Key takeaways
- RABe decoded: R = high-speed, A = 1st class, B = 2nd class, e = electric. The 524 names the series.
- By design, the 524 is a low-floor articulated multiple unit from the FLIRT family – recognisable by the short intermediate modules.
- In cross-border traffic it's worth checking the country code 85: it tells you where the vehicle is registered.
- Design alone isn't enough, because several Swiss FLIRT series look nearly identical – the series number decides.
- Lines and responsibilities change; every deployment note is a snapshot.
Contents
Fact file
| Vehicle type | Electric multiple unit for regional services |
|---|---|
| Vehicle family | Stadler FLIRT (low-floor articulated multiple unit) |
| Designation | RABe = high-speed multiple unit with 1st and 2nd class, electric traction |
| Series | 524 |
| Traction | Electric, pantograph on the roof |
| UIC country code | 85 (Switzerland) |
| Typical use | Regional services, partly cross-border; the allocation changes with the timetable and diagrams |
Identifying features
Is this really the class in front of you?
- A single-deck articulated multiple unit: long end modules, short intermediate modules over shared bogies
- A low, step-free entry area in the middle of the vehicle
- A rounded front with a large, low-set windscreen
- Vehicle number contains the series 524, preceded by the country code 85
- A cab at both ends of the train – no locomotive coupled ahead
- No exhaust system, no radiator grilles: purely electric traction
Updated: August 2026 – Low-floor, articulated design, pantograph on the roof: at first glance, the SBB RABe 524 is a FLIRT like many others in Switzerland. That’s precisely the challenge. This page explains what the Swiss designation actually tells you, how to reliably identify the series, and what cross-border traffic has to do with it.
Note the series, not just the family
"Saw a FLIRT" isn't a sighting. With a number and a date it becomes an entry that's still worth something in five years.
What is the SBB RABe 524?
The SBB RABe 524 is an electric low-floor multiple unit for regional services, built in the articulated design of the FLIRT family from Stadler Rail. Its defining features are the step-free entry in the middle of the vehicle, the short intermediate modules, and the cabs at both ends of the train.
This design answers a very specific operational requirement: many stops, short dwell times, fast acceleration. A multiple unit distributes traction across the whole unit instead of concentrating it in a locomotive – which is why it gets up to speed faster than a loco-hauled train of the same weight.
The low-floor area isn’t a comfort detail here, but part of the same calculation. Anyone who can board and alight at a platform without steps noticeably shortens the dwell time. On a line with twenty stops, a few seconds per station add up to minutes that decide connections or delays in a clockface timetable. For identification that means: a low, step-free entry is never a coincidence – it already tells you which type of service the vehicle belongs to.
RABe 524: the designation letter by letter
The Swiss system is descriptive rather than arbitrary. Once you understand it, you can read off any vehicle what you’re dealing with.
| Letter | Meaning | What it tells you |
|---|---|---|
| R | high-speed vehicle | Designed beyond purely local traffic |
| A | 1st class on board | Separate area, usually with different seating |
| B | 2nd class on board | The main part of the passenger compartment |
| e | electric traction | Pantograph on the roof, no exhaust system |
| 524 | series number | Distinguishes the series from identically built trains |
Two rules are worth remembering. First: a lower-case m would stand for a combustion engine – that’s how the designation of a diesel vehicle such as the SBB Bm 2/2 arises. Second: if the lower-case letter is missing entirely, the vehicle has no traction of its own. In Switzerland that’s the decisive argument for spotting driving trailers, such as the SBB IC2000 driving trailer.
Older vehicles carry a fraction instead of the series number – the numerator is the number of powered axles, the denominator the total axle count. Roman numerals afterwards mark successive production batches. Modern multiple units like the 524 instead carry the three-digit series number.
Identifying it in four steps
Count the levels
One passenger level with a low entry? Then the train isn't a double-decker, and the field of candidates shrinks significantly.
Take in the module pattern
Long end modules, short intermediate modules over shared bogies – the typical FLIRT pattern.
Check the roof
Pantograph present, no exhaust system: electric traction confirmed, matching the lower-case "e" in the designation.
Read the number
Only the vehicle number on the side wall makes the identification unambiguous. It contains the series 524 and the country code 85.
For how to tell FLIRT, Talent and Desiro apart in general, see the comparison telling FLIRT, Talent and Desiro apart.
Cross-border traffic: why the country code helps
Switzerland is connected to neighbouring networks in every direction, and at hubs near the border, vehicles from several railways regularly stand side by side. That’s exactly where the twelve-digit European vehicle number becomes a practical tool: the leading digits name the country where the vehicle is registered – 85 stands for Switzerland.
Vehicles that scheduled-cross a system boundary need extra equipment: the neighbouring country’s train protection systems, and possibly several traction power systems. This is barely visible from outside, so drawing conclusions about equipment from appearance is not advisable. The article on the UIC number and its check digit shows how the number is structured in detail.
In international long-distance traffic, this role in Switzerland is filled among others by the SBB RABe 503 (ETR 610) – a completely different vehicle, but with the same basic requirement.
Where you’ll find the RABe 524
| Location | Chance of a sighting | Why |
|---|---|---|
| Regional hubs with a dense frequency | high | Many stops and reversals, good sightlines from the platform |
| Stations near the border | medium to high | Cross-border regional services converge there |
| Pure high-speed lines | low | Different vehicle category |
| Pure freight lines | very low | No scheduled passenger service |
| Depots and stabling groups | irrelevant | Operational railway land, not accessible |
Deployment notes age quickly
Line allocations, colour schemes and responsibilities shift with contract awards and timetable changes. Treat every piece of information as accurate only for the day you observed it – and check the current situation before a long trip.
What's actually running today?
Community sightings show you the current situation instead of forcing you to rely on outdated overviews.
Photography and documentation
A FLIRT is photographically unspectacular: smooth surfaces, a rounded front, a uniform side wall. So the shot lives on positioning and light, not on the subject itself. A three-quarter angle of about 30 to 45 degrees shows front and side at once; flat light in the morning or late afternoon brings out panel lines and joints, while midday light flattens the surfaces.
For documentation: a second, tighter shot of the markings is just as important as the overall view. Without the number, a sighting stays incomplete. How to report a sighting so others can make use of it is covered in the guide to reporting sightings.
Safety isn't a matter of judgement
Platforms and public footpaths are accessible. Tracks, operational railway land, stabling groups and workshops are not – not even briefly, and not even for a better shot.
Common mix-ups
It points to the RABe 524 if …
- the train is single-deck and low-floor
- short intermediate modules sit over shared bogies
- a pantograph is present and no exhaust system is visible
- the vehicle number contains the series 524
Look more closely if …
- the design fits, but the series number isn't visible
- several units are running coupled – the rear one could be a different series
- the train is in cross-border traffic and you haven't checked the country code
It's not a RABe 524 if …
- two passenger levels are stacked
- a short power module sits centred between two car halves
- the designation contains an m or carries no lower-case letter at all
Conclusion
The RABe 524 is a modern regional multiple unit from SBB whose designation reveals more than most European class codes: classes, traction type and speed rating are spelled out directly in the name. What it doesn’t reveal is the series – that’s what the three-digit number is for. Reading both together lets you identify Swiss multiple units reliably, even when half a dozen identically built trains stand side by side.
In short
Read the designation, check the design, note the number: in that order, the RABe 524 is reliably identified in under a minute – colour scheme and line allocation are only clues.
Collect Swiss multiple units systematically
Number, location, date and photo in one place – so individual sightings grow into an overview of the whole family.
Summary
- The RABe 524 is an electric low-floor multiple unit from SBB, built in articulated design and set up for regional traffic with closely spaced stops.
- The Swiss designation encodes classes and traction, while the three-digit number identifies the specific series.
- There's no way round the vehicle number for an unambiguous identification.
- Cross-border services make the country code in the UIC number a useful additional feature.
Frequently asked questions
What does the designation RABe 524 mean?
The capital letters describe what the train carries: R for high-speed, A for 1st class, B for 2nd class. The lower-case e stands for electric traction. The 524 is the series number. Taken together: an electric multiple unit with both classes.
How do I identify the RABe 524 with confidence?
First by the design: single-deck, low-floor, articulated with short intermediate modules. That gets you to the FLIRT family. You then read the specific series off the vehicle number on the side wall, which contains the series 524. Colour schemes are no proof, because they can change.
What does multi-system capable mean?
A multi-system vehicle can run under several traction power systems without the train needing to be swapped. This matters in cross-border traffic, because European networks use different voltages and frequencies. Whether a specific unit is fitted this way depends on the procurement batch – and is barely visible from outside.
Why does the number 85 in the vehicle number matter?
85 is Switzerland's UIC country code. At stations near a border, vehicles from several countries stand side by side; the country code places them in seconds. It's part of the twelve-digit European vehicle number, which also contains the type, serial number and a check digit.
Is the RABe 524 a railcar or a multiple unit?
A multiple unit. The difference: a railcar is a single powered vehicle, while a multiple unit is a permanently coupled set of several modules with shared traction and cabs at both ends. That's why nothing needs to be moved to the other end at the terminus.
How many RABe 524 units are there?
Reliable unit counts change through refits, renumbering and withdrawals, and can only really be read off the current fleet. A more reliable approach is the reverse: collecting the numbers you've sighted yourself and reconstructing the range of the series from that.
Why do several Swiss multiple-unit series look the same?
Because they come from the same vehicle family and use the same basic modules. The differences lie in equipment details such as train protection, electrification systems or interior layout – things barely visible from outside. That's why the series number matters so much in Switzerland.
Where am I allowed to stand for photography?
Only in publicly accessible areas such as platforms and public footpaths. Track areas, operational railway land, stabling groups and depots are off limits – regardless of how good the shot would be. Always judge the specific situation on site, including any signage.
Log your sighting of the SBB Class RABe 524
Date, location and vehicle number logged in seconds – and visible to the community.
Related classes
SBB Class RABe 521 (FLIRT)
The RABe 521 is an electric low-floor multiple unit from SBB's FLIRT family. This page explains the Swiss designation and shows how to identify it beyond doubt.
EMUSBB Class RABe 523 (FLIRT)
The RABe 523 is a Swiss FLIRT series for regional traffic. Because several series share the same design, the series number decides – here's how to read it correctly.
High-speedSBB RABe 503 (ETR 610)
The RABe 503 is SBB's multi-system tilting train for services towards Italy. Here's how to read the Swiss designation and tell it apart from the ICN.
EMUBLS RABe 515 (MUTZ)
The RABe 515 'MUTZ' is BLS's double-deck multiple unit from the Stadler KISS family. Here's how to read the Swiss designation and recognise it on the platform.
EMUBLS RABe 525 (Nina)
The RABe 525 'Nina' is BLS's low-floor local-service multiple unit. Here's how to read its Swiss designation and recognise it with confidence on the platform.
EMUBLS RABe 535 (Lötschberger)
The RABe 535 'Lötschberger' is BLS's single-deck FLIRT multiple unit for RegioExpress services. Here's how to recognise it confidently and read its designation.
Who is behind it
Groups, brands, manufacturers and operators – who owns whom and how to recognise them out in the field.
Stadler 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.
State railwaySchweizerische Bundesbahnen (SBB)
SBB doesn't label its vehicles with a class number but with a combination of letters that codes speed, coach class and type of traction. Anyone who can read Re, RABe and Ee identifies a Swiss vehicle faster than any database lookup.
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