003eControl of proportional valves, actuators, and hydraulic positioning devices.\u003c\/li\u003e\n  \u003cli\u003eCommand transmission to signal conditioners, active filters, and analog displays.\u003c\/li\u003e\n  \u003cli\u003eIntegration into multi-channel testing and calibration fixtures requiring bipolar reference voltages.\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\u003eParameter\u003c\/td\u003e\n      \u003ctd\u003eSpecification\u003c\/td\u003e\n    \u003c\/tr\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\u003eKL4434\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eProduct Type\u003c\/td\u003e\n      \u003ctd\u003eBus Terminal (K-bus)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eHousing Design\u003c\/td\u003e\n      \u003ctd\u003eCompact KL-12-8pin housing with signal LEDs\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMaterial\u003c\/td\u003e\n      \u003ctd\u003ePolycarbonate\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\u003eParameter\u003c\/td\u003e\n      \u003ctd\u003eSpecification\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\u003eSignal Voltage Range\u003c\/td\u003e\n      \u003ctd\u003e-10 V to +10 V\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOutput Technology\u003c\/td\u003e\n      \u003ctd\u003eSingle-ended\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\u003eLess than 0.1% (relative to full scale)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMinimum Load\u003c\/td\u003e\n      \u003ctd\u003eGreater than 5 kOhm (short-circuit proof)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eConversion Time\u003c\/td\u003e\n      \u003ctd\u003eApprox. 4 ms\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\u003eParameter\u003c\/td\u003e\n      \u003ctd\u003eSpecification\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCurrent Consumption K-bus\u003c\/td\u003e\n      \u003ctd\u003eTyp. 20 mA\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCurrent Consumption Power Contacts\u003c\/td\u003e\n      \u003ctd\u003eLoad current only\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eElectrical Isolation\u003c\/td\u003e\n      \u003ctd\u003e500 V (K-bus \/ signal voltage)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003ePower Contacts Max. Current Load\u003c\/td\u003e\n      \u003ctd\u003e10 A\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eMechanical\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eParameter\u003c\/td\u003e\n      \u003ctd\u003eSpecification\u003c\/td\u003e\n    \u003c\/tr\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. 75 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 locking mechanism\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eWiring Technology\u003c\/td\u003e\n      \u003ctd\u003eSpring actuation by screwdriver\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...14)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eFerrule Conductor Cross-Section\u003c\/td\u003e\n      \u003ctd\u003e0.14 to 1.5 mm² (AWG 26...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 Approvals\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eParameter\u003c\/td\u003e\n      \u003ctd\u003eSpecification\u003c\/td\u003e\n    \u003c\/tr\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\u003eVibration and 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\u003eProtection Class\u003c\/td\u003e\n      \u003ctd\u003eIP 20\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eInstallation Position\u003c\/td\u003e\n      \u003ctd\u003eVariable\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eApprovals and Markings\u003c\/td\u003e\n      \u003ctd\u003eCE, UL, ATEX, DNV GL\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\u003eConnections \/ Interfaces\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eTerminal Point\u003c\/td\u003e\n      \u003ctd\u003eFunction\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e1\u003c\/td\u003e\n      \u003ctd\u003eAnalog Output 1\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e2\u003c\/td\u003e\n      \u003ctd\u003eAnalog Output 2\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e3\u003c\/td\u003e\n      \u003ctd\u003eAnalog Output 3\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e4\u003c\/td\u003e\n      \u003ctd\u003eAnalog Output 4\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e5\u003c\/td\u003e\n      \u003ctd\u003e0 V (Reference potential for Analog Output 1)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e6\u003c\/td\u003e\n      \u003ctd\u003e0 V (Reference potential for Analog Output 2)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e7\u003c\/td\u003e\n      \u003ctd\u003e0 V (Reference potential for Analog Output 3)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e8\u003c\/td\u003e\n      \u003ctd\u003e0 V (Reference potential for Analog Output 4)\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 automation system and field power supply are de-energized before mounting or removing any Bus Terminal.\u003c\/li\u003e\n  \u003cli\u003eInspect the Bus Terminal physical housing for any visible damage prior to mechanical installation.\u003c\/li\u003e\n  \u003cli\u003eMount the KL4434 onto a standard 35 mm DIN rail (conforming to EN 60715) by snapping it into place. Ensure the side-by-side slot and key connection fully engages with neighboring terminals.\u003c\/li\u003e\n  \u003cli\u003eVerify that the terminal locking mechanism is properly engaged on the DIN rail to prevent sliding.\u003c\/li\u003e\n  \u003cli\u003eStrip field conductors to a length of 8 to 9 mm. Insert a flat-blade screwdriver into the spring release slot, insert the wire into the connection terminal point, and release the tension to secure the wire.\u003c\/li\u003e\n  \u003cli\u003eConnect the external analog loads to the designated terminal points (1 to 4 for outputs, 5 to 8 for reference ground). Avoid routing analog signal wiring parallel to high-voltage power cables to minimize electromagnetic interference.\u003c\/li\u003e\n  \u003cli\u003eConfigure the controller process image using TwinCAT or another compatible engineering environment before applying system control power.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eReplacement Recommendations\u003c\/h3\u003e\n\u003cp\u003eWhen replacing a BECKHOFF KL4434 Bus Terminal, document all signal and reference terminal wire assignments before disconnecting. Ensure that the bus coupler or PLC rack power supply is switched off during the replacement process. Since the module does not utilize physical address switches, the replacement unit can be fitted directly; configure the controller to verify that the replacement terminal matches the expected hardware profile before restarting the system.\u003c\/p\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106516623723,"sku":"KL4434","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/kl4434-f1ua4qgd1ko.png?v=1776245172","url":"https:\/\/www.plcprotech.com\/products\/beckhoff-kl4434-bus-terminal","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}