Weidmüller 1005340000 BCZ 3.81 AH09 BK BX for 9-Pole PCB Connector Assemblies
The Weidmüller 1005340000 BCZ 3.81 AH09 BK BX cover hood is intended for connector assemblies where a 9-pole PCB plug-in interface needs a matching protective accessory. As pole count increases, connector size grows and accessory fit becomes more critical. A properly matched hood helps support a more stable and more professionally finished connection system, especially in products that may be handled, serviced, or replaced in the field.
The Weidmüller BCZ 3.81 AH09 BK BX hood is listed as a black cover hood for PCB plug-in connectors in the OMNIMATE Signal BC/SC 3.81 series. It is designed for 9 poles, with 3.81 mm pitch, one-row family geometry, box packaging, a specified cover screw torque of 0.4 to 0.5 Nm, and a net weight of about 6.7 g. The Weidmüller product pages also describe it as a hood for protecting the PCB plug-in connector.
Why a 9-Pole Hood Is More Than a Simple Accessory
The Weidmüller 1005340000 BCZ 3.81 AH09 BK BX 9-pole cover hood exists because connector protection has to scale with connector size. On wider interfaces, the mechanical value of a dedicated hood becomes even clearer. It helps keep the connector presentation consistent, supports a more complete outer structure, and can improve handling during plugging, unplugging, and inspection.
These details matter in professional electronics because the connector area is often the point where users and technicians interact directly with the device.
Compatibility Within the OMNIMATE Signal Family
The Weidmüller BCZ 3.81 AH09 BK BX PCB connector hood is designed for the BC/SC 3.81 series, which means it is aligned with a known connector platform rather than acting as a standalone generic part. The 3.81 mm pitch and 9-pole format together define the mechanical fit. For designers, that reduces uncertainty and supports a more systematic connector selection process.
The specified 0.4 to 0.5 Nm cover screw torque is also worth noting because it indicates an installation standard that can be documented and repeated in production.
Why This Matters in Product Development
The Weidmüller 1005340000 BCZ 3.81 AH09 BK BX black hood is small, but its role is strategic. It contributes to connector protection, helps improve handling quality, and supports a more complete product finish. In industrial electronics, those factors often affect both perceived quality and real-world usability.
When a product is designed for long service life, even minor connector accessories can help reduce handling risk and improve maintenance experience. That is especially true in environments where boards are integrated into serviceable housings or modular equipment.
Application Areas
A Weidmüller 1005340000 BCZ 3.81 AH09 BK BX cover hood is well suited to industrial controller boards, automation electronics, interface products, communication modules, monitoring devices, and OEM systems that use 9-pole pluggable PCB connectors within the BC/SC 3.81 family.
Weidmüller 1005340000 For more information about Weidmüller, it is helpful to assess connector accessories as part of the total PCB connection architecture rather than as isolated items.
Weidmüller 1005340000 FAQ
What does the Weidmüller 1005340000 BCZ 3.81 AH09 BK BX do?
It serves as a cover hood for a 9-pole PCB plug-in connector, helping protect the connector interface and provide a more complete mechanical assembly.
Why does a 9-pole connector need its own hood version?
Because connector accessories are dimension-specific. A 9-pole hood is designed to match the width and geometry of a 9-position connector.
What connector family is it part of?
It is part of Weidmüller’s OMNIMATE Signal BC/SC 3.81 family, which uses a 3.81 mm pitch.
What tightening torque is specified?
The cover screw torque range is 0.4 to 0.5 Nm, supporting controlled installation and repeatable assembly.
Why is a matched hood useful in industrial electronics?
It improves connector protection, handling, and interface quality, all of which matter in production, commissioning, and service work.
Where might this product be used?
It may be used in controller boards, PCB-based automation modules, interface devices, and OEM electronics that use 9-pole pluggable connectors.