Key takeaways
- The letters carry the information, not the number. R means fast, A and B denote coach classes, e stands for electric, m for a combustion engine.
- A fraction like 4/4 states the powered axles relative to all axles – newer vehicles carry three-digit numbers instead.
- SBB is organised into four divisions, of which SBB Cargo and SBB Infrastruktur operate independently.
- The interval timetable is the real product. It decides what stands at which hub and when – and so shapes your tour planning.
- Metre gauge is not SBB. RhB, MGB and the other narrow-gauge railways are separate companies with their own rolling stock.
Contents
- 1.Fact file
- 2.Business areas
- 3.Structure & brands
- 4.History at a glance
- 5.How to recognise the company
- 6.Strengths and weaknesses
- 7.The alphabet before the number
- 8.Why 4/4 isn’t a model number
- 9.Four divisions, three languages, one timetable
- 10.What you need to learn afresh as a German spotter
- 11.When red doesn’t mean SBB
- 12.Verdict
- 13.Frequently asked questions
Fact file
| Legal form | Special-statute public limited company (Aktiengesellschaft) owned by the Swiss Confederation |
|---|---|
| Trilingual name | SBB in German, CFF in French, FFS in Italian |
| Electrification system | 15 kV / 16.7 Hz – the same as in Germany and Austria |
| Track gauge | 1,435 mm; the numerous metre-gauge railways belong to other companies |
| Divisions | Passenger services, freight, infrastructure and property |
| Freight | SBB Cargo AG, with SBB Cargo International for international traffic |
| Vehicle designation system | Letters plus a number – the letters carry the information |
| Timetable principle | Integrated interval timetable with coordinated hub connections |
| Official website | www.sbb.ch/de |
Business areas
Structure & brands
History at a glance
How to recognise Schweizerische Bundesbahnen (SBB)
Does the train really belong to Schweizerische Bundesbahnen (SBB)?
- Letters before the number – Re, RABe, Ee or Am always appear on the vehicle
- A fraction instead of a number on older vehicles: Re 4/4 means four powered axles out of four
- Red with white lettering – the standard livery of most SBB vehicles
- Country code CH on the data panel ahead of the vehicle keeper marking
- Double-deck trains in long-distance services – IC2000 coaches and RABe 502 sets define the main axes
- Metre-gauge vehicles are not SBB – the narrower bodies belong to RhB, MGB and others
- Trilingual markings on coaches and at stations
Strengths and weaknesses
What the company stands for
- The letter system is logical and lets you classify a vehicle without prior knowledge of the individual type
- The interval timetable and hub principle make tour planning unusually reliable
- Same electrification system as Germany – many vehicles cross the border in regular service
- The north–south axis concentrates international freight onto a handful of routes
- Mountain routes offer photo opportunities found nowhere else in central Europe
Where it falls short
- The designation system is awkward for beginners and can't be guessed
- Many eye-catching railways in the country don't belong to SBB at all, despite using a similar scheme
- Since the base tunnel opened, traffic on the Gotthard mountain route has dropped noticeably
- Regional services often run under subsidiary companies with their own brand
- Railway-adjacent locations in narrow valleys are often hard to reach legally
Updated: August 2026 – In Germany a number sits on the driver’s cab, in Switzerland letters come first. “Re 460”, “RABe 502”, “Ee 922” – it looks like a jumble of abbreviations and is in fact the most sophisticated designation system in central Europe. The Schweizerische Bundesbahnen has run it for over a hundred years, and it works for every vehicle in the country.
Log Swiss codes the right way
Letters, number and location in a single entry – so "some red locomotive" becomes a sighting you can rely on.
The alphabet before the number
Every character in a Swiss vehicle code has a fixed meaning. Capital letters describe the speed class or coach class, lower-case letters the type of traction.
| Character | Meaning | Example | What’s in front of you |
|---|---|---|---|
| R | cleared for high speeds | Re 460 | express locomotive |
| A / B | first or second coach class | RABe 511 | multiple unit with both classes |
| D | luggage compartment on board | RABDe 500 | tilting train with luggage space |
| E | shunting vehicle | Ee 922 | shunter within station limits |
| e / m | electric / combustion engine | Am 843 | diesel locomotive |
| h | rack traction | HGe 4/4 | mountain railway vehicle |
The number that follows is three digits on newer vehicles and simply a running number. On older ones it’s a fraction – and that’s not decoration, it’s a technical statement.
Why 4/4 isn’t a model number
The fraction states the powered axles relative to all axles. A Re 4/4 I has four powered axles out of four and so full adhesion – no minor detail in a mountainous country. A locomotive marked 4/6, by contrast, would be hauling two unpowered axles along with it.
That’s exactly why Switzerland stuck with this system for so long: it tells you something about tractive effort on gradients, not just about the manufacturer. On newer vehicles the fraction has been replaced by three-digit numbers, but the letters remained.
Read the letters first, then take the photo
If you note down the code on the vehicle, you've already captured the type of traction and its purpose – even if you don't recognise the specific type. It's the fastest way to produce usable entries abroad instead of sorting through photos afterwards.
Four divisions, three languages, one timetable
SBB is a special-statute public limited company owned by the federal government. Operations are organised into divisions: passenger services, freight, infrastructure and property. SBB Cargo and SBB Infrastruktur both operate independently within this structure.
In long-distance services, the Re 460 and the double-deck trains of the RABe 502 class define the picture, while regional services in eastern Switzerland are shaped by the vehicles of Thurbo.
More important to a spotter than the structure is the integrated interval timetable. Since 1982 the hub connections have been laid out so that trains arrive shortly before the full or half hour, make connections, and then depart together. That creates a station dynamic you don’t find in Germany: five minutes of intense activity, then nothing.
Read the whole code
All the letters, not just the first two. A D or an h changes the classification completely.
Note the number or fraction
Three digits on newer vehicles, a fraction on older ones. Both belong in the logbook.
Assess the track gauge
A narrower body and tighter track mean metre gauge – and so a different company.
Check the data panel
Country code CH plus the vehicle keeper marking. Without this detail, the sighting stays a guess.
Note the hub time
Because the interval is so regular, a sighting can almost always be reconstructed later from the time alone.
Work out the fraction
100 percent means: no unpowered axle, full adhesion mass on the traction.
Plan your Gotthard day properly
Other people's sightings show you when the mountain route and the base tunnel actually see traffic.
What you need to learn afresh as a German spotter
Voltage and gauge are identical, and staff speak German – yet plenty is different. You’ll need to relearn the designations, which is the biggest hurdle. On top of that comes the sheer number of railways that aren’t part of SBB: BLS and SOB on standard gauge, plus dozens of metre-gauge railways with their own rolling stock.
Anyone wanting to see the variety in one place should head to Basel SBB: Swiss, German and French traffic all meet there. A contrasting programme is offered by the metre-gauge Rhätische Bahn in Graubünden.
Platform access is free, and photographing from the platform is common. Entering track areas, however, is treated considerably more strictly than in many neighbouring countries – see the article on house rules at stations. And the Gotthard has changed: since the base tunnel opened, you’ll find the transit traffic down below and the photo opportunities up top.
When red doesn’t mean SBB
It's an SBB vehicle when …
- the data panel shows CH and the SBB vehicle keeper marking
- the designation fits the letter scheme and it's on standard gauge
- the train category belongs to an SBB product
Look more closely when …
- a regional train runs under a subsidiary company's brand
- a freight locomotive runs on the transit axis in a different livery
- a vehicle looks the same but belongs to a private railway
It's not SBB when …
- the vehicle runs on metre gauge
- the data panel shows a different vehicle keeper marking
- the train is running for BLS, SOB or a foreign railway
Alpine locations are no walk in the park
Along the northern and southern ramps, the railway runs through steep terrain. Slopes above the track are not a photo spot, and tunnel portals even less so. Use marked paths and official viewpoints; for preparation, the article on weather and emergencies at the spot helps.
Verdict
Switzerland asks a spotter for a single investment: learn the letter system once. After that you can classify every vehicle in the country, even on railways that have nothing to do with SBB – because the scheme is the same nationwide.
What remains after that is the most pleasant planning foundation in Europe. The interval timetable tells you to the minute when there’s activity at which hub – how to follow that live is covered in the article on tracking SBB trains live.
Verdict in brief
At SBB, the information sits in the letters, not the number. Anyone who can tell Re, RABe and Ee apart has understood the Swiss system – and will spot instantly when a vehicle isn't SBB at all.
Take the Swiss alphabet into your logbook
Code, number and hub time in one entry – so every Alpine sighting stays traceable even years later.
Summary
- Anyone spotting in Switzerland first learns an alphabet and only then vehicle types – it's the detour that pays off fastest.
- Passenger services, freight and infrastructure are separate divisions, each with its own logic and its own fleet.
- The Gotthard has two faces: the base tunnel for transit and the mountain route for the photos.
- Alongside SBB run BLS, SOB and several metre-gauge railways – that variety in a small space is the real appeal.
Frequently asked questions
What does Re mean at SBB?
R stands for vehicles cleared for high speeds, e for electric traction. A Re 460 is therefore a fast electric locomotive. The system predates any class number and is still applied consistently today, even on brand-new vehicles.
Why do some locomotives carry a fraction?
The fraction states the ratio of powered axles to total axles. A Re 4/4 II has four powered axles out of four, an Ee 3/3 three out of three. Newer vehicles carry three-digit numbers instead; the Re 4/4 II is therefore usually listed today as the Re 420.
Does SBB also run freight trains?
Yes, through SBB Cargo AG for domestic traffic. For Alpine transit there is additionally SBB Cargo International, a joint venture with Hupac. Both are separate companies with their own operating licence – the group name alone doesn't tell you who the operator is.
Do RhB and the Matterhorn Gotthard Bahn belong to SBB?
No. The Rhätische Bahn and the Matterhorn Gotthard Bahn are independent companies on metre gauge. They use the same designation scheme but are not part of the federal SBB. Logging their vehicles as SBB is the same mistake as attributing a German private railway to DB.
What's different about spotting in Switzerland compared with Germany?
Technically, very little: 15 kV at 16.7 Hz and standard gauge are identical. What's different is the vehicle designations, the trilingual labelling, and the interval timetable, which bunches arrivals at hubs. For photos that means: everything happens at once at the big stations, then nothing for a while.
Where is the Gotthard mountain route still interesting?
Since the base tunnel opened, transit traffic runs through it, leaving noticeably thinner traffic up top. Even so, the classic locations at the northern ramp at Wassen and the southern ramp at Giornico remain unmatched for photography. If you're after volume, Bellinzona is the better bet.
What does RABe mean compared with Re?
RABe denotes a multiple unit with first and second class and electric traction: R for fast, A for first class, B for second class, e for electric. The RABe 501 Giruno is one such train. Add a D, as on the RABDe 500, and the vehicle also has a luggage compartment.
Who operates the Swiss rail network?
For the largest part, the SBB Infrastruktur division. Alongside that, numerous private railways such as BLS or SOB maintain their own infrastructure. Switzerland is therefore less uniformly organised than it appears from outside.
Am I allowed to take photographs at Swiss stations?
From the platform this is common and normally unproblematic. Track areas and operational facilities, however, are strictly off limits, and this is taken more seriously than in many other countries. Keep your distance and stay on publicly accessible ground – the basic rules are covered in the article on safe distance from the track.
What train categories exist in Switzerland?
IC and IR for long-distance services, RE and R for regional services, S with a line number for the S-Bahn. International trains run as EC or under their own product names. Unlike Germany, there's no dedicated high-speed brand – Switzerland relies on dense hub connections rather than top speed.
Log vehicles from Schweizerische Bundesbahnen (SBB)
Company, vehicle, location and date logged in seconds – and visible to the community.
The operational level in the railway operator database
Who actually runs the trains, with keeper markings and identifying features on the vehicle.
Schweizerische Bundesbahnen (SBB)
The Swiss Federal Railways are the state railway of Switzerland and present across the whole country. This page shows what that means for the network and how to recognise its vehicles.
FreightSBB Cargo AG
SBB Cargo AG operates rail freight transport in Switzerland. Anyone looking for its trains should understand how traffic bunches on the approach lines to the base tunnels.
FreightSBB Cargo International AG
SBB Cargo International AG is a Swiss freight company. Its name suffix suggests a cross-border focus – typical of transit traffic through the Alps.
Local & regionalThurbo AG
Thurbo AG runs regional passenger rail services. Its made-up name is a textbook case of how regional companies present themselves in rail operations – and why the data panel matters more than the lettering.
Local & regionalBLS AG
BLS AG is one of Switzerland's big railway companies. Its example is a good way to explain how a mountain line and a base tunnel differ operationally.
Local & regionalSOB Südostbahn AG
SOB Südostbahn AG operates rail services in eastern Switzerland. To understand its network, you need to know how cantonal borders structure Swiss regional traffic.
Typical vehicles
SBB Re 460 (Lok 2000)
The Re 460 is the SBB's modern long-distance locomotive: 119 machines, 200 km/h, an unmistakably rounded front. Here's how to recognise it and its sister designs.
ClassSBB Re 420 (Re 4/4 II)
The Re 4/4 II is the standard electric locomotive of the SBB and is now called the Re 420. This page shows you how to recognise it and what the two designations mean.
ClassSBB RABe 501 (Giruno)
The RABe 501 "Giruno" is SBB's Stadler high-speed train for the Gotthard Base Tunnel. Here's how to read its designation and identify it reliably in the field.
ClassSBB RABe 502 (FV-Dosto)
The RABe 502 is SBB's double-deck long-distance train from the Twindexx family. Here's how to read the designation and identify it reliably on the platform.
ClassSBB RABDe 500 (ICN)
The RABDe 500 is SBB's InterCity tilting train: a seven-car multiple unit that leans into curves. Here's how to read its designation and spot it in the field.
ClassSBB Ee 922
The Ee 922 is a modern electric shunting locomotive of the SBB. Its three-digit number shows how the Swiss classification system has changed – here's how to read both.
Where you will find Schweizerische Bundesbahnen (SBB)
Spotting locations where you will regularly come across vehicles from this organisation – with viewpoints, the best light and coordinates.
Erstfeld
For more than a century, Erstfeld was the place where heavy trains picked up banking locomotives before tackling the Gotthard north ramp. Since the base tunnel started running beneath the mountain, the place has changed – it has stayed interesting, but for different reasons.
Freight hubBellinzona
Bellinzona is the point where all the Gotthard traffic fans out again on the southern side: towards Locarno, towards the Ceneri and Lugano, and on into Italy. Add to that a workshop tradition, Mediterranean light and three castles above the tracks.
Border stationBasel SBB
No other station in Europe brings three national rail systems together as tightly as Basel. Swiss long-distance trains, its own French station section, and just a few tram minutes away a station on Swiss soil operated by DB – plus the most important north-south freight hub on the Alpine route.
Mountain lineGotthard North Ramp at Wassen
Between Gurtnellen and Göschenen, the Gotthard mountain line spirals up the hillside through loop tunnels, passing Wassen at three different heights along the way. Since the base tunnel opened, far fewer trains run here – but the views remain among the best in Switzerland.
More companies
SBB Infrastruktur
SBB Infrastruktur isn't a separate company, but a division of SBB with separate accounts. It maintains most of the Swiss standard-gauge network – but not all of it: BLS, RhB, MGB and SOB have their own tracks, their own rules and their own rolling stock.
GroupSBB Cargo International
SBB Cargo International was founded for a single purpose: through freight trains between northern Europe and Italy. The company is majority-owned by SBB, but not entirely – and despite its name, it doesn't run any traffic within Switzerland.
GroupRhätische Bahn (RhB)
The Rhaetian Railway is one of the few railways in Europe where network, operations and brand sit in a single hand. It combines several originally independent lines, runs on metre gauge with no rack, and operates two completely different electrification systems on the same network.
ManufacturerStadler Rail
Stadler Rail grew from a small workshop in Thurgau into one of Europe's defining vehicle builders. The product names FLIRT, KISS and GTW appear nowhere on the vehicle – yet you can still identify the matching designs from a great distance once you know what to look for.
Related guides from the blog
- Track SBB trains live: train tracking in Switzerland
- Identifying Train Classes: How to Recognise Any Locomotive or Multiple Unit
- Tracking trains live across Europe: a country guide for cross-border travellers
- Reading the UIC number: what the 12 digits on a vehicle reveal
- Planning Sun Position at a Photo Spot: Light Instead of Luck
