How to choose between FRET+CG, Inter-VTU and Loco-VTU?
Complete Raility guide to identify the right coupler for freight, passenger stock and locomotive connections, with every reference from R.401 to R.407.
Last updated: 2026-07-23
Quick answer
To compare FRET+CG, Inter-VTU and Loco-VTU, use this rule: freight = R.401/R.405, OCEM-DEV passenger stock = R.402/R.406, VTU coaches = R.403/R.407, locomotive link = R.404.
Action summary
- Start from real consist usage.
- Validate the exact Raility reference before checkout.
- Keep links to category, brand and guides for updates.
How to choose between FRET+CG, Inter-VTU and Loco-VTU?
The Raility range makes it easy to cover the most common model railway uses: FRET+CG for freight stock, Inter-VTU for passenger coaches, and Loco-VTU for locomotive connections. This guide brings together the full range so you can choose the right reference quickly.
The Raility range at a glance
The Raility family includes 7 distinct references: R.401, R.402, R.403, R.404, R.405, R.406 and R.407.
For freight: R.401 and R.405
For wagons and freight consists, the most suitable references are R.401 in x4 and R.405 in x20+4. They are the direct choices when you want a freight-oriented setup that stays consistent with real operation.
For passenger coaches: R.402 and R.406
OCEM, DEV and similar passenger coaches are best matched with R.402 in x4 and R.406 in x20+4. These two references complete the passenger side of the Raility range and give a neat visual result between vehicles.
For VTU stock: R.403 and R.407
VTU coaches and newer passenger formations use R.403 in x4 and R.407 in x20+4. These references are ideal when you want a short, fixed coupler for modern or mixed passenger stock.
For locomotive connections: R.404
When the consist must be coupled to a locomotive, the reference to choose is R.404. It is designed for situations where the first coach is connected to a loco and you want a stable, realistic and easy-to-use setup.
Compatibility and everyday use
Raility couplers are designed to remain compatible with common NEM use while providing a more realistic appearance. To go further, see our first Raility guide, the Raility category and the Raility brand page.
Which product should you choose for your consist?
- R.401 and R.405 for freight.
- R.402 and R.406 for OCEM/DEV coaches and similar passenger stock.
- R.403 and R.407 for VTU coaches.
- R.404 for a train and locomotive pairing.
Conclusion
If you want one simple rule, start from the type of stock: freight with R.401 and R.405, OCEM/DEV passenger stock with R.402 and R.406, VTU with R.403 and R.407, and locomotive connections with R.404. This gives you a clear overview of the full Raility range.
Sources and method
FRET+CG / Inter-VTU / Loco-VTU FAQ
Which reference is best for freight use?
For freight, use R.401 in x4 or R.405 in x20+4 depending on required quantity.
What is the difference between OCEM-DEV and VTU use-cases?
OCEM-DEV generally maps to R.402/R.406, while VTU coaches map to R.403/R.407.
When should I choose R.404?
Choose R.404 for train-to-locomotive connection when you need stable and realistic operation.
