Product information at 07/11/2026, 12:09
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306.12 €incl. VAT | incl. Shipping Cost
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Are you looking for a powerful diesel locomotive with authentic sound for your H0 model railroad? The Roco 7310143 T 669.0503 diesel locomotive from a Czechoslovakian industrial railroad brings a distinctive heavy-duty switching locomotive to your layout. With its freestanding handrails—partly made of metal—digital lighting, and integrated sound, this model is an interesting addition for collectors and model railroad enthusiasts who prefer historic industrial locomotives and freight trains.
The locomotives of the T 669 series, which were later designated as the 770 series, are also known by their nickname “Hummel.” This name derives, on the one hand, from the Russian series designation ЧМЭ3, which sounds similar to the Czech word “Čmelák” for bumblebee. On the other hand, the humming sound it makes when starting up is reminiscent of the insect’s buzz.
With an output of 1,400 PS, this locomotive series proved its worth in both light and heavy shunting service. The Roco model captures this characteristic area of operation and is particularly well-suited for depicting freight trains and shunting maneuvers on a digitally controlled H0 layout.
The Roco 7310143 represents the T 669.0503 diesel locomotive of a Czechoslovakian industrial railway. The model is intended for eras IV through VI, making it an interesting addition for collectors who wish to depict different periods of railway history on their layout.
Its design as a factory locomotive sets this model apart from classic mainline locomotives. The T 669.0503 can be used in a variety of ways, particularly in freight transport and yard operations.
The specific locomotive number and its association with a Czechoslovakian industrial railway make this model a special choice for model railroading enthusiasts who wish to expand their collection with a distinctive vehicle from industrial railway operations.
The T 669 series diesel locomotives, later designated as the 770 series, became known for their distinctive sound and their characteristic nickname.
The name “Hummel” has two main origins. On the one hand, the Russian class designation ЧМЭ3 sounds similar to the Czech word “Čmelák,” which means bumblebee. On the other hand, the humming sound the locomotives make when starting up is compared to the sound of a bumblebee.
With a power output of 1,400 PS, this locomotive series proved its worth in both light and heavy shunting operations. This performance makes it particularly appealing to model railroaders who wish to depict shunting operations and service in front of freight trains.
A specifically highlighted feature of the Roco 7310143 is its suitability for use in front of freight trains.
Its classification as a factory railway locomotive and the historical scope of operation of the T 669 series are particularly well-suited to model railroad layouts featuring freight traffic and shunting operations. The locomotive can be used as a striking traction vehicle within an industrial setting.
Since it is classified for Epochs IV through VI, the model offers an interesting opportunity to depict different periods of railroad operation.
The Roco diesel locomotive features freestanding handrails, some of which are made of metal.
These fine details complement the exterior design and give the model a three-dimensional, nuanced appearance. Especially on a distinctive diesel locomotive, such add-on parts contribute to a convincing overall impression.
The handrails, which are partially made of metal, are a special feature for model railroading enthusiasts who value meticulous attention to detail.
The Roco 7310143 is equipped with a digital decoder and sound. This allows the diesel locomotive to be operated on a compatible H0 digital DC layout with its intended sound functions.
Especially for a locomotive series known for its distinctive hum when starting up, the sound features are an interesting complement to the model’s exterior design.
The integrated PluX22 digital decoder forms the basis for digital control and the use of the specified lighting functions. This allows the locomotive to be integrated into a varied model railroad operation.
In digital operation, the model offers several switchable lighting functions. These include the shunting light, the headlight and tail light, and the cab lighting.
These features allow you to adapt the lighting to different operating situations. The shunting light is particularly useful for depicting shunting maneuvers, while the cab lighting complements the locomotive’s lighting system.
The combination of sound and multiple lighting functions makes the Roco 7310143 a versatile choice for digitally controlled model railroad layouts.
The diesel locomotive features a direction-dependent three-light headlight and two tail lights.
The headlight is implemented with LEDs. When the direction of travel changes, the lighting display adjusts accordingly.
Together with the switchable shunting light and the cab lighting, the model offers several options for adjusting the lighting in digital operation to the respective operating situation.
The Roco 7310143 features six powered axles and a flywheel. Additionally, one axle is equipped with traction tires.
This technical configuration is one of the locomotive’s key features and complements its design for digital model railroad operation.
The specified minimum radius is 358 mm. This value should be taken into account when planning your own H0 model railroad layout.
The model is equipped with a PluX22 digital decoder and features a PluX22 electrical interface.
The decoder enables digital control of the locomotive as well as the use of the specified sound and lighting functions. These include direction-dependent headlights and taillights, shunting lights, and cab lighting.
This makes the Roco 7310143 particularly appealing to model railroaders looking for a digitally equipped diesel locomotive for freight transport and shunting operations.
The Roco T 669.0503 features a NEM 362-compliant coupler housing with close-coupling kinematics.
This allows for the use of compatible model railroad couplers. The standardized coupler mount provides a basis for connecting to appropriately equipped H0 cars.
When planning a freight train, it is advisable to ensure that the couplers are compatible with the cars being used.
The Roco 7310143 is designed for model railroaders who collect historical and modern industrial railway locomotives and wish to depict freight traffic on their layout.
Its association with the Czechoslovakian industrial railways and its classification for eras IV through VI offer versatile possibilities for creating a variety of operational scenarios.
The freestanding handrails—some of which are made of metal—along with the digital sound and switchable lighting functions make this model an interesting addition for collectors and discerning model railroaders.
With the Roco 7310143 H0 diesel locomotive T 669.0503 from a Czechoslovakian industrial railway, you can expand your model railroad collection with a distinctive locomotive from Eras IV through VI.
The freestanding handrails—partly made of metal—six powered axles, and the flywheel round out the technical features. The integrated digital decoder with sound, as well as the switchable shunting light, headlight, tail light, and cab lighting, offer numerous possibilities for digital operation.
With a length over the buffers of 198 mm and a specified minimum curve radius of 358 mm, you can incorporate this model into the planning of your H0 layout.
Bring the distinctive “Hummel” to your H0 model railroad! Discover the Roco 7310143 in our model railroad shop and enrich your collection with a digitally equipped industrial locomotive featuring sound and versatile lighting functions. An attractive choice for enthusiasts of freight trains, yard operations, and Czechoslovakian diesel locomotives!
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