Beckhoff KL1104 4-Channel Digital Input Bus Terminal
$ 47
KL1104
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4-channel digital input terminal for 24 V DC systems
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3.0 ms input filter eliminates bounce from mechanical switches
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Electrical isolation between K-bus and field potential
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Integrated LED indicators for each channel
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Supports 2-/3-wire sensor connections
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ATEX and IECEx certified for hazardous area applications
Beckhoff KL1104 4-Channel Digital Input Bus Terminal
The Beckhoff KL1104 is a 4-channel digital input Bus Terminal designed for capturing binary 24 V DC control signals from the process level and transmitting them in an electrically isolated form to higher-level automation systems. Featuring a 3.0 ms input filter, it effectively eliminates signal bouncing caused by mechanical switches, ensuring reliable input acquisition. The KL1104 complies with EN 61131-2, type 1 specifications and includes integrated LED indicators for each channel’s signal status. With +24 V DC and 0 V DC sensor supply connections, it is built for robust performance in industrial environments and is certified for use in hazardous areas under ATEX and IECEx standards.
| Specification | Details |
|---|---|
| Connection Technology | 2-/3-wire |
| Specification Standard | EN 61131-2, type 1 |
| Number of Inputs | 4 |
| Nominal Voltage | 24 V DC (-15% / +20%) |
| “0” Signal Voltage | -3…+5 V |
| “1” Signal Voltage | 15…30 V |
| Input Filter | Typ. 3.0 ms |
| Input Current | Typ. 5 mA |
| Current Consumption (K-bus) | Typ. 5 mA |
| Electrical Isolation | 500 V (K-bus/field potential) |
| Bit Width in Process Image | 4 inputs |
| Configuration | No address or configuration setting required |
| Weight | Approx. 55 g |
| Operating Temperature | -25 °C to +60 °C |
| Storage Temperature | -40 °C to +85 °C |
| Relative Humidity | 95%, no condensation |
| Vibration/Shock Resistance | EN 60068-2-6 / EN 60068-2-27 compliant |
| EMC Immunity/Emission | EN 61000-6-2 / EN 61000-6-4 compliant |
| Protection Rating / Installation Position | IP20 / Variable |
| Pluggable Wiring | For all KSxxxx Bus Terminals |
| Approvals/Markings | CE, CCC, UL, ATEX, IECEx, DNV GL |
| Ex Marking (ATEX) | II 3 G Ex ec IIC T4 Gc |
| Ex Marking (IECEx) | Ex ec IIC T4 Gc |
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