{"product_id":"beckhoff-kl4424-k-bus-4-channel-analog-output-terminal","title":"Beckhoff KL4424 K-Bus 4-Channel Analog Output Terminal","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eGenerating precise analog control signals within the Beckhoff I\/O framework, the \u003cstrong\u003eBeckhoff KL4424\u003c\/strong\u003e operates as a high-density, four-channel current output module. Engineered to process signals in the standard \u003cstrong\u003e4 to 20 mA\u003c\/strong\u003e range, this terminal delivers high resolution and galvanic isolation to field-level actuators, control valves, and current-loop indicators. Its robust design is optimized for environments demanding dependable noise immunity and stable performance under fluctuating thermal conditions.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFour Single-Ended Channels:\u003c\/strong\u003e Compact integration of four analog outputs within a single 12 mm Bus Terminal housing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e12-Bit Resolution:\u003c\/strong\u003e High-precision digital-to-analog conversion providing precise process control execution.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShort-Circuit Proof:\u003c\/strong\u003e Outputs are protected against wiring faults and load fluctuations up to 350 Ohms.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlexible Power Options:\u003c\/strong\u003e Operates natively via 24 V DC power contacts, with support for 15 V DC via the KL9515 power supply terminal.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGalvanic Isolation:\u003c\/strong\u003e Provides 500 V isolation between the internal K-bus electronics and the signal channels.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComprehensive Certifications:\u003c\/strong\u003e Approved for hazardous areas with ATEX, IECEx, and cFMus Class I Division 2 ratings.\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: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eModulating valve positioners and pneumatic actuators in oil and gas refineries.\u003c\/li\u003e\n  \u003cli\u003eVariable frequency drive speed reference control over standardized current loops.\u003c\/li\u003e\n  \u003cli\u003eProcess instrumentation control in chemical processing plants.\u003c\/li\u003e\n  \u003cli\u003eWater and wastewater flow rate configuration systems.\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; font-size: 14px;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2d3748; text-align: left;\"\u003e\n        \u003cth style=\"padding: 8px; font-weight: bold;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 8px; font-weight: bold;\"\u003eValue \/ Specification\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: 8px; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eBeckhoff Automation\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eModel Series\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eKL-Bus Terminal System (KL4xxx)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eNumber of Outputs\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e4 single-ended\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eSignal Current Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e4...20 mA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eResolution\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e12-bit\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eOutput Load Limitation\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e\u0026lt; 350 Ohm (short-circuit proof)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eOutput Error\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e\u0026lt; ±0.1% (relative to end-scale value)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eConversion Time\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eapprox. 4 ms\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eSupply Voltage\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e24 V DC via power contacts (or 15 V DC via KL9515)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eCurrent Consumption (K-bus)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003etyp. 20 mA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eCurrent Consumption (Power Contacts)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003etyp. 60 mA + load current\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eElectrical Isolation\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e500 V (K-bus \/ signal voltage)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eBit Width in Process Image\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e4 x 16-bit output data (optional 4 x 8-bit control\/status)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eOperating Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e0 degC to +55 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eStorage Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e-25 degC to +85 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eRelative Humidity\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e95%, non-condensing\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eVibration\/Shock Resistance\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\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: 8px; font-weight: bold;\"\u003eEMC Immunity\/Emission\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\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: 8px; font-weight: bold;\"\u003eProtection Rating\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eIP20 (variable installation position)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eNet Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eapprox. 75 g\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e0.15 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003ePackage Dimensions (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e12.0 x 7.0 x 3.0 cm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eHazardous Location Approvals\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eATEX II 3 G Ex nA IIC T4 Gc \/ IECEx Ex ec IIC T4 Gc \/ cFMus Cl. I Div 2\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; font-size: 14px;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2d3748; text-align: left;\"\u003e\n        \u003cth style=\"padding: 8px; font-weight: bold;\"\u003eTerminal Point\u003c\/th\u003e\n        \u003cth style=\"padding: 8px; font-weight: bold;\"\u003eSignal Name\u003c\/th\u003e\n        \u003cth style=\"padding: 8px; font-weight: bold;\"\u003eDescription\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: 8px; font-weight: bold;\"\u003e1\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eOut 1\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eAnalog Output 1 (4...20 mA)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003e2\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eOut 2\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eAnalog Output 2 (4...20 mA)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003e3\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eOut 3\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eAnalog Output 3 (4...20 mA)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003e4\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eOut 4\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eAnalog Output 4 (4...20 mA)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003e5\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e0 V\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eCommon Ground Reference (Power Contact)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003e6\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e0 V\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eCommon Ground Reference (Power Contact)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003e7\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e0 V\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eCommon Ground Reference (Power Contact)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003e8\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e0 V\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eCommon Ground Reference (Power Contact)\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eAlternative Models \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe terminal utilizes standard K-bus backplane communication and can be combined seamlessly with other standard bus terminals. For installations requiring pluggable wiring harnesses to minimize field maintenance times, the \u003cstrong\u003eKS4424\u003c\/strong\u003e version serves as the direct hardware equivalent featuring pluggable connector blocks.\u003c\/p\u003e\n\n\u003ch3\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen sizing current loops, ensure that the total loop resistance does not exceed \u003cstrong\u003e350 Ohms\u003c\/strong\u003e. Exceeding this limit will cause the output driver to saturate before reaching the full 20 mA signal level, resulting in non-linear control. In high-density cabinet layouts with elevated ambient operating temperatures, consider powering the terminal at 15 V DC using a KL9515 terminal block to minimize local thermal dissipation within the enclosure.\u003c\/p\u003e\n\n\u003ch3\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eTo protect sensitive low-level analog signals from electromagnetic interference, use shielded twisted-pair (STP) cabling for all output runs. Ground the cable shield only at the entry point of the control cabinet to avoid forming ground loops. Ensure that the 0 V reference terminals (5 through 8) are properly bridged to the common power contact ground path to prevent common-mode voltage offsets on the analog signals.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cp style=\"margin: 0; font-weight: bold; color: #9b2c2c;\"\u003eCRITICAL WARNING:\u003c\/p\u003e\n  \u003cp style=\"margin: 0.5rem 0 0 0; color: #9b2c2c; font-size: 14px;\"\u003eDe-energize all field circuits and system power supplies before mounting or dismounting the terminal. Inserting or removing bus terminals while the backplane or external field power is energized can cause physical damage to the internal K-bus contacts and compromise surrounding modules.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: center; margin-bottom: 1rem;\"\u003e\n  \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; font-weight: bold; margin-right: 10px; font-size: 14px;\"\u003e1\u003c\/span\u003e\n  \u003cspan style=\"color: #2d3748; font-weight: bold;\"\u003eMounting on DIN Rail\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-left: 34px; margin-top: -0.5rem; margin-bottom: 1rem; color: #4a5568;\"\u003eSnap the module onto a standard 35 mm DIN rail (EN 60715), ensuring that the locking mechanism engages securely with the rail's edges.\u003c\/p\u003e\n\n\u003cdiv style=\"display: flex; align-items: center; margin-bottom: 1rem;\"\u003e\n  \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; font-weight: bold; margin-right: 10px; font-size: 14px;\"\u003e2\u003c\/span\u003e\n  \u003cspan style=\"color: #2d3748; font-weight: bold;\"\u003eSide-by-Side Integration\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-left: 34px; margin-top: -0.5rem; margin-bottom: 1rem; color: #4a5568;\"\u003eSlide the terminal horizontally along the DIN rail to interconnect the K-bus and power contacts with adjacent terminals. Verify that the side tongue-and-groove joints are fully locked.\u003c\/p\u003e\n\n\u003cdiv style=\"display: flex; align-items: center; margin-bottom: 1rem;\"\u003e\n  \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; font-weight: bold; margin-right: 10px; font-size: 14px;\"\u003e3\u003c\/span\u003e\n  \u003cspan style=\"color: #2d3748; font-weight: bold;\"\u003eField Wiring Termination\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-left: 34px; margin-top: -0.5rem; margin-bottom: 1rem; color: #4a5568;\"\u003eInsert wire connections using a screwdriver to open the spring-loaded tension clamps. Ensure only stripped conductors without frayed copper strands are inserted, then release the spring clamp to lock the connection.\u003c\/p\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106538611051,"sku":"KL4424","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/kl4424-jilicztc4fd.png?v=1776245170","url":"https:\/\/www.plcprotech.com\/ru\/products\/beckhoff-kl4424-k-bus-4-channel-analog-output-terminal","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}