Weidmüller 1003100000 HDC HQM TSLU 1PG21 Overview
The Weidmüller 1003100000 HDC HQM TSLU 1PG21 plug housing is engineered for industrial systems that require a side-entry metal hood in the compact HQ format. In many industrial projects, connector housing choice comes down to routing direction, thread size, enclosure strength, and installation safety. That is why search queries such as metal side entry plug housing, PG21 connector hood, HQ metal side-entry housing, and Weidmüller HDC HQM TSLU 1PG21 remain consistently relevant.
Product Type and Intended Use
The Weidmüller HDC HQM TSLU 1PG21 is a plug housing with cable entry from the side, built in HQ installation size and equipped with one PG21 external thread. The housing uses a side-locking clamp on the lower side and is rated IP65 in the plugged condition. This format is useful where top-entry routing is less practical and where a larger cable-entry size is needed for the selected cable or protective sleeve concept.
Important Metal Housing Detail
One of the key technical distinctions of the Weidmüller 1003100000 HDC HQM TSLU 1PG21 is that it belongs to the metal housing line. Weidmüller states that the HQ metal housings feature an internal plastic insert which ensures that the electrical conductor is not directly connected to the metal housing. This means the housing is insulated, an important design point for engineers reviewing protective construction and application suitability.
Why Side Entry and PG21 Are a Strong Combination
Side-entry housings solve layout challenges in many real installations. They help keep cable routes closer to the machine profile, reduce vertical obstruction, and often improve service access in narrow spaces. The PG21 thread adds another advantage: it supports a larger cable-entry size than smaller alternatives, which can matter when cable bundles, sleeving, or heavier-duty cabling are part of the design. Together, side entry and PG21 make this housing a practical choice for demanding industrial cable management scenarios.
Weidmüller 1003100000 Industrial Application Value
The Weidmüller HDC HQM TSLU 1PG21 is well suited to production equipment, transport technology, modular machine sections, and cabinet-edge interfaces where space above the connector is restricted. The HQ format keeps the connector footprint compact, while the metal housing concept supports robust mechanical performance. In applications where connector positions are exposed to handling, vibration, or repeated maintenance, these details can have real operational value.
Selection Perspective
In technical selection, the main questions are whether a side-entry hood is preferred, whether PG21 is the correct entry size, and whether a metal insulated housing is advantageous for the project. When those conditions align, the Weidmüller 1003100000 HDC HQM TSLU 1PG21 fits naturally into the RockStar® HQ architecture.
As with any heavy-duty connector housing, it should be matched with the right insert, mating base, and cable gland solution. For More information about Weidmüller, exploring the wider HQ series can help build a more consistent connector platform.
Weidmüller 1003100000 FAQ
What kind of housing is Weidmüller 1003100000?
It is a metal plug housing in the HQ series with side cable entry and one PG21 thread.
Why is PG21 significant in this model?
PG21 provides a larger cable-entry size, which can be useful for thicker cables, protective sleeving, or more demanding routing conditions.
Is the metal housing insulated?
Yes. Weidmüller notes that HQ metal housings use an internal plastic insert so the electrical conductor is not directly connected to the metal housing.
Weidmüller 1003100000 What environmental protection does it offer?
The housing is rated IP65 in the plugged condition, making it suitable for many industrial environments where ingress protection is necessary.
When is a side-entry metal housing the best choice?
It is especially valuable when the design needs strong mechanical housing performance, limited top clearance, and a side-routed cable path with a larger entry size.

