Weidmüller BLF 5.08HC/17/90 SN OR BX PCB Plug-in Connector
The Weidmüller BLF 5.08HC/17/90 SN OR BX PCB plug-in connector is built for board-level connectivity in applications where a 17-pole configuration provides the right balance between circuit density and manageable wiring. In industrial electronics, even a small increase in pole count can make a meaningful difference for signal grouping, power distribution, and interface design. This is one reason why this connector format is relevant across automation, instrumentation, and control electronics.
Understanding the Product Format
The Weidmüller BLF 5.08HC/17/90 SN OR BX is a female plug connector with a 5.08 mm pitch and a right-angle 90-degree structure. It belongs to a connector family intended for pluggable PCB interconnections, allowing wiring and board assemblies to be connected and disconnected more efficiently than fixed-only solutions. The PUSH IN connection system with actuator is especially useful in environments where installation speed and wiring consistency are priorities.
Searches for Weidmüller BLF 5.08HC/17/90 SN OR BX PCB plug-in connector often come from professionals looking for a 17-pole PCB connector, a Weidmüller female plug for industrial boards, or a 5.08 mm pluggable terminal connector for automation devices. The product aligns well with those application-driven requirements.
Main Technical Data
- Connector type: PCB plug-in connector, female plug
- Pitch: 5.08 mm
- Poles: 17
- Orientation: 90°
- Connection method: PUSH IN with actuator
- Maximum clamping range: 3.31 mm²
- IEC rating: 400 V / 24 A / 0.2–2.5 mm²
- UL rating: 300 V / 18.5 A / AWG 26–12
- Packaging: Box
Why Engineers Use 17-Position Connectors
A 17-pole connector is not as common as lower round-number pole counts, but that is exactly why it is useful. Many electronic designs have application-specific connection needs that do not map neatly to 12, 16, or 20 poles. Choosing the Weidmüller BLF 5.08HC/17/90 SN OR BX connector can help avoid unused positions while still supporting organized connectivity for specialized boards and modular equipment.
This matters in industrial design because unused connector capacity can affect enclosure size, connector spacing, and cost planning. A more tailored pole count may support a cleaner overall architecture, particularly in products developed for one defined operational purpose.
Installation and Maintenance Perspective
The PUSH IN with actuator format is one of the strongest functional benefits of the Weidmüller BLF 5.08HC/17/90 SN OR BX PCB connector. In repetitive assembly environments, direct conductor insertion can support a more efficient wiring sequence. During maintenance, the actuator provides controlled access for conductor release or repositioning, which is helpful when service technicians need to make changes without excessive handling complexity.
The 90-degree design also helps where board depth is limited. Instead of forcing wires upward, the connector allows a more compact lateral cable path. That can contribute to better internal airflow, more predictable wire bundling, and improved accessibility in crowded housings.
Common Application Environments
This 17-pole Weidmüller PCB plug-in connector can be relevant to industrial communication boards, machine interface electronics, I/O distribution units, building automation systems, process monitoring modules, and custom OEM control devices. Any system that benefits from pluggable field wiring and structured board interfaces may find this connector format useful.
Its orange housing and established industrial form factor also support quick visual identification, which can be beneficial during assembly and troubleshooting.
Weidmüller BLF 5.08HC/17/90 FAQ
What makes the Weidmüller BLF 5.08HC/17/90 SN OR BX different from lower pole-count versions?
The main difference is the 17-pole configuration, which supports more connections in a single interface and can better match specialized board requirements.
Is this connector suitable for modular PCB systems?
Yes. Because it is pluggable, it is well suited to modular systems that need easier installation, replacement, or pre-assembled wiring concepts.
Why is a female plug connector important in PCB design?
A female plug connector is used as the removable side of a pluggable connection system. It helps simplify service access and supports more flexible assembly methods.
Does the product support both signal and power-related applications?
Within its published ratings and design limits, it can be used in applications involving signal wiring, control circuits, and selected power distribution tasks on industrial boards.
Is 5.08 mm pitch still widely used?
Yes. It remains one of the most recognized and practical industrial connector pitches because it offers a stable balance of spacing, usability, and compatibility with many board-level designs.
What kind of users typically look for this product?
Typical users include PCB designers, electrical engineers, automation equipment manufacturers, procurement teams, and maintenance professionals involved in industrial connectivity.
For more information about Weidmüller, it helps to compare matching headers and related pluggable PCB connectivity products in the same OMNIMATE family.

