HD Bus Terminals, 16-channel digital input 24 V DC KL1809, KL1819
Signal LEDs
1…8
Signal LEDs
9…16
Power contact
+24 V
Power contact 0 V
Input 1 
Input 2 
Input 3 
Input 4 
Input 5 
Input 6 
Input 7 
Input 8 
Input 9
Input 10
Input 11
Input 12
Input 13
Input 14
Input 15
Input 16
Top view 
Contact assembly 

KL1809, KL1819 | HD Bus Terminals, 16-channel digital input 24 V DC

The KL1809 and KL1819 digital input terminals acquire the binary control signals from the process level and transmit them, in an electrically isolated form, to the higher-level automation device. The Bus Terminals each contain 16 channels, whose signal states are displayed by LEDs. The terminals are particularly suitable for space-saving use in control cabinets. By using the single-conductor connection technique, a multi-channel sensor can be connected in the smallest space with a minimum amount of wiring. The power contacts are looped through.

For the KL1809 and KL1819 Bus Terminals, the reference ground for all inputs is the 0 V power contact. The versions have input filters with different speeds. The conductors can be connected without tools in the case of solid wires using a direct plug-in technique.

The HD Bus Terminals (High Density) with increased packing density feature 16 connection points in the housing of a 12 mm terminal block.

Technical data KL1809 KL1819
Connection technology 1-wire
Specification EN 61131-2, type 1/3
Number of inputs 16
Nominal voltage 24 V DC (-15 %/+20 %)
“0“ signal voltage -3…+5 V (EN 61131-2, type 1/3)
“1“ signal voltage 11…30 V (EN 61131-2, type 3)
Input filter typ. 3.0 ms typ. 0.2 ms
Input current typ. 3 mA (EN 61131-2, type 3)
Current consumpt. K-bus typ. 20 mA
Current consumption power contacts typ. 4 mA + load
Electrical isolation 500 V (K-bus/field potential)
Bit width in the process image 16 inputs
Configuration no address or configuration setting
Conductor types solid wire, stranded wire and ferrule
Conductor connection solid wire conductors: direct plug-in technique; stranded wire conductors and ferrules: spring actuation by screwdriver
Rated cross-section solid wire: 0.08…1.5 mm²; stranded wire: 0.25…1.5 mm²; ferrule: 0.14…0.75 mm²
Weight approx. 60 g
Operating/storage temperature 0…+55 °C/-25…+85 °C
Relative humidity 95 %, no condensation
Vibration/shock resistance conforms to EN 60068-2-6/EN 60068-2-27/29
EMC immunity/emission conforms to EN 61000-6-2/EN 61000-6-4
Protect. class/installation pos. IP 20/variable (see documentation)
Approvals CE, UL, Ex