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KL2212 - Beckhoff Bus Terminal Digital Output
Beckhoff KL2212 Bus Terminal Digital Output delivers dual-channel 24V DC switching, ensuring safe and efficient control in automation systems.

| Brand | Beckhoff |
| Product Type | Bus Terminal Digital Output |
| Product | KL2212 |
KL2212 Beckhoff Bus Terminal Digital Output Technical Specifications
| Specification | Value |
|---|---|
| Connection technology | 4-wire |
| Nominal voltage | 24 V DC (-15%/+20%) |
| Current consumption K-bus | typ. 15 mA |
| Bit width in the process image | 4 inputs/4 outputs (2 outputs with no significance) |
| Configuration | no address or configuration setting |
| Weight | approx. 60 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 |
| Current consumption power contacts | typ. 15 mA + load |
| Max. output current | 0.5 A (short-circuit proof) per channel |
| Load type | ohmic, inductive, lamp load |
| Number of outputs | 2 |
The Beckhoff KL2212 Bus Terminal Digital Output is designed for reliable control of field devices in industrial automation. Operating on a 24 V DC nominal voltage, it provides 2 short-circuit proof outputs with a maximum load capacity of 0.5 A per channel. Its 4-wire connection technology ensures easy integration, while the bit width of 4 inputs/4 outputs makes it efficient for process image handling. The terminal draws only 15 mA from the K-bus and an additional 15 mA + load from power contacts, offering an energy-efficient solution. Built with polycarbonate housing and signal LEDs, it ensures safe diagnostics and streamlined installation on a 35 mm DIN rail.
With an IP20 protection rating and certifications including CE, UL, ATEX, and IECEx, the KL2212 complies with global safety standards. Its compact 12 x 100 x 68 mm design allows side-by-side mounting, making it highly scalable for modular control systems. The device performs reliably in temperature ranges from 0ยฐC to +55ยฐC and meets EN 61000 EMC immunity standards, ensuring stability in noisy industrial environments. Its ability to switch ohmic, inductive, and lamp loads further enhances its versatility in factory automation setups.
Applications of the KL2212 Digital Output Bus Terminal include packaging lines, conveyor systems, robotic cells, and lighting or actuator control. For junior engineers, the straightforward, address-free configuration reduces setup complexity. Senior automation professionals value its rugged design, diagnostic clarity, and dependable switching performance for continuous operation. Trusted across industries worldwide, the Beckhoff KL2212 Bus Terminal Digital Output is a proven choice for engineers seeking efficiency, flexibility, and long-term reliability.







