Purchasing LV/MV Switchgear? 8 Questions You Must Ask Your Supplier

8 Questions You Must Ask Your Supplier Purchasing LV/MV Switchgear

Introduction

Purchasing low voltage and medium voltage switchgear, distribution panels, and other assembled electrical equipment can be a headache for many customers in Africa.

Prices vary widely across the market. Some are surprisingly cheap, others are shockingly expensive. You might worry: if I choose the cheap one, will the quality be poor? If I choose the expensive one, am I overpaying?

The truth is, behind every price difference are invisible configuration differences. If you do not know what questions to ask, you can easily be attracted by low prices and fall into traps.

This article summarizes 8 questions you must ask when purchasing switchgear. Each question tells you: why ask it? and what is a good answer? Master these questions, and you will see through the price differences and make a smart choice.

1️⃣ Busbar Material: Copper or Aluminum?

Why ask?
The cost difference between copper and aluminum busbars is huge. Aluminum has only about 60% of the conductivity of copper, meaning higher heat generation and higher energy loss at the same current. Some dishonest suppliers use "copper-clad aluminum" or even pure aluminum to reduce costs, but sell it to you at copper prices.

What to expect:

• Best answer: Full copper (T2 copper)

• Acceptable: Clearly state aluminum busbars with a correspondingly lower price

• Red flag: Vague answers, or saying "copper and aluminum mixed"

✅ Our practice: Our standard configuration uses full copper busbars, and we provide thickness and dimension data. Aluminum busbars are available on a custom basis, with pricing clearly differentiated.

2️⃣ Component Brand: What Grade?

Why ask?
The price of circuit breakers, contactors, relays, and other components inside switchgear can vary by 2–3 times between different brands and series. Some suppliers use off-brands or obsolete series to lower their quotes.

What to expect:

• Best answer: Top international brands or top Chinese brands

• Acceptable: Clearly state the brand and series name so the customer can verify

• Red flag: Only say "well-known brand" without giving a specific name, or the brand cannot be found

✅ Our practice: Our quotations clearly list the brand and model of every component. Customers can specify brands. We offer multiple grades to suit different budgets.

3️⃣ Test Reports: Do You Have Type Test Reports?

Why ask?
Many low-priced products only undergo routine tests (basic energization and withstand voltage tests) and lack complete type test reports. Type tests include temperature rise, short-circuit, dynamic and thermal stability – key items that prove the product's design is qualified. Cabinets without type test reports may explode under short-circuit conditions.

What to expect:

• Best answer: Provide complete type test reports issued by a recognized authority

• Acceptable: At least provide routine test reports

• Red flag: Cannot provide any written report, or the report has expired

✅ Our practice: All our mainstream products have complete type test reports, and copies can be provided with shipment. Customers are welcome to inspect goods at our factory.

4️⃣ Warranty Period: How Long? What Does It Cover?

Why ask?
The warranty period directly reflects a supplier's confidence in their products. Some suppliers offer short warranty periods (e.g., 6 months) or narrow coverage (only major components, not labor), leaving customers to bear the cost of any problems.

What to expect:

• Best answer: Whole-unit warranty of 24 months or more, covering both components and labor

• Acceptable: Whole-unit warranty of 12 months

• Red flag: Warranty period less than 12 months, or verbal promises with no written documentation

✅ Our practice: We offer a standard 12-month whole-unit warranty, with an optional extension to 24 months. During the warranty period, we provide free repair or replacement for non-human damage.

5️⃣ After-Sales Response Time: How Soon Can You Get Support After a Fault?

Why ask?
In many parts of Africa, maintenance resources are scarce. If a supplier's after-sales response is slow when equipment fails, production could stop for weeks or even longer. This question helps you understand the supplier's after-sales support capability.

What to expect:

• Best answer: Provide remote video guidance with response within 24 hours

• Acceptable: Clearly state response time (e.g., technical support provided within 48 hours)

• Red flag: Vague answers like "as soon as possible" with no specific timeframe

✅ Our practice: We provide remote video guidance. When customers encounter faults, they can contact us via WhatsApp or other channels. Our technicians respond within 24 hours and guide local personnel through diagnosis and repair via video. We do not dispatch on-site personnel, but we provide clear Chinese/English drawings and operation videos to help customers solve problems themselves.

6️⃣ Spare Parts Supply: Can You Supply Spare Parts Long-Term?

Why ask?
Power distribution equipment is used for many years. If you need to replace spare parts a few years later but the supplier has discontinued them or cannot be reached, the customer is left in a difficult position. This question helps you assess the supplier's long-term support capability.

What to expect:

• Best answer: Commit to at least 10 years of spare parts supply, with a list of common spare parts

• Acceptable: Adequate spare parts for current models, with advance notice for discontinued models

• Red flag: No commitment to spare parts supply, or suggesting "buy new equipment when it breaks"

✅ Our practice: We commit to 10 years of spare parts supply for our mainstream products. Customers can purchase common spare parts kits (breakers, indicator lights, fuses, etc.) at the time of purchase for quick on-site replacement.

7️⃣ Delivery Lead Time: How Soon Can You Ship After Order?

Why ask?
Many projects have tight schedules. If the delivery lead time is too long, it can affect the entire project timeline. Different suppliers have very different production capacities and scheduling. Additionally, LV/MV switchgear is large and heavy, typically shipped by sea, so ocean transit time must also be factored into the overall plan.

What to expect:

• Best answer: Clearly state production lead time and estimated sea shipping time, with production progress tracking available

• Acceptable: State production lead time, with customer arranging their own shipping

• Red flag: Promising unrealistically short lead times, or unable to provide a production schedule

✅ Our practice: Standard configurations are ready for shipment within 2–3 weeks, custom products within 4–6 weeks. Our products are large and heavy, typically shipped by sea freight. We assist customers in arranging suitable vessel schedules. Production progress can be tracked at any time. Customers can either use their own freight forwarder or ask us to arrange shipping.

8️⃣ Installation Guidance: Do You Provide Installation and Commissioning Support?

Why ask?
Installing LV/MV switchgear requires expertise. If the supplier does not provide installation guidance, the customer's local electrician may wire things incorrectly, leading to equipment damage or safety hazards.

What to expect:

• Best answer: Provide detailed installation drawings, wiring diagrams, and remote video guidance

• Acceptable: Provide English drawings and technical manuals

• Red flag: Only ship the goods, with no technical support

✅ Our practice: We provide complete English drawings, wiring diagrams, and user manuals with the shipment. Remote video guidance is available for installation and commissioning. Customers can contact us anytime for technical support.

9️⃣ Quick Comparison Table: Good Supplier vs Bad Supplier

Conclusion

When purchasing LV/MV switchgear, do not look only at price. Behind a low price are often invisible configuration cuts.

These 8 questions help you see the true level of each supplier:

1. Busbar material → Copper or aluminum?

2. Component brand → What grade?

3. Test reports → Type tests available?

4. Warranty period → How long? What is covered?

5. After-sales response → How soon can you get support?

6. Spare parts supply → Long-term guarantee?

7. Delivery lead time → Production time + sea shipping?

8. Installation guidance → Technical support provided?

Advice for customers:

• Turn these 8 questions into a checklist and send them to every supplier

• Compare answers – do not look only at price

• Put key commitments in writing in the contract

We offer high-value LV/MV switchgear and assembled equipment. All our products meet international standards, and we provide complete after-sales support (remote video guidance + English/Chinese drawings + long-term spare parts supply). Contact us for a specification sheet and quotation. We provide transparent configuration details so you can buy with confidence and use with peace of mind.

Contact us：
Web: https://yqsxdl.en.made-in-china.com/
Whatsapp：+86 195 1818 9858
Mail: lunahe927@gmail.com/19518189858@163.com