Manual and motorized DPC chassis trucks for medium-voltage draw-out vacuum circuit breakers, plus the TJ-1-1400 racking mechanism for 36 / 40.5 kV switchgear.
DPC VCB chassis trucks and TJ-1 racking mechanism models.
Compare seven manual or motorized DPC chassis trucks and the TJ-1-1400 racking mechanism. Open any model to review its technical drawing and source-backed dimensions before specifying it for new switchgear or a replacement project.
Select a VCB chassis truck for your switchgear cabinet.
A replacement chassis must match more than voltage class or cabinet width. Provide the breaker identity, mounting dimensions, travel positions and drive interfaces below so our engineers can compare the installed arrangement with the correct DPC or TJ-1 record.
01 Breaker and switchgear details
Vacuum circuit-breaker model, switchgear type, rated voltage, cabinet width and depth, existing chassis code, and whether the project is a new build, retrofit or replacement.
02 Mounting and rail dimensions
Mounting width or pitch, guide-rail datum, fixing-hole positions, overall envelope and the corresponding measurements from the installed cabinet or approved drawing.
03 Travel and breaker positions
Total rack-in/rack-out travel, disconnected or test position, connected or service position, position indication, locking points and the required operating sequence.
04 Manual or motorized interfaces
Manual or motorized operation, motor rated voltage, local or remote control, auxiliary contacts, secondary plug or terminal interface, door interlock and earthing connection.
05 RFQ quantity and supporting files
Required quantity, clear front and side photographs, nameplate, dimensional or wiring drawings, destination country, requested delivery time and documentation requirements.
VCB chassis and racking configurations
Compare manual, motorized and 36 / 40.5 kV racking options.
Choose the configuration that matches the installed breaker, operating method and switchgear interface. Every model still requires confirmation against the project drawing before it is treated as a replacement or production-ready selection.
01DPC-4A manual range
Manual VCB chassis trucks
Best suited for
New draw-out VCB assemblies or like-for-like chassis replacement
Manual rack-in and rack-out operation using the cabinet operating handle
Projects with confirmed rail, fixing, travel and interlock interfaces
Models and selection data
DPC-4A-550, DPC-4A-650, DPC-4A-800 and DPC-4A-1000
Model-specific drawings for mounting and cabinet-interface comparison
Source-backed dimensions displayed in each product modal
02DPC-4A motorized range
Motorized VCB chassis trucks
Best suited for
Local or remote automatic rack-in and rack-out operation
Retrofit or new switchgear with a defined motor power supply and control circuit
Projects requiring auxiliary contacts, plug or terminal interfaces and interlocks
Models and selection data
DPC-4A-650M, DPC-4A-800M and DPC-4A-1000M
Motorized chassis dimensions and drive information for the selected model
Motor voltage, control logic and wiring details confirmed during quotation
0336 / 40.5 kV switchgear
TJ-1-1400 racking mechanism
Best suited for
Removable circuit breakers and handcarts in the stated 1400 mm switchgear context
Applications requiring the TJ-1-1400 geometry and 610 mm travel reference
Projects with confirmed mounting points, positions and transmission route
Model and selection data
TJ-1-1400 for the stated 36 / 40.5 kV application
Racking-mechanism outline, installation dimensions and travel references
Cabinet, breaker, lock and interlock details confirmed before quotation
Selection note: voltage class, cabinet width or a similar product photograph is not enough to confirm fit. Use the exact breaker, cabinet and interface drawing for replacement work.
RFQ checklist for engineers and buyers
Specify the right data for a VCB chassis truck quotation.
A complete RFQ lets engineering verify the switchgear interface and lets purchasing compare the same commercial scope. Choose the route below and send the listed project data with your quantity and delivery requirements.
RFQ path 01
New switchgear project
Application
A manual DPC chassis is being specified with a new draw-out vacuum circuit breaker and cabinet.
Send us
Breaker and switchgear type, cabinet width, mounting dimensions, travel, positions, quantity and required delivery date.
Quotation includes
Recommended model, technical drawing, confirmed scope, unit price, lead time and delivery terms.
RFQ path 02
Replacement chassis or retrofit
Application
An existing chassis is damaged, obsolete or being replaced while the breaker and switchgear cabinet remain in service.
Send us
Existing model and nameplate, installed photos, approved drawing, measured rail and fixing dimensions, travel and retained parts.
Quotation includes
Replacement candidate, dimensional comparison, interface notes and the parts included or excluded from supply.
RFQ path 03
Motorized or 40.5 kV racking
Application
A motorized DPC chassis or TJ-1-1400 racking mechanism is required for a defined breaker and switchgear arrangement.
Send us
Motor voltage and control method, or TJ-1 cabinet and stroke data, plus positions, interlocks, wiring, quantity and drawings.
Quotation includes
Selected configuration, drive or racking data, electrical and mechanical interface notes, price and lead time.
What to expect in our quotation
A professional quotation should identify the model, drawing and supply scope.
Model and quantity
Exact DPC chassis or TJ-1 racking model, quantity and the breaker or cabinet position it serves.
Included components
Motor drive, auxiliary contacts, guides, linkages, locks, interlocks, plugs or fasteners supplied with the quoted line.
Technical references
Applicable drawing, confirmed dimensions, travel, positions and cabinet-interface data used for model selection.
Commercial terms
Unit price, lead time, delivery basis, payment terms and clearly stated assumptions or exclusions.
Dimension and interface checklist
Verify VCB chassis dimensions and switchgear interfaces before ordering.
Electrical ratings alone do not confirm that a draw-out breaker chassis will fit an existing cabinet. Engineers should verify the model drawing, mounting geometry, racking positions and interlocks; buyers should keep those references attached to the purchase order.
Chassis data
Start with the model drawing.
Use the exact DPC or TJ-1 drawing for overall dimensions, mounting pattern, travel and model-specific references. Do not transfer dimensions between different model rows.
Switchgear data
Measure the installed cabinet.
Confirm cabinet width and depth, guide rails, fixing points, breaker interface, secondary plug, shutter and earthing arrangement against the approved project drawing.
Selection pointWhat to verifyWhy it matters
01
Exact model and cabinet context
Complete DPC or TJ-1 model, breaker model, switchgear type, rated voltage, cabinet width and quantity.
A similar voltage class or cabinet width does not guarantee the same mounting, travel or interlock arrangement.
02
Mounting and rail dimensions
Mounting width or pitch, guide-rail datum, wheel track, fixing-hole positions, cabinet depth and overall chassis envelope.
These dimensions determine whether the chassis can enter, locate and remain aligned in the breaker compartment.
03
Travel and breaker positions
Total rack-in/rack-out travel, disconnected or test position, connected or service position, end stops and position indication.
The primary and secondary interfaces, shutters and interlocks must operate at the intended points in the travel sequence.
04
Mechanical switchgear interfaces
Breaker fixing, shutter drive, earthing connection, locks, door interlock, operating handle and any retained guide or linkage parts.
A dimensional match can still fail if the mating mechanisms or operating sequence are different.
05
Motor and control interfaces
For motorized chassis: motor rated voltage, local or remote command, auxiliary contacts, plug or terminal assignment and emergency manual operation.
The motor supply, direction, controls and interlocks must match the switchgear control circuit and required operation.
06
Purchase and document requirements
Quantity, delivery destination, required date, dimensional and wiring drawings, inspection records, language and file format.
A clear supply and document scope prevents missing accessories, unpriced requirements and approval delays.
Related MV circuit-breaker components
Browse more medium-voltage circuit-breaker components.
Use the parent category when your project also requires operating mechanisms, closing or trip coils, auxiliary switches, contacts or other parts for medium-voltage circuit breakers. Keeping these items in one RFQ helps purchasing align models, quantities and delivery requirements.
This product categoryVCB Chassis Trucks & Racking MechanismsDPC and TJ-1 models with drawings, dimensions, interface checklists and RFQ guidance.
Explore related productsCircuit Breaker ComponentsOperating mechanisms, coils, auxiliary switches, contacts and other replacement components organized by function.Browse all Circuit Breaker Components ↗
VCB chassis truck FAQ
VCB chassis truck and racking mechanism FAQs.
Answers for switchgear engineers and professional buyers comparing DPC manual or motorized chassis trucks, replacement interfaces and the TJ-1-1400 racking mechanism.
01What is a VCB chassis truck, and what does it do in draw-out switchgear?
A VCB chassis truck supports the vacuum circuit breaker and moves it through the switchgear compartment between the defined disconnected or test and connected or service positions. It must coordinate with the cabinet rails, fixing points, secondary plug, shutters, earthing connection, position indication and mechanical or electrical interlocks.
02How do I choose the correct DPC chassis truck for a replacement?
Start with the complete existing chassis and breaker model, then compare the mounting width, rail datum, fixing-hole pattern, cabinet depth, overall dimensions, racking travel and position sequence. Voltage class, cabinet width or a similar product photograph alone is not enough to confirm interchangeability.
03What is the difference between a manual and motorized VCB chassis truck?
A manual chassis is moved with the switchgear operating handle. A motorized chassis uses an electric drive for local or remote rack-in and rack-out operation. For a motorized model, specify the motor rated voltage, command method, auxiliary contacts, plug or terminal interface, interlocks and wiring; state separately if emergency manual operation is required.
04Which VCB chassis dimensions are required for a quotation?
Provide mounting width or pitch, guide-rail and wheel datum, fixing-hole positions, overall width and height, cabinet depth, required travel, test and service positions, operating-axis location and critical clearances. An approved drawing or measured sketch is more reliable than dimensions estimated from a photograph.
05Are DPC-4A-650 and DPC-4A-800 chassis trucks interchangeable?
Do not assume they are interchangeable. The two models appear on a shared source drawing, but each has its own dimensional row. Select the model that matches the installed breaker and cabinet, and use only the dimensions assigned to that model.
06Which racking positions and interlocks should be confirmed?
Confirm the disconnected or test and connected or service positions, total travel, end stops and position indication. Also verify that the breaker, door, racking access, secondary plug, shutters and earthing arrangement follow the intended permissive sequence. The approved switchgear and breaker instructions govern safe operation.
07What is the TJ-1-1400 racking mechanism used for?
TJ-1-1400 is a racking mechanism for the stated 36 / 40.5 kV and 1400 mm switchgear context, with a 610 mm travel reference shown in the source data. Confirm the breaker, cabinet, mounting points, transmission route, positions, locks and interlocks before ordering.
08What information should a professional VCB chassis RFQ include?
Include the required model or application, breaker and switchgear references, nameplate and installed photos, interface dimensions, travel and positions, manual or motorized operation, motor voltage and wiring where applicable, quantity, destination, delivery target and required technical or inspection documents.
