The digital KL2798 Bus Terminal provides eight switches that can be used like a relay contact for AC/DC voltages. The electronic switch is realized through high-performance MOSFET transistors with low switch-on resistance. The switch itself is not short-circuit proof, but due to its high pulse current capability it can cope with current until an external fuse triggers a switch-off.
Wear resistance increases the availability of the application. Resistive and inductive loads can be switched up to a rated voltage of 30 V AC/DC, completely resistive loads also up to a rated voltage of 48 V DC.
High peak voltages and electromagnetic interference pulses are prevented.
Product status:
regular delivery
Product information
| Technical data | KL2798 |
|---|---|
| Connection technology | 2-wire |
| Number of outputs | 8 x make contacts |
| Max. output current | 2 A per channel, ∑ 10 A |
| Breakdown voltage | 80 V |
| Peak current | 5 A (100 ms), < 50 A (10 ms) |
| Short-circuit current | not short-circuit proof, see peak current |
| Reverse polarity protection | – |
| Isolation voltage (channel/channel) | < 200 V |
| Electrical isolation | 500 V (K-bus/field potential) |
| Switching on speed | typ. 1.8 ms, max. 5 ms |
| Switching off speed | typ. 30 ms, max. 50 ms |
| On-resistance | typ. 0.03 Ω |
| Current consumption power contacts | – |
| Current consumption K-bus | 80 mA |
| Bit width in the process image | 8 outputs |
| Special features | substitute for relay contacts, potential-free |
| Operating temperature | 0…55°C |
| Storage temperature | -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. rating/installation pos. | IP20/variable |
| Approvals/markings | CE, UL |
| Housing data | HD housing |
|---|---|
| Design form | HD (High Density) housing with signal LEDs |
| Material | polycarbonate |
| Installation | on 35 mm DIN rail, conforming to EN 60715 with lock |
| Side by side mounting by means of | double slot and key connection |
| Marking | – |
| Wiring | solid conductors (s): direct plug-in technology; fine-stranded conductors (st) and ferrule (f): spring actuation by screwdriver |
| Connection cross-section | s*: 0.08…1.5 mm², st*: 0.25…1.5 mm², f*: 0.14…0.75 mm² |
| Stripping length | 8…9 mm |
| Dimensions (W x H x D) | 12 mm x 100 mm x 68 mm |
*s: solid wire; st: stranded wire; f: with ferrule
Loading content ...
| Material compliance | KL2798 |
|---|---|
| REACH SVHC | no |
| POP | compliant |
| RoHS | compliant with exemption |
| RoHS exemption | 7c-I: Lead-containing electrical and electronic components in glass and ceramic materials, excluding dielectric ceramics in capacitors |
| China-RoHS | www.beckhoff.com/china-rohs-io |
| CA Prop65 | www.beckhoff.com/prop65 |
| Disclaimer | This statement and the information contained above are, to the best of our knowledge and belief, accurate, based on the information we have received from our suppliers. This information is in line with the current standard of technology and our suppliers’ technical documentation. The absence of the substances is not verified by Beckhoff Automation by means of analytical tests. When addressed to our customers any information contained in this document is subject to the terms and conditions expressed in the governing customer agreement. Our general terms and conditions apply. |
Loading content ...
Loading content ...
© Beckhoff Automation 2026 - Terms of Use


