HD Bus Terminal, 8-channel digital output 30 V AC/DC, 2 A, solid state KL2798
Signal LEDs
Power contact
+24 V
Power contact 0 V
Output 1 
Output 2 
Output 3 
Output 4 
Output 5 
Output 6 
Output 7 
Output 8 
Output 1'
Output 2'
Output 3'
Output 4'
Output 5'
Output 6'
Output 7'
Output 8'
Top view 
Contact assembly 

KL2798 | HD Bus Terminal, 8-channel digital output 30 V AC/DC, 2 A, solid state

The digital KL2798 Bus Terminal provides eight switches that can be used like a relay contact for AC/DC voltages. The electronic switch is realised 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.

Technical data KL2798
Connection technology 2-wire
Number of outputs 8 x make contacts
Rated load voltage 0…30 V AC/DC (only ohmic load: 0…48 V DC)
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 voltage 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
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
Special features substitute for relay contacts, potential-free
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
Approvals CE, UL
Related products  
EL2798 8-channel digital output terminal, 2-wire, 48 V AC/DC, 2 A