8-channel analog input terminal 0…20 mA KL3448
Run LED 8
Run LED 6
Run LED 4
Run LED 2
Run LED 7 
Run LED 5 
Run LED 3 
Run LED 1 
Power contact
+24 V
Power contact 0 V
Input 1
Input 3
Input 5
Input 7
Input 2
Input 4
Input 6
Input 8
Top view 
Contact assembly 
extended temperature range
extended shock and vibration range 25g

KL3448 | 8-channel analog input terminal 0…20 mA

The KL3444 analog input terminal processes signals in the range between 0 and 20 mA. The current is digitised to a resolution of 12 bits and is transmitted, in an electrically isolated form, to the higher-level automation device. The KL3448 combines eight channels in one housing and is particularly suitable for space-saving installation in control cabinets. The use of single conductor connection technology enables the connection of multi-channel sensor technology with minimum space requirements. The reference ground for all inputs is the 0 V power contact. The power contacts are connected through. Overload is detected. The terminal status is relayed to the controller via the K-bus. The LEDs indicate the data exchange with the Bus Coupler as well as overload or wire breakage.

Technical data KL3448 | KS3448
Number of inputs 8
Power supply via the K-bus
Signal current 0…20 mA
Technology single-ended
Internal resistance < 85 Ω
Common-mode voltage UCM
Conversion time ~ 4 ms
Resolution 12 bit
Measuring error < ±0.3 % (relative to full scale value)
Surge voltage resistance 30 V DC
Electrical isolation 500 V (K-bus/signal voltage)
Current consumption power contacts
Current consumption K-bus typ. 105 mA
Bit width in the process image input: 8 x 16 bit data (8 x 8 bit control/status optional)
Configuration no address or configuration setting
Special features high packing density
Weight approx. 55 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. class/installation pos. IP 20/variable
Pluggable wiring for all KSxxxx Bus Terminals
Approvals/markings CE, UL, ATEX, GL
Ex-Marking II 3 G Ex nA IIC T4 Gc