Weidmüller 1005280000 BCZ 3.81 AH03 BK BX Cover Hood for 3-Pole PCB Plug-In Connectors
The Weidmüller 1005280000 BCZ 3.81 AH03 BK BX cover hood belongs to a product category that looks small on paper but plays a very practical role in PCB connector systems. In board-to-wire connectivity, the quality of the visible connection is only one part of the story. Protection, handling safety, assembly consistency, and a more finished connector interface also matter. That is exactly where a dedicated accessory hood becomes useful.
According to Weidmüller product information, the Weidmüller BCZ 3.81 AH03 BK BX PCB connector hood is a black accessory cover hood for PCB plug-in connectors in the OMNIMATE Signal BC/SC 3.81 series. It is designed for 3 poles, with a 3.81 mm pitch, box packaging, and a tightening torque for the cover screw of 0.4 to 0.5 Nm. The product is also listed as RoHS compliant, with no REACH SVHC above 0.1 wt%, and a net weight of about 2 g.
What a Cover Hood Actually Does
The Weidmüller 1005280000 BCZ 3.81 AH03 BK BX cover hood is designed to protect the PCB plug-in connector. That sounds simple, but in practice it contributes to several useful outcomes. First, it helps provide a cleaner and more protected outer interface around the plug-in connector area. Second, it can improve handling during assembly and service. Third, it supports a more complete and professional connector layout in devices where exposed connector geometry would otherwise remain unprotected.
For electronics designers and device manufacturers, small accessory parts like this can improve perceived build quality as well as practical service behavior. A connector system is not just about conductivity. It is also about mechanical usability, secure assembly, and long-term field handling.
Technical Role in the OMNIMATE Signal BC/SC 3.81 Family
The Weidmüller BCZ 3.81 AH03 BK BX hood is part of the OMNIMATE Signal BC/SC 3.81 ecosystem. That matters because accessories only deliver real value when they fit within a connector family that has clear dimensional logic. The 3.81 mm pitch and 3-pole format mean this hood is intended to align with a matching connector geometry rather than acting as a generic add-on.
The specified cover screw tightening torque of 0.4 to 0.5 Nm is also important. It shows that even an accessory component is meant to be installed with controlled mechanical force. That helps support repeatable assembly quality across production and service operations.
Why Pole Count Matters
In the BCZ 3.81 AH family, pole count is not a minor naming difference. It determines fit. The Weidmüller 1005280000 BCZ 3.81 AH03 BK BX 3-pole cover hood is specifically matched to a 3-pole connector position within the product family. That precision matters because PCB connector accessories must align exactly with the housing dimensions and connection layout of the underlying plug-in system.
This is one reason engineers prefer family-specific accessories instead of general-purpose protective pieces. The result is a better mechanical match and a more reliable finished interface.
Weidmüller 1005280000 Where This Hood Is Most Useful
A Weidmüller 1005280000 BCZ 3.81 AH03 BK BX connector hood is relevant in compact electronics, industrial control boards, interface modules, building automation electronics, instrumentation products, and OEM devices that use 3-pole OMNIMATE Signal plug-in connectors. It is especially useful when designers want to improve connector protection without complicating the board layout itself.
Weidmüller 1005280000 For more information about Weidmüller, the broader OMNIMATE range is worth reviewing when selecting PCB connectors and matching accessories as a unified design system.
FAQ
What is the Weidmüller 1005280000 BCZ 3.81 AH03 BK BX?
It is a black cover hood accessory for protecting a PCB plug-in connector in the OMNIMATE Signal BC/SC 3.81 series. This specific version is designed for 3 poles.
Why would a PCB plug-in connector need a cover hood?
A cover hood helps protect the connector area, supports cleaner handling during assembly, and contributes to a more finished and service-friendly connection interface.
What does 3.81 mean in the product name?
It refers to the pitch of the connector family, which is 3.81 mm. In PCB connector systems, pitch is a key dimensional parameter that determines compatibility.
Why is the 3-pole specification important?
Because the hood must match the pole count of the connector it is designed to protect. A 3-pole hood is not interchangeable with 4-pole, 5-pole, or larger variants in the same family.
What installation torque is specified for the cover screw?
The product family information lists a tightening torque range of 0.4 to 0.5 Nm for the cover screw. This helps support repeatable and controlled assembly.
Is the product environmentally compliant?
Yes. The product is listed as RoHS compliant and without REACH SVHC above 0.1 wt%, which is relevant for regulated product development and documentation workflows.