About this product BK3120 Number of Bus Terminals 64 (255 with K-bus extension) Max. number of bytes fieldbus 128 byte input and 128 byte output Data transfer rates automatic detection up to 12 Mbaud Bus interface 1 x D-sub 9-pin socket with shielding Data transfer medium shielded copper cable, 2 x 0.25 mm 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/storage temperature -25?+60 C/-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, UL, ATEX, IECEx, DNV GL, cFMus Ex marking ATEX: II 3 G Ex nA IIC T4 Gc IECEx: Ex ec IIC T4 Gc cFMus: Class I, Division 2, Groups A, B, C, D Class I, Zone 2, AEx ec IIC T4 Gc Remarques du vendeur : The condition is very good. Please refer to the picture of the state of the goods. Condition Note: Units were in good working order when removed from service. Money back guarantee, free returns within 30 days. Terms of Sale : PayPal is the only form of payment accepted at this time. PayPal accept Visa, Master card, American Express. International buyers are responsible for any Broker Fees, Duty Fees, Custom Charges and Local Taxes Due to the variety of products sold by us and their broad range of applications, those responsible for the procurement, installation, application and/or use of purchased equipment must satisfy themselves that all components meet performance and safety requirements including but not limited to: all applicable laws, regulations, codes and standards.