Weidmüller BLF 5.08HC/03/90LR SN BK BX Female PCB Connector Guide

The Weidmüller BLF 5.08HC/03/90LR SN BK BX is a 3-pole female PCB connector engineered for industrial users who need compact pluggable connectivity without stepping away from robust terminal block design principles. With a 5.08 mm pitch, 90° conductor outlet direction, and PUSH IN with actuator technology, it supports clean board integration and straightforward conductor handling. In sectors where serviceability and repeatable assembly are strategic priorities, this kind of connector architecture remains highly relevant.

What This Connector Offers

This Weidmüller BLF 5.08HC/03/90LR SN BK BX female PCB connector is part of the OMNIMATE Signal BL/SL 5.08 family and is intended for field connection on printed circuit boards. Its 3-pole layout makes it a practical option for small power interfaces, compact control connections, signal groups, and modular board sections that do not need a higher pole count. Because it is pluggable, it can also help reduce service time when boards or connected modules need to be exchanged.

Technical Data Overview

The official product data lists this connector at 400 V, 24 A, and 0.2 to 2.5 mm² according to IEC values. Under UL, it is rated 300 V, 18.5 A, and AWG 26 to AWG 12. The maximum clamping range is 3.31 mm². The dimensions are 25.06 mm width, 29.6 mm depth, and 20.6 mm height. The product provides IP20 protection in the plugged state and IP10 when unplugged, supports coding, and uses a 10 mm stripping length. As part of the BLF 5.08HC series, it is also based on a single-row format and a rated cross-section of 2.5 mm².

Why a 3-Pole Female PCB Connector Matters

Three-pole connectors fill an important middle ground in board-level connection design. They are often ideal for compact power and control applications that need one more pole than a standard two-wire interface but do not justify a larger connector. The Weidmüller BLF 5.08HC/03/90LR SN BK BX supports that requirement while maintaining the family benefits of pluggability, recognizable handling, and practical conductor capacity.

PUSH IN Technology in Daily Use

PUSH IN with actuator technology is a strong operational feature because it supports fast conductor insertion and efficient field handling. In production, that can shorten wiring time. In maintenance, it can make reconnection work more predictable. The result is a connector that aligns well with real industrial workflows, where installation speed, clarity, and repeatability are often as important as pure electrical specification.

Material, Safety, and Environmental Considerations

The connector housing is made from PBT, with black main coloring and orange operational elements. The contact system uses copper alloy with a tinned surface, and the flammability class is UL 94 V-0. The documented operating range extends from -50 °C to 100 °C, and the installation range is -30 °C to 100 °C. RoHS compliance without exemption and no SVHC above 0.1 wt% are also listed, which supports use in projects where compliance documentation is commercially important.

Weidmüller BLF 5.08HC/03/90LR Application Areas

The Weidmüller BLF 5.08HC/03/90LR SN BK BX is suitable for industrial electronics, control boards, compact machine modules, instrumentation interfaces, and building technology products that need a small but dependable pluggable connection point. Search phrases such as Weidmüller BLF 5.08HC/03/90LR SN BK BX female PCB connector, 3 pole pluggable terminal block, and Weidmüller 5.08 mm female plug reflect these common specification and sourcing needs.

For more information about Weidmüller, exploring compatible headers and neighboring connection solutions is a useful next step in product selection.

Weidmüller BLF 5.08HC/03/90LR FAQ

What kind of application is this connector best for?

It is best for compact industrial PCB applications that need three connection points in a pluggable, service-friendly format.

What are the voltage and current ratings?

It is listed at 400 V and 24 A under IEC data, and 300 V and 18.5 A under UL data.

What wire sizes can be connected?

The connector supports 0.2 to 2.5 mm² conductors under IEC values and AWG 26 to AWG 12 under UL values.

Why choose a pluggable terminal block style connector?

Pluggable connectors can improve serviceability, simplify replacement, and support modular design principles in industrial electronics.

Does this connector support coded mating?

Yes. The datasheet indicates that the connector can be coded, which can help reduce mismating risk in more complex systems.