Weidmüller BCZ 3.81 AH13 BK BX 13-Pole Cover Hood
The Weidmüller BCZ 3.81 AH13 BK BX cover hood is a dedicated accessory for PCB plug-in connectors in the OMNIMATE Signal range. For engineers working with compact board connections, accessory selection is rarely a secondary issue. A correctly matched hood supports product consistency, protects the connector area, and contributes to a cleaner installation result. That is exactly where the Weidmüller BCZ 3.81 AH13 BK BX 13-pole cover hood becomes relevant.
Product Role in the Connector System
This product is not the mating connector itself. It is a hood accessory designed for the Weidmüller BC/SC 3.81 series. It is built for a 3.81 mm pitch format and a 13-pole layout. In industrial electronics, the difference between a good connector setup and a difficult one often comes down to fit, protection, and long-term serviceability. A properly matched accessory helps all three.
The Weidmüller BCZ 3.81 AH13 BK BX PCB connector accessory is especially relevant in applications where the connector area should remain organised and mechanically well managed. In real installations, this can support smoother assembly routines and more reliable field service access.
Technical Characteristics
The official product data identifies this part as a black cover hood in the OMNIMATE Signal BC/SC 3.81 family. It is designed for 13 poles and a 3.81 mm pitch. The material listed is PA 66 GF 30, and the specified cover screw tightening torque is 0.4 to 0.5 Nm. The net weight is approximately 9.2 g, which makes the part light enough for efficient assembly without compromising structural stability.
Why 13 Poles Changes the Accessory Choice
One reason this exact version matters is that a 13-pole format is not interchangeable with nearby pole-count variants in practical installation work. Even a small mismatch can create confusion in production, rework, or maintenance. This is why a clearly identified product such as the Weidmüller BCZ 3.81 AH13 BK BX cover hood supports better documentation and more accurate procurement.
For manufacturers handling multiple PCB connector variants, using the exact hood for the exact pole count reduces ambiguity. It also helps build cleaner bills of materials and simplifies spare parts planning, especially when connector families include many closely related configurations.
Material Performance and Assembly Value
The use of reinforced polyamide is important in a product like this. In PCB connector accessories, the material must be stable enough to maintain shape and withstand regular installation practice. Because the part is associated with a torque-controlled fastening method, it supports structured mechanical assembly rather than improvised fitting.
That matters in industrial environments where boards are installed at scale or where connection modules may be serviced more than once during the product life cycle.
Where the Weidmüller BCZ 3.81 AH13 BK BX Is Used
This 13-pole cover hood can be relevant in control electronics, industrial PCB interfaces, automation modules, signal boards, and compact equipment where OMNIMATE Signal connector accessories are part of the mechanical design strategy. It is a detail component, but in board-level engineering, detail components often protect the reliability of the overall assembly.
For broader product-family context, more information about Weidmüller may be useful when comparing connector accessories and related connection technologies.
FAQ
What is the Weidmüller BCZ 3.81 AH13 BK BX used for?
It is used as a cover hood accessory for compatible PCB plug-in connectors in the BC/SC 3.81 family. Its purpose is to support mechanical protection, a cleaner connector finish, and more controlled assembly.
Is this product specific to a 13-pole connector layout?
Yes. This version is specifically designed for 13 poles. That matters because connector accessories should match the pole count of the intended assembly for proper fit and installation accuracy.
What pitch is this accessory designed for?
The product is designed for a 3.81 mm pitch system, which is a standard format within this Weidmüller connector family.
What material is the cover hood made from?
The official product information lists PA 66 GF 30 as the insulating material. This is a reinforced polyamide material commonly used in industrial electrical components.
Does the product have a defined installation torque?
Yes. The cover screw tightening torque is specified as 0.4 to 0.5 Nm. This supports repeatable installation and helps maintain assembly quality.
Why would engineers choose a dedicated hood instead of a generic accessory?
A dedicated hood improves fit, reduces part-selection mistakes, supports better maintenance documentation, and aligns more reliably with the intended connector geometry. In industrial design, that precision is valuable.