{"product_id":"kl9540-beckhoff-surge-filter-system-terminal-24-vdc","title":"KL9540 BECKHOFF Bornier système de filtre contre les surtensions 24 VCC","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eKL9540 (KL9540)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a specialized system terminal designed to provide advanced protection for the field supply within a Beckhoff Bus Terminal block. Functioning as a high-efficiency surge filter, this module is engineered to shield sensitive electronic components from overvoltage transients and high-frequency interference present on the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e24 VDC\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efield power lines. In heavy industrial sectors such as oil and gas, marine engineering, and power generation, electrical noise and surges can lead to catastrophic hardware failure or signal corruption. The KL9540 acts as a critical line of defense, stabilizing the field potential and ensuring the reliable operation of downstream I\/O modules, thereby minimizing unplanned downtime and extending equipment lifespan.\u003c\/p\u003e\n\u003ch3\u003eTechnical Configuration (Deep Dive)\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eKL9540\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as a power conditioning node between the power supply and the field contacts. It supports a robust rated current of up to\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e10 A\u003c\/strong\u003e, making it capable of handling significant load demands across a large terminal segment. Unlike standard feed-in terminals, the KL9540 integrates specialized filtration circuitry and a dedicated\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ePE (Protective Earth)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003econnection to shunt surge energy safely to the ground.\u003c\/p\u003e\n\u003cp\u003eThe module is housed in a compact\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e12 mm\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003epolycarbonate shell and features the standard Beckhoff double-slot and key connection system for seamless side-by-side mounting. It supports pluggable wiring (KS series compatibility) and utilizes spring-actuated terminals, which provide superior vibration resistance compared to traditional screw terminals—a necessity for the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDNV GL\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eATEX\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecertified environments it is often deployed in.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eAttribute\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Details\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eKL9540\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBECKHOFF\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSurge Filter Field Supply\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24 VDC (-15 % \/ +20 %)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eRated Field Current\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMax 10 A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePE Connection\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYes\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWiring Method\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSpring Actuation (Screwdriver operated)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWire Range (Solid)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.08 to 2.5 mm² (AWG 28-14)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWire Range (Ferrule)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.14 to 1.5 mm² (AWG 26-16)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDimensions (W x H x D)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e12 mm x 100 mm x 68 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-25 to +60 Celsius\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProtection Rating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIP20\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eApprovals\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCE, UL, ATEX (Ex nA IIC T4 Gc), DNV GL\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhere should the KL9540 be placed within a Bus Terminal segment?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor maximum protection, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eKL9540\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eshould be installed upstream of the I\/O modules it is intended to protect. It is typically placed immediately after the bus coupler or a power feed terminal to filter the field supply before it reaches sensitive digital or analog modules.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the KL9540 protect the K-bus communication?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The KL9540 is specifically designed to filter the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003efield supply\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(power contacts). It does not filter the internal K-bus logic communication. Protection for logic power is usually handled by the bus coupler's internal filtering or separate logic-side filters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this module be used in hazardous locations?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The module carries\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eATEX\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emarking (\u003cstrong\u003eII 3 G Ex nA IIC T4 Gc\u003c\/strong\u003e), permitting its use in Zone 2 hazardous areas where explosive atmospheres are unlikely to occur but must be accounted for.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eEngineering \u0026amp; Installation Guide\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePE Termination:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe Protective Earth (PE) connection is vital for the surge filter's performance. Ensure a low-impedance connection to the DIN rail. The 35 mm DIN rail must be properly grounded to the cabinet's main earth bar to allow the filter to dissipate transients effectively.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStripping and Termination:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUse a standard flat-head screwdriver to actuate the spring terminals. Ensure a stripping length of\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e8 to 9 mm\u003c\/strong\u003e. For flexible conductors, using ferrules (f) is highly recommended to prevent fraying and ensure a gas-tight connection under high-vibration conditions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCurrent Limitations:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhile the module is rated for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e10 A\u003c\/strong\u003e, always calculate the total simultaneous load of the downstream modules. If the total current exceeds 10 A, an additional power feed terminal must be integrated into the bus assembly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eKL9540\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003estands out due to its multi-industry certifications, particularly\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDNV GL\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor maritime applications and\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eATEX\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor explosive environments. Its polycarbonate housing is not only durable but also fire-retardant. The inclusion of signal LEDs provides immediate visual diagnostic feedback on the status of the field supply. By conforming to\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eEN 61000-6-2\/4\u003c\/strong\u003e, the module guarantees that the automation system remains compliant with strict EMC directives, making it a \"peace-of-mind\" component for complex B2B industrial projects where electrical stability is non-negotiable.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106703794539,"sku":"KL9540","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/kl9540-v4deeycf1av.png?v=1776245231","url":"https:\/\/www.plcprotech.com\/fr\/products\/kl9540-beckhoff-surge-filter-system-terminal-24-vdc","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}