2-channel digital output terminal 24 V DC with diagnostics KL2212
Signal LED 1
Error LED 1
Signal LED 2
Error LED 2
Power contact
+24 V
Power contact 0 V
Power contact PE
Output 1
Output 2
+24 V
0 V
Top view 
Contact assembly 
extended shock and vibration range 25g

KL2212 | 2-channel digital output terminal 24 V DC with diagnostics

The KL2212 digital output terminal connects the binary control signals from the automation unit on to the actuators at the process level with electrical isolation. The load current output of the KL2212 version is protected against overload and short circuit. A short circuit or an open lead is detected, and the terminal status is relayed to the controller via the K-bus. The Bus Terminals each contain two channels that indicate their signal state and errors by means of light emitting diodes.

Technical data KL2212 | KS2212
Connection technology 4-wire
Number of outputs 2
Nominal voltage 24 V DC (-15 %/+20 %)
Load type ohmic, inductive, lamp load
Max. output current 0.5 A (short-circuit proof) per channel
Short-circuit current < 2 A
Breaking energy < 150 mJ/channel
Reverse voltage protection
Electrical isolation 500 V (K-bus/field potential)
Current consumption power contacts typ. 15 mA + load
Current consumption K-bus typ. 15 mA
Bit width in the process image 4 inputs/4 outputs (2 outputs with no significance)
Meaning of the diagnostic bits (2 bits per channel) 00 – no error
10 – short-circuit to GND
01 – short-circuit to VCC
11 – undervoltage
Configuration no address or configuration setting
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
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
Ex marking II 3 G Ex nA IIC T4 Gc