| Connection technology | 4-wire | 
| Specification | EN 61131-2, type 1 | 
| Number of inputs | 2 | 
| Nominal voltage | 24 V DC (-15 %/+20 %) | 
| “0” signal voltage | -3…+5 V | 
| “1” signal voltage | 15…30 V | 
| Input filter | typ. 0.2 ms | 
| Input current | typ. 5 mA | 
| Current consumption K-bus | typ. 3 mA | 
| Electrical isolation | 500 V (K-bus/field potential) | 
| Bit width in the process image | 2 inputs | 
| Configuration | no address or configuration setting | 
| Weight | approx. 50 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 | 
| Pluggable wiring | for all KSxxxx Bus Terminals | 
| Approvals/markings | CE, UL, ATEX, IECEx, DNV GL | 
| Ex marking | ATEX: II 3 G Ex ec IIC T4 Gc
 IECEx:
 Ex ec IIC T4 Gc
 |