{"product_id":"bk3120","title":"Beckhoff BK3120 | Beckhoff Bus Terminals","description":"\u003ch2\u003eBK3120 | PROFIBUS Economy plus Bus Coupler\u003c\/h2\u003e \u003cp\u003eThe Economy plus version extends the existing PROFIBUS Bus Coupler series BK3xx0. The K-bus extension technology allows the connection of up to 255 spatially...\u003c\/p\u003e \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e \u003cp\u003eBK3120 Number of Bus Terminals 64 (255 with K-bus extension) Max. number of bytes fieldbus 128 byte input and 128 byte output Transmission rate automatic detection up to 12 Mbaud Bus interface 1 x D-sub 9-pin socket with shielding Transmission medium shielded copper cable, 2 x 0.25 mm² Power supply 24 V DC (-15%\/+20%) Input current 70 mA + (total K-bus current)\/4, 500 mA max. Current supply K-bus 1750 mA Power contacts max. 24 V DC\/max. 10 A Electrical isolation 500 V (power contact\/supply voltage\/fieldbus) Weight approx. 170 g Operating temperature -25…+60°C Storage temperature -40…+85°C Relative humidity 95%, no condensation Vibration\/shock resistance conforms to EN 60068-2-6\/EN 60068-2-27 EMC immunity\/emission conforms to EN 61000-6-2\/EN 61000-6-4 Protect. rating\/installation pos. IP20\/variable Approvals\/markings CE, CCC, UL, ATEX, IECEx, DNV, cFMus Ex marking ATEX: II 3G Ex ec IIC T4\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e regular delivery\u003c\/p\u003e","brand":"Beckhoff","offers":[{"title":"New","offer_id":46136706007293,"sku":"BK3120","price":414.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0747\/5665\/3309\/files\/bk3120.jpg?v=1784998760","url":"https:\/\/shly-plc.com\/products\/bk3120","provider":"Lianyou PLC","version":"1.0","type":"link"}