KL1418 - Beckhoff Bus Terminal Digital Input

The Beckhoff KL1418 Bus Terminal Digital Input is built for accurate signal acquisition in distributed automation systems. With eight input channels and 1-wire connection technology, it provides compact and efficient I/O handling. Operating at a 24 V DC nominal voltage, the KL1418 ensures reliable detection of digital signals, supporting “0” input voltages between -3…+5 V and “1” input voltages from 11…30 V in compliance with EN 61131-2 standards. Its 0.2 ms input filter enhances stability by eliminating noise and false triggering, while the 3 mA typical input current keeps energy consumption low. With a K-bus current draw of only 5 mA, it integrates seamlessly into large systems without overloading the bus.

Designed for industrial durability, the KL1418 Digital Input Terminal operates in harsh environments with temperatures from -25°C to +60°C and a relative humidity tolerance up to 95% without condensation. It is housed in a robust polycarbonate enclosure with signal LEDs for real-time diagnostics and is protected under an IP20 rating. Installation is simplified with a 35 mm DIN rail mount, spring-actuated wiring, and side-by-side modular expansion. International certifications including CE, UL, ATEX, IECEx, CCC, and DNV GL make it a trusted solution for global automation projects, while compliance with EMC and vibration/shock resistance standards guarantees reliable performance in dynamic industrial environments.

Applications for the Beckhoff KL1418 Bus Terminal Digital Input include machine automation, conveyor system monitoring, building management, packaging lines, and process control, where high-density input modules are required. With its precision, flexibility, and globally recognized approvals, the KL1418 empowers engineers to scale automation systems while maintaining reliability and safety. For industries aiming at efficient signal processing and long-term stability, the KL1418 is a proven choice in the Beckhoff Bus Terminals portfolio.