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Beckhoff KL1408 – Overview
The Beckhoff KL1408 is an 8-channel digital input terminal designed to acquire binary 24 V DC control signals from the process level and transmit them in an electrically isolated form to the higher-level automation system. Its compact width and efficient wiring enable space-saving installation in control cabinets.
Key Features
- 
Eight digital input channels, 24 V DC nominal 
- 
Input specification EN 61131-2, type 1/3 
- 
Typical input filter time of 3.0 ms — helps avoid bouncing from mechanical switches 
- 
Single-wire connection technology for simplified wiring 
- 
LED indication for each input channel 
- 
Electrical isolation of 500 V between K-bus and field potential 
- 
Compact housing suitable for 35 mm DIN-rail mounting 
Technical Specifications
- 
Part Number: KL1408 
- 
Number of Inputs: 8 
- 
Nominal Voltage: 24 V DC (-15 % / +20 %) 
- 
Signal Voltage “0”: -3 V … +5 V (EN 61131-2, type 1/3) 
- 
Signal Voltage “1”: 11 V … 30 V (EN 61131-2, type 3) 
- 
Input Filter: typ. 3.0 ms 
- 
Input Current (typ.): 3 mA (EN 61131-2, type 3) 
- 
Current Consumption (K-bus): typ. 5 mA 
- 
Electrical Isolation: 500 V (K-bus / field potential) 
- 
Bit Width in Process Image: 8 input bits 
- 
Connection Technology: 1-wire 
- 
Housing Dimensions (W × H × D): 12 mm × 100 mm × 68 mm approx. 
- 
Operating Temperature: -25 °C … +60 °C 
- 
Storage Temperature: -40 °C … +85 °C 
- 
Protection Rating: IP20 
- 
Manufacturer: Beckhoff Automation 
- 
Weight (module): Approx. 55 g 
- 
Packed Dimensions: 12 × 7 × 6 cm (4.7 × 2.8 × 2.4 in) 
- 
Weight (packed): 0.10 – 0.23 kg (0.22 – 0.50 lb) 
Applications
- 
Reading of 24 V DC sensor signals, switches and push-buttons in industrial automation 
- 
Distributed I/O systems requiring compact digital input modules 
- 
Control cabinets where space is limited and high channel density is needed 
- 
Machine automation systems using Bus Terminal architecture 
Why Choose Beckhoff KL1408
- 
Compact 8-channel digital input in a slim housing, optimizing cabinet space 
- 
Reliable 24 V DC signal acquisition with electrical isolation for robust performance 
- 
Fast input detection with 3 ms filter for clean signal capture 
- 
Trusted brand with proven industrial-grade reliability and global shipping availability 
Order Now
The Beckhoff KL1408 8-Channel Digital Input Terminal is available for order and ships worldwide.
                                    Description
                                    
                                        
                                    
                                
                                Beckhoff KL1408 – Overview
The Beckhoff KL1408 is an 8-channel digital input terminal designed to acquire binary 24 V DC control signals from the process level and transmit them in an electrically isolated form to the higher-level automation system. Its compact width and efficient wiring enable space-saving installation in control cabinets.
Key Features
- 
Eight digital input channels, 24 V DC nominal 
- 
Input specification EN 61131-2, type 1/3 
- 
Typical input filter time of 3.0 ms — helps avoid bouncing from mechanical switches 
- 
Single-wire connection technology for simplified wiring 
- 
LED indication for each input channel 
- 
Electrical isolation of 500 V between K-bus and field potential 
- 
Compact housing suitable for 35 mm DIN-rail mounting 
Technical Specifications
- 
Part Number: KL1408 
- 
Number of Inputs: 8 
- 
Nominal Voltage: 24 V DC (-15 % / +20 %) 
- 
Signal Voltage “0”: -3 V … +5 V (EN 61131-2, type 1/3) 
- 
Signal Voltage “1”: 11 V … 30 V (EN 61131-2, type 3) 
- 
Input Filter: typ. 3.0 ms 
- 
Input Current (typ.): 3 mA (EN 61131-2, type 3) 
- 
Current Consumption (K-bus): typ. 5 mA 
- 
Electrical Isolation: 500 V (K-bus / field potential) 
- 
Bit Width in Process Image: 8 input bits 
- 
Connection Technology: 1-wire 
- 
Housing Dimensions (W × H × D): 12 mm × 100 mm × 68 mm approx. 
- 
Operating Temperature: -25 °C … +60 °C 
- 
Storage Temperature: -40 °C … +85 °C 
- 
Protection Rating: IP20 
- 
Manufacturer: Beckhoff Automation 
- 
Weight (module): Approx. 55 g 
- 
Packed Dimensions: 12 × 7 × 6 cm (4.7 × 2.8 × 2.4 in) 
- 
Weight (packed): 0.10 – 0.23 kg (0.22 – 0.50 lb) 
Applications
- 
Reading of 24 V DC sensor signals, switches and push-buttons in industrial automation 
- 
Distributed I/O systems requiring compact digital input modules 
- 
Control cabinets where space is limited and high channel density is needed 
- 
Machine automation systems using Bus Terminal architecture 
Why Choose Beckhoff KL1408
- 
Compact 8-channel digital input in a slim housing, optimizing cabinet space 
- 
Reliable 24 V DC signal acquisition with electrical isolation for robust performance 
- 
Fast input detection with 3 ms filter for clean signal capture 
- 
Trusted brand with proven industrial-grade reliability and global shipping availability 
Order Now
The Beckhoff KL1408 8-Channel Digital Input Terminal is available for order and ships worldwide.
 
   
         
         
         
         
         
         
          
         
                
               
          
           1-689-263-1985
            
            1-689-263-1985
           
                             
                     
                     
                     
                     
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
           
           
           
          