What Affects Switchgear Price for an Industrial Plant?
When planning electrical distribution for a factory, the switchgear price for industrial plant projects is usually one of the key items in the electrical equipment budget.
However, there is no standard price that applies to every industrial plant. The final cost depends on the electrical capacity, incoming and outgoing circuits, circuit breaker selection, busbar design, enclosure requirements, protection functions, and applicable standards.
For this reason, comparing switchgear only by the number of cabinets or the total quotation can be misleading.
A better approach is to first understand what determines the configuration and then compare quotations based on the same technical requirements.
Main Factors That Affect Industrial Switchgear Cost
1. Electrical Capacity
The capacity of the industrial power distribution system is an important starting point.
A small factory with a limited electrical load will normally require a different LV switchgear configuration from a large manufacturing facility.
The transformer capacity, expected load, incoming current, and distribution arrangement all influence the required switchgear ratings.
2. Rated Current and Short-Circuit Capacity
The main busbar and circuit breakers need to be selected according to the electrical characteristics of the project.
Higher rated current may require larger busbars and corresponding connection components. The short-circuit withstand requirement can also affect the cabinet structure, busbar supports, and protective devices.
These technical requirements can therefore have a direct impact on the final switchgear quotation.
3. Circuit Breaker Configuration
The number and type of circuit breakers are another major cost factor.
An industrial LV switchboard may include ACBs for incoming or bus-coupler applications and MCCBs for outgoing feeders.
The frame size, breaking capacity, trip unit, accessories, and communication functions of each breaker can all affect the overall equipment cost.
4. Busbar Design
The busbar system needs to match the rated current and short-circuit requirements of the switchboard.
Copper busbars are commonly used in industrial LV switchgear. However, the actual design also depends on the current rating, arrangement, insulation, support structure, and connection method.
A quotation should therefore specify the main busbar configuration instead of simply stating that the cabinet has a “copper busbar.”
5. Cabinet Structure and Internal Separation
The enclosure design is another factor that affects industrial switchgear cost.
Different applications may require different levels of internal separation, access arrangements, cable entry methods, and protection against external influences.
For projects requiring higher internal segregation or more complex maintenance arrangements, additional materials and assembly work may be required.
6. Standards and Testing
Industrial switchgear is normally manufactured and tested according to applicable standards.
IEC 61439 is widely used for low-voltage switchgear and controlgear assemblies. Depending on the project, customers may also require specific routine testing, design verification documents, inspection records, or other technical documentation.
Therefore, the testing and documentation scope should be included when comparing the switchgear price for industrial plant projects.
Vietnam Case: 3,200 kVA Industrial Power Distribution Project
A recent project in Thai Nguyen Province, Vietnam provides a practical example.
The project involved a 3,200 kVA power distribution system for an industrial plant. The electrical system was intended for the factory’s own power consumption and internal distribution.
Haocheng Electric’s scope in this project was the low-voltage switchgear.
The company was responsible for supplying the LV switchgear within the overall electrical distribution system. Other equipment and parts of the project were outside our supply scope.
This distinction is important when discussing project cost. The price of the LV switchgear should not be confused with the total investment in the plant’s electrical system.
Why the Project Capacity Matters
A 3,200 kVA industrial power system requires a properly configured low-voltage distribution system.
The switchgear needs to be matched with the project’s electrical design, including the incoming power arrangement and distribution to different factory loads.
For the equipment supplier, the key task is therefore not simply to provide a standard cabinet. The LV switchgear needs to be configured according to the customer’s actual electrical requirements.
This is also why the same number of LV cabinets can have very different prices between two industrial projects.
What Was Considered in the Vietnam Project?
For the 3,200 kVA project, the low-voltage switchgear was considered as part of the factory’s internal power distribution system.
The configuration needed to take into account factors such as:
- Incoming power requirements
- Main busbar capacity
- Outgoing feeder requirements
- Circuit breaker selection
- Short-circuit protection
- Cabinet arrangement
- Cable connection requirements
- Applicable technical standards
These factors are more meaningful for pricing than cabinet quantity alone.
How to Compare Switchgear Quotations
When comparing suppliers, it is useful to create a technical comparison before looking at the final price.
| Article | Key Point to Compare |
|---|---|
| Rated voltage | LV system voltage |
| Rated current | Incoming and busbar rating |
| Short-circuit rating | Required fault withstand level |
| Incoming breaker | Type, rating and protection functions |
| Outgoing breakers | Quantity, rating and breaking capacity |
| Jeu de barres | Material, rating and configuration |
| Internal separation | Required form of separation |
| Enveloppe (boîtier / carcasse) | Material and IP requirements |
| Metering | Meters, CTs and monitoring functions |
| Standards | IEC 61439 or project requirements |
| Testing | Routine testing and required documentation |
This makes it easier to determine whether two quotations actually cover the same technical scope.
A lower quotation does not necessarily represent a lower-cost equivalent solution if the specifications are different.
How to Get an Accurate Industrial Switchgear Price
For an accurate quotation, a manufacturer normally needs the project’s basic electrical information.
The most useful documents include:
- Single-line diagram (SLD)
- Load list
- Transformer capacity
- Incoming current
- Short-circuit level
- Number of outgoing feeders
- Circuit breaker requirements
- Cabinet arrangement
- Installation conditions
- Applicable standards
If some information is not available yet, the manufacturer can usually begin with the available project data and confirm the remaining requirements during technical clarification.
This is particularly useful during the early budgeting stage of an industrial plant project.
Conclusion
The switchgear price for industrial plant projects is determined by the technical configuration rather than cabinet quantity alone.
Electrical capacity, rated current, short-circuit requirements, circuit breakers, busbars, cabinet structure, testing, and project standards can all affect the final quotation.
The 3,200 kVA industrial power distribution project in Thai Nguyen, Vietnam is a practical example. Haocheng Electric supplied the low-voltage switchgear as one part of the overall electrical system, rather than supplying the entire project.
For industrial plant owners, EPC contractors, and electrical system integrators, comparing switchgear based on a consistent technical scope can provide a much clearer basis for evaluating cost.
If you are planning an industrial plant project, you can send us your single-line diagram, load list, or basic LV switchgear specifications. Our engineering team can review the requirements and provide a project-based configuration and quotation.
