Weidmüller 1003910000 WGK 4 VP/Z GY BX Feed-Through Terminal
The Weidmüller 1003910000 WGK 4 VP/Z GY BX is a grey feed-through terminal created for clean conductor transfer through devices, housings, and equipment interfaces. In industrial design, feed-through terminals are often overlooked in early sketches and then become essential once the physical build takes shape. They bring order to conductor routing, create a defined handover point between internal and external wiring, and make maintenance work significantly more professional and predictable.
What this terminal is and where it fits
This product belongs to the OMNIMATE Power WGK series and is built as a direct-mount feed-through terminal with screw connection. Its rated cross-section is 4 mm², while the product data supports a conductor range from 0.5 mm² to 6 mm² and AWG 30 to AWG 10 under UL-related reference values. That gives the Weidmüller 1003910000 WGK 4 VP/Z GY BX feed-through terminal a useful place in industrial equipment, compact control devices, and enclosure-based electronics where a structured wiring boundary is needed.
The grey housing makes this version especially suitable for neutral or general-purpose identification schemes where a grounding color would not be appropriate. In multi-terminal layouts, color distinction can be a practical design tool rather than a cosmetic choice.
Technical characteristics
The Weidmüller 1003910000 is specified at IEC 500 V / 32 A / 0.5–6 mm² and UL 300 V / 30 A / AWG 30–AWG 10. It uses screw connection technology and direct mounting, which supports a robust and maintainable installation concept. The combination of rated cross-section, current handling, and device-oriented feed-through construction makes it relevant for serious low-voltage industrial applications.
What matters here is not only the nominal numbers, but also the clarity of use. A feed-through terminal with this profile helps create an intentional conductor interface rather than an improvised pass-through arrangement. That can improve assembly quality, field service access, and overall system readability.
Why the grey version is useful
In many cabinets and device housings, not every feed-through position should be marked as grounding. That is where the grey version becomes valuable. It supports general conductor routing, organized differentiation, and cleaner visual separation between protective earth paths and other wiring functions. For OEMs and panel builders, that distinction can simplify both documentation and final installation logic.
Engineers often choose a specific terminal color for a reason. It can support internal standards, customer specifications, or simply a more intelligible wiring concept inside the equipment.
Practical value in industrial equipment
The Weidmüller 1003910000 WGK 4 VP/Z GY BX feed-through terminal is a sensible choice when a device wall or panel surface must act as a conductor interface. Instead of passing wires through undefined openings and then terminating them elsewhere, the designer can create a direct, structured, and inspectable termination point. This improves the overall engineering quality of the equipment and can reduce mistakes during wiring or maintenance.
That logic is especially valuable in compact machines, custom power units, industrial controls, filter assemblies, instrumentation housings, and OEM electrical devices that must look orderly and behave predictably in service.
Typical application scenarios
This grey feed-through terminal is commonly relevant in general-purpose conductor transitions, device wall terminations, cabinet interface points, compact low-voltage assemblies, and custom electronics housings. Because it does not imply PE identification through color, it gives designers more freedom in assigning non-grounded circuits where a clear and professional pass-through solution is still required.
Weidmüller 1003910000 For more information about Weidmüller, reviewing adjacent WGK feed-through terminal options can help establish a coherent color and conductor strategy across your product design.
Weidmüller 1003910000 FAQ
What is the Weidmüller 1003910000 used for?
It is used as a feed-through terminal for routing conductors through a device or enclosure boundary in a controlled and serviceable way.
Why choose the grey version instead of green/yellow?
The grey version is useful when the conductor path is not intended to be identified as protective earth. It supports a more neutral wiring classification.
What conductor sizes does this terminal support?
It supports a range from 0.5 mm² to 6 mm², with a rated cross-section of 4 mm², making it suitable for a variety of industrial wiring needs.
Does this terminal help with maintenance?
Yes. A dedicated feed-through terminal creates a clear interface point that is easier to inspect, label, and service than an improvised conductor pass-through.
Is the Weidmüller 1003910000 WGK 4 VP/Z GY BX feed-through terminal suitable for industrial devices?
Yes. Its ratings, mounting concept, and OMNIMATE Power positioning make it clearly relevant for industrial equipment and device-level conductor management.