Key takeaways
- Classes 150 and 151 are four-axle Škoda express locomotives for the Czech DC network.
- The 151 is the faster sister – developed from the 150 and set up for higher speeds.
- Czech Republic has numbered purely numerically since 1988: the first digit tells you the vehicle group.
- These locomotives were historically called E 499.2 – you'll still often come across the old letter-based system on older vehicles.
- As a single-system locomotive it can't go everywhere: the Czech network is split into DC and AC sections.
Contents
Fact file
| Vehicle type | Electric locomotive for fast passenger services |
|---|---|
| Manufacturer | Škoda (Plzeň, Czech Republic) |
| Wheel arrangement | Bo'Bo' – four axles in two bogies |
| Electrification system | 3 kV DC (single-system locomotive) |
| Historical designation | Originally carried as E 499.2 in the old ČSD system |
| Relationship between 150 and 151 | The 151 is the higher-speed variant developed from the 150 |
| Typical use | Express and long-distance trains on the Czech DC network |
Identifying features
Is this really the class in front of you?
- Four axles in two bogies – not a six-axle design
- Angular express-locomotive front typical of Škoda, with a distinctive window arrangement
- Class number begins with 150 or 151 – three digits, purely numeric
- Used in front of locomotive-hauled passenger trains, not multiple units
- Only runs under 3 kV DC overhead line – no changeover onto the AC network
Updated: August 2026 – A four-axle electric locomotive with an angular front in front of a classic rake of coaches, a three-digit number on the front starting with 15: that’s the typical encounter with ČD Classes 150 and 151. This page shows you how to recognise them, how the Czech numbering system works, and why their operating area is limited by the electrification systems.
Spotted an express locomotive? Note the number
Only the vehicle number tells you whether it's a 150 or 151 – log it together with the place and date.
What are Classes 150 and 151?
Classes 150 and 151 are four-axle electric locomotives for fast passenger services, built by Škoda in Plzeň. They run under 3 kV DC and were procured for high-quality locomotive-hauled trains. The wheel arrangement is Bo’Bo’: two bogies with two driven axles each.
The relationship between the two classes is quickly explained: the 151 was developed from the 150 and set up for higher speeds. Both therefore belong to the same design lineage – a principle common across Europe, where an existing type is carried forward through adaptations to new requirements rather than being replaced entirely.
Historically, these machines carried the designation E 499.2. The old ČSD system still worked with letters: E for electric, T for diesel, M for railcar. Anyone who looks into Czech vehicles will run into both systems – in literature, on heritage vehicles, and in forums.
Decoding the Czech class system
Since 1988, ČSD and ČD have numbered purely numerically. Unlike the Polish system with its meaningful letters, this one requires a bit of prior knowledge – but once learned, the scheme is very consistent.
| First digit | Vehicle group | Practical examples |
|---|---|---|
| 1xx | Electric locomotives for 3 kV DC | 150, 151, 162, 163 |
| 2xx | Electric locomotives for 25 kV AC | 242, 243 |
| 3xx | Multi-system electric locomotives | 362, 363, 371, 380 |
| 4xx / 6xx | Electric multiple units | 440, 471, 680 |
| 7xx | Diesel locomotives | 714, 740, 742, 750 |
| 8xx | Diesel railcars | 810, 814, 841 |
That means a three-digit number alone tells you immediately what kind of vehicle you’re dealing with – without even knowing the specific class. That’s a real advantage over systems where numbers are simply assigned in sequence.
Alongside the class number, every vehicle carries the European standard twelve-digit vehicle number. The country code for the Czech Republic within it is 54. How this number is structured and how to work out its check digit is explained in the article on reading the UIC number.
How to identify the locomotive in the field
Count the axles
Four axles in two bogies. That immediately rules out six-axle machines – a feature you can spot even from a distance.
Assess the train behind it
A classic passenger train made up of individual coaches fits the deployment profile. Express locomotives are the exception in front of freight trains.
Read the first digit
A three-digit number starting with 1 means: DC locomotive. That already settles the vehicle group.
Note the full number
Whether it's the 150 or 151 is only decided by the complete number. Photograph it too – the distinction is hardly possible to make afterwards.
Practical tip: think about the overhead line
In the Czech Republic, the section of line already tells you a lot. Different locomotives run in the DC area than in the AC area, and at the system boundaries vehicles change or multi-system locomotives take over. If you know which area you're in, you halve the number of classes that could be in front of you.
Document locomotive-hauled trains while they still exist
Number, train type and date in one entry – so you capture what's changing right now.
What this means for operations: the split electrification system
The Czech Republic is a special case when it comes to traction power. The network is historically split into two areas: 3 kV DC and 25 kV AC at 50 Hz. A single-system locomotive like the 150 can therefore only cover part of the country. The same applies in freight traffic – ČD Cargo also keeps separate locomotive classes ready for both halves of the network.
This split explains a great deal about the Czech vehicle landscape:
- There are dedicated classes for each system – DC locomotives such as the ČD 162 / 163, AC locomotives such as the ČD 242 / 243.
- There are unusually many dual-system locomotives, such as the ČD 362 / 363, because continuous runs would otherwise hardly be possible.
- Locomotive-change stations appear at the system boundaries – often especially rewarding spots for spotters, because several classes come together in one place.
For readers thinking in German terms, there’s a third value worth adding: Germany runs on 15 kV AC at 16.7 Hz. That’s compatible with neither Czech system. Cross-border trains therefore use multi-system vehicles or change locomotive. Consequently, you won’t see a 150 or 151 in scheduled service on the German network.
Photo tips for classic express locomotives
| Situation | Chance | What to watch for |
|---|---|---|
| Large station with long-distance traffic | high | Dwell times at the platform allow for calm composition |
| Locomotive-change station at a system boundary | high | Several classes in one place, often longer stops |
| Line in the DC area | medium | Only from publicly accessible locations |
| AC area | very low | A single-system locomotive can’t run there |
| Depots and stabling sidings | none | Operational railway land – no access, no shot |
Deployments shift over time
Which class runs which working changes with timetable years, vehicle availability and the advance of multiple units in long-distance traffic. Use current information and community sightings rather than older diagram overviews.
How to bring viewpoint, light and shutter speed together for locomotive shots is covered in the guide on taking good photos of trains. For a methodical approach to unfamiliar vehicles, the guide to identifying classes helps.
Common mix-ups
It points to the 150 or 151 if …
- the locomotive has four axles in two bogies
- a classic passenger train made up of individual coaches is attached
- the number is three digits and starts with 15
- you're in the DC area of the network
Look more closely if …
- you couldn't read the full number – 150 and 151 are closely related
- a special livery changes the usual appearance
- you only see the locomotive against the light or from behind
It's not a 150 or 151 if …
- you count six axles
- the number starts with 3 – then it's a multi-system locomotive
- the number starts with 7 or 8 – then you're looking at a diesel locomotive or diesel railcar
Verdict
Classes 150 and 151 are a good entry point into the Czech vehicle world: clear design, clear task, clear numbering logic. Four axles and a three-digit number starting with 1 put you in the right group, and the full number decides between the two sisters. And anyone who also knows which electrification system they’re currently standing in rules out half the country’s vehicle list before even looking.
In short
Four-axle Škoda electric locomotive, three-digit number with a leading 1, classic passenger train behind it: that's the 150 family. Only the full vehicle number reveals the exact class.
Czech sightings in one place
Class, number, place and date logged together – so your archive grows across borders.
Summary
- Classes 150 and 151 belong to the classic Škoda express locomotives of the Czech DC network.
- You can recognise them by their four axles, angular front and three-digit class number.
- The Czech numbering system is built purely on numbers and can be decoded from the first digit.
- Exactly where these locomotives are used changes with timetable years and the advance of multiple units in long-distance traffic.
Frequently asked questions
What are ČD Classes 150 and 151?
They're four-axle electric locomotives for fast passenger services, built by Škoda in Plzeň. They run under 3 kV DC and were procured for high-quality locomotive-hauled passenger trains. The 151 was developed from the 150 and set up for higher speeds.
How does the Czech class system work?
Since 1988, ČSD and ČD have used purely numeric class numbers. The first digit indicates the vehicle group: 1 stands for DC locomotives, 3 for multi-system locomotives, 4 and 6 for electric multiple units, 7 for diesel locomotives, 8 for diesel railcars. Unlike in Poland, there are no letters in the code.
What does the old designation E 499.2 mean?
Before 1988, ČSD used a system with letters: E for electric, T for diesel, M for railcar. E 499.2 was the historical designation of today's Class 150. You'll still come across such old designations on heritage vehicles and in technical literature today.
How do I tell the 150 and 151 apart?
By the class number on the vehicle – visually they're closely related, since the 151 was developed from the 150. For a reliable sighting, read the full number off the front and side. The difference lies in the design for higher speed, not in a silhouette you could recognise from 200 metres away.
Why can't this locomotive run everywhere in the Czech Republic?
Because the Czech network is historically split into two electrification systems: 3 kV DC and 25 kV AC at 50 Hz. A single-system locomotive like the 150 only works in the DC area. Continuous runs across the system boundary need multi-system locomotives – which is why the Czech Republic has so many dual-system vehicles.
Can you also see these locomotives in Germany?
Single-system DC locomotives can't be used in scheduled service in Germany, because 15 kV AC at 16.7 Hz is used here. Cross-border trains between the Czech Republic and Germany are therefore run with multi-system vehicles or change locomotive. To see the 150 and 151, you need to head into the Czech DC network.
How do I identify exactly which locomotive is in front of me?
By the full vehicle number on the front and side. Every vehicle also carries the twelve-digit European vehicle number; the country code for the Czech Republic within it is 54. Together, that gives a unique identity you can still trace years later.
Are these locomotives worth photographing?
Yes – especially because locomotive-hauled passenger trains are becoming rarer across Europe. Wherever an electric locomotive still hauls a classic rake of coaches today, you get a subject that won't be a given in a few years' time. How long each deployment concept lasts is decided afresh with every timetable change.
Log your sighting of the CD 150 / 151
Date, location and vehicle number logged in seconds – and visible to the community.
Related classes
CD 162 / 163
ČD Classes 162 and 163 are four-axle Škoda electric locomotives for 3 kV DC, popularly nicknamed "Peršing". Here's how to identify them and tell them apart from the 300-series.
Electric locoČD Class 362 / 363
Classes 362 and 363 are Škoda dual-system locomotives for the mixed Czech electrification network. A bogie swap explains why there are two class numbers.
Electric locoCD 242 / 243
Classes 242 and 243 are four-axle Škoda AC locomotives from southern Czechia. Where the nickname Laminátka comes from, and how to identify them reliably.
Electric locoČD Class 380 (Škoda 109E)
Class 380 is the Czech Republic's modern multi-system locomotive: 20 machines, 200 km/h and three electrification systems. How to identify the Škoda 109E confidently in the field.
Electric locoRegioJet 162 WB (Skoda)
RegioJet runs Škoda DC Class 162 locomotives in a striking yellow livery. Here's how to identify them and what sets the 162 apart from the near-identical 163.
Electric locoCD 193 (Siemens Vectron)
The ČD Class 193 is a Siemens Vectron – the same platform that's just as common in Germany. Here's how to recognise it and how to read its pantographs.
Who is behind it
Groups, brands, manufacturers and operators – who owns whom and how to recognise them out in the field.
Where to see the CD 150 / 151
Specific viewpoints with lighting times, coordinates and an honest verdict on whether the trip is worth it.
Related guides from the blog
