The KL9400 power supply unit terminal is used to refresh the K-bus. Data is exchanged between the Bus Coupler and Bus Terminal over the K-bus. Each Bus Terminal draws a certain amount of current from the K-bus (see “Current consumption K-bus” in the technical data). This current is fed into the K-bus by the relevant Bus Coupler’s power supply unit. The standard couplers (BKxx00, BCxx00) make 1.75 A available to the K-bus. In configurations with a large number of Bus Terminals it is possible to use the KL9400 in order to supply an extra 2 A to the K-bus.
Technical dataKL9400 | KS9400Input voltage24 V DC (-15 %/+20 %)Output voltage5 V DCOutput current2 A for K-bus supplyDiagnostics–Current consumption K-bus–Power contactsmax. 24 V DC/max. 10 AShort-circuit proofyesElectrical isolation–Residual ripple–Weightapprox. 65 gOperating/storage temperature-25…+60 °C/-40…+85 °CRelative humidity95 %, no condensationVibration/shock resistanceconforms to EN 60068-2-6/EN 60068-2-27EMC immunity/emissionconforms to EN 61000-6-2/EN 61000-6-4Protect. class/installation pos.IP 20/variablePluggable wiringfor all KSxxxx Bus TerminalsApprovals/markingsCE, UL, ATEX, GLEx markingII 3 G Ex nA IIC T4 Gc
