Procurement teams shortlist KL1154 with Kl2134 Beckhoff, Kl4032 Beckhoff and Kl1501 Beckhoff, aligning budget approvals, warranty terms, and multisite availability for smoother rollout across plants.
KL1154 - Beckhoff Bus Terminal Digital Input
The Beckhoff KL1154 Bus Terminal is a reliable Bus Terminal Digital Input module engineered for precision signal acquisition in automation systems, trusted by engineers for compact and efficient control cabinet integration.

| Brand | Beckhoff |
| Product Type | Bus Terminal Digital Input |
| Product | KL1154 |
KL1154 Beckhoff Bus Terminal Digital Input Technical Specifications
| Specification | Value |
|---|---|
| Connection technology | 2-/3-wire |
| Specification | positive/ground switching |
| Number of inputs | 4 |
| Nominal voltage | 24 V DC (-15%/+20%) |
| "0" signal voltage | 7.6...17.4 V |
| "1" signal voltage | 0...7 V and 18...30 V |
| Input filter | typ. 3.0 ms |
| Input current | typ. 5 mA |
| Current consumption K-bus | typ. 8 mA |
| Bit width in the process image | 4 inputs |
| Configuration | no address or configuration setting |
| Weight | approx. 55 g |
| Operating temperature | 0...55ยฐC |
| Storage temperature | -25...+85ยฐC |
| 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, CCC, UL, ATEX, IECEx |
| Ex marking | ATEX:II 3 G Ex ec IIC T4 GcIECEx:Ex ec IIC T4 Gc |
| Housing - Design form | compact terminal housing with signal LEDs |
| Housing - Material | polycarbonate |
| Housing - Dimensions (W x H x D) | 12ร mm x 100ร mm x 68 mm |
| Housing - Installation | on 35 mm DIN rail, conforming to EN 60715 with lock |
| Housing - Side by side mounting by means of | double slot and key connection |
| Housing - Marking | labeling of the BZxxxx series |
| Housing - Wiring | solid conductor (s), flexible conductor (st) and ferrule (f): spring actuation by screwdriver |
| Housing - Connection cross-section | s*: 0.08...2.5 mmยฒ,st*: 0.08...2.5 mmยฒ,f*: 0.14...1.5 mmยฒ |
| Housing - Connection cross-section AWG | s*: AWG28...14,st*: AWG28...14,f*: AWG26...16 |
| Housing - Stripping length | 8...9 mm |
| Housing - Current load power contacts | Imax: 10 A |
The Beckhoff KL1154 Bus Terminal Digital Input is designed with 4 inputs and supports 2-/3-wire connection technology, offering seamless integration into distributed I/O systems. Operating on a nominal 24 V DC supply, it recognizes โ0โ and โ1โ signals within defined ranges for accurate data transfer. With a typical input filter of 3 ms and input current of 5 mA, it ensures clean and reliable signal acquisition, even in noisy environments. Its lightweight 55 g compact housing makes it suitable for space-constrained installations.
Built for durability, the KL1154 is housed in a polycarbonate enclosure with IP20 protection, conforming to industrial standards such as EN 61000-6-2 and EN 61000-6-4 for EMC immunity and emission. It operates reliably within a temperature range of 0ยฐC to 55ยฐC and withstands vibration and shock per EN 60068-2. The pluggable wiring system with spring-actuated terminals ensures fast and secure connections, while approvals including CE, CCC, UL, ATEX, and IECEx highlight its compliance with global safety requirements. With 10 A current load power contacts, it delivers dependable operation in demanding industrial environments.
Applications of the KL1154 Bus Terminal Digital Input include machine control panels, factory automation, process monitoring, and distributed I/O networks. Engineers and system integrators value its easy DIN rail installation and ability to connect solid, flexible, or ferruled conductors without hassle. Maintenance teams benefit from its clear signal LEDs, which simplify troubleshooting and system diagnostics. With robust certifications, compact size, and reliable performance, the Beckhoff KL1154 is a trusted choice for OEMs, integrators, and plant operators worldwide. For further details, visit the official Beckhoff Bus Terminals catalog.







