Weidmüller 1003890000 WGK 4 VP GN/YE BX Feed-Through Terminal
The Weidmüller 1003890000 WGK 4 VP GN/YE BX is a feed-through terminal designed for direct mounting in device walls or equipment interfaces where safe and orderly conductor transfer is essential. In practical engineering, feed-through terminals play a very specific role. They create a reliable transition point between internal wiring and external conductors while supporting electrical clarity, mechanical stability, and maintenance-friendly installation. This is why they remain highly relevant in control cabinets, power electronics, filters, machine housings, and custom industrial equipment.
What the Weidmüller WGK 4 VP terminal is designed to do
This product belongs to the OMNIMATE Power WGK series and is configured as a feed-through terminal with screw connection and direct mounting. The green/yellow color immediately signals a grounding or protective earth related function in many installations, which makes the part especially suitable where PE continuity and visual identification matter. The rated cross-section is 4 mm², but the terminal accommodates a clamping range from 0.5 mm² to 6 mm², providing useful flexibility for different conductor types and installation needs.
Core technical features
The Weidmüller 1003890000 WGK 4 VP GN/YE BX feed-through terminal is specified at IEC 500 V / 32 A / 0.5–6 mm² and UL 300 V / 30 A / AWG 30–AWG 10. That rating profile makes it highly relevant for industrial device integration, especially where dependable wall feed-through solutions are needed for low-voltage power or grounding-related connections. The screw connection concept remains popular because it is familiar, serviceable, and easy to inspect during assembly and maintenance.
The housing material is Wemid (PA), and the terminal is intended for direct mounting. These details matter because feed-through components are not judged only by current rating. They are also chosen for how well they integrate into panel walls, support conductor handling, and preserve a neat installation inside compact or function-dense equipment.
Why feed-through terminals matter in industrial design
There is a major difference between routing wires through an improvised opening and using a dedicated feed-through terminal. A purpose-built terminal provides a defined electrical interface, better conductor control, and a more professional system structure. The Weidmüller 1003890000 WGK 4 VP GN/YE BX device helps separate internal and external wiring in a way that supports service work, installation discipline, and design repeatability.
In assemblies such as EMC filters, inverter subassemblies, machine modules, and compact power devices, that kind of structure is highly valuable. It makes the equipment easier to understand, easier to wire, and often easier to validate during inspection.
Grounding visibility and application logic
The green/yellow housing is one of the most useful aspects of this version. Color coding is not a minor convenience in industrial installations. It helps technicians identify grounding paths quickly, reduces the risk of wiring confusion, and supports safer field work. For equipment manufacturers, visual clarity also improves documentation and reduces ambiguity in multi-terminal layouts.
This makes the Weidmüller 1003890000 WGK 4 VP GN/YE BX feed-through terminal particularly relevant where protective earth paths or grounding transitions need to remain obvious and controlled.
Practical installation advantages
Because the terminal supports screw connection and direct mounting, it works well in equipment that values robust conductor retention and straightforward assembly. Feed-through terminals often sit in positions where access matters, so maintainability is part of their job. A technician should be able to identify the function, access the clamping point, and confirm the wiring status without unnecessary complexity.
That practical ease is one reason feed-through terminal blocks remain a staple in industrial equipment design, even as many connection technologies continue to evolve.
Where this terminal is commonly used
This Weidmüller WGK 4 VP terminal is a good fit for control cabinet interfaces, power electronics housings, EMC filter assemblies, machine wall penetrations, device connection points, and custom OEM equipment. It is especially valuable wherever a grounded, clearly identified conductor path must pass through a device boundary in a clean and controlled way.
Weidmüller 1003890000 For more information about Weidmüller, reviewing related feed-through and device terminal families can help standardize your enclosure connection strategy.
Weidmüller 1003890000 FAQ
What is the Weidmüller 1003890000 used for?
It is used as a feed-through terminal for transferring conductors through a device wall or mounting surface in a controlled, serviceable, and electrically defined way.
Why is this terminal green/yellow?
The green/yellow color is typically associated with grounding or protective earth identification, which helps make wiring functions clearer and safer in industrial equipment.
What conductor sizes can it handle?
This terminal is associated with a rated cross-section of 4 mm² and supports a conductor range from 0.5 mm² to 6 mm², giving flexibility for several installation scenarios.
Is a feed-through terminal better than a simple pass-through hole?
Yes, in most professional applications. A proper feed-through terminal creates an organized electrical interface, improves wiring clarity, and supports easier maintenance and inspection.
Where is the Weidmüller 1003890000 WGK 4 VP GN/YE BX most relevant?
It is highly relevant in device construction, machine interfaces, control cabinet equipment, grounding transitions, and other industrial environments where conductor routing must be clean, secure, and clearly identified.