{"product_id":"ks2634-beckhoff-bus-terminal-4-channel-relay-output-250-vac-30-vdc","title":"KS2634 BECKHOFF Bornier Bus Sortie relais 4 canaux 250 VAC \/ 30 VDC","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eKS2634 (KS2634)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-performance 4-channel relay output terminal designed for the modular Beckhoff Bus Terminal system. Featuring four independent make contacts (normally open), this module acts as a robust interface between the internal logic of the K-bus and high-power field devices. With a high switching capacity of up to 4 A per channel and support for voltages up to 250 VAC, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eKS2634\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis optimized for controlling AC\/DC loads such as small motors, contactors, and solenoid valves. The \"KS\" designation signifies the inclusion of a pluggable wiring level, allowing for rapid terminal replacement without disconnecting individual field wires, which significantly reduces maintenance time and prevents wiring errors in critical automation environments like material handling and building management.\u003c\/p\u003e\n\u003ch3\u003eTechnical Configuration\u003c\/h3\u003e\n\u003cp\u003eThe hardware architecture of the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eKS2634\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecenters on mechanical relay technology, providing true potential-free switching and physical air-gap isolation. It is engineered for versatility, supporting both ohmic and inductive load types with rated currents of 4 A and 2 A respectively. The terminal features a high mechanical service life of 20 million cycles and utilizes an internal K-bus current of 120 mA for logic-side operations. A key technical advantage is its ultra-low minimum permitted load (0.1 mA at 0.1 VDC), allowing it to switch high-impedance signals or low-power electronic inputs with extreme reliability. The module is housed in a slim 12 mm form factor and provides 500 V electrical isolation between the logic and field levels.\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\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eKS2634\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBECKHOFF\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOrigin\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGermany\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOutput Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4 x Make Contacts (Relay)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNominal Voltage\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e250 VAC \/ 30 VDC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMax. Output Current\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4 A per channel\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eLoad Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOhmic and Inductive\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInductive Switching Current\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2 A AC\/DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMin. Permitted Load\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.1 mA at 0.1 VDC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCurrent Consumption (K-bus)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003etyp. 120 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eConnection Technology\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePluggable wiring level\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMechanical Life\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2 x 10^7 cycles\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDimensions (W x H x D)\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\u003eOperating Temperature\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0 to +55 Celsius\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProtection Rating\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\u003eShipping Weight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.0 kg\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\u003eWhat is the benefit of the KS-series pluggable wiring over the standard EL\/KL series?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eKS2634\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efeatures a detachable wiring block. During service or system upgrades, the entire wiring plug can be removed from the terminal housing without loosening the individual spring-clamp connections. This \"Permanent Wiring\" concept ensures that the field installation remains intact, dramatically accelerating the replacement process and ensuring the machine returns to operation faster.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow should I protect the relay contacts when switching inductive loads?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhile the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eKS2634\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis rated for 2 A inductive loads, mechanical relays are susceptible to contact erosion caused by back-EMF. For DC inductive loads (e.g., solenoids), we strongly recommend installing a flyback diode. For AC inductive loads, an RC snubber circuit or varistor should be placed across the load to suppress arcing and maximize the electrical life of the relay.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this module be used to switch very small signals?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. Unlike many high-power relays that require a minimum \"wetting current\" to break through surface oxidation on the contacts, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eKS2634\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis rated for loads as low as 0.1 mA at 0.1 VDC. This makes it suitable for interfacing with high-impedance inputs of other electronic controllers or sensors.\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\u003eWiring Precision:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe terminal utilizes spring-actuated connections. For optimal contact, use wires with a cross-section between 0.08 and 1.5 mm squared. Ensure the stripping length is strictly between 9 and 10 mm. Avoid over-tightening or using excessive force with the screwdriver to prevent damage to the pluggable terminal block.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMounting and Stability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSecure the module on a standard 35 mm DIN rail (EN 60715). Utilize the integrated double slot and key connection system to ensure a rigid mechanical bond with adjacent terminals. This is critical in high-vibration environments (conforming to EN 60068-2-6) to maintain electrical continuity across the K-bus power contacts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTotal Current Management:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe maximum current load for the power contacts is 10 A. If the sum of the currents across the four channels (and any downstream terminals) exceeds this value, a new power feed terminal (e.g., KL9010 or similar) must be inserted to prevent overheating of the internal power bus.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106653921643,"sku":"KS2634","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/ks2634-afjyen1t23g.png?v=1776245273","url":"https:\/\/www.plcprotech.com\/fr\/products\/ks2634-beckhoff-bus-terminal-4-channel-relay-output-250-vac-30-vdc","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}