FAQ
How can you guarantee quality?
What can I buy from you?
DC circuit breakers，AC circuit breakers , Air circuit breaker , DC switch
When will you leave your factory and to have your spring festival holidays?
The Spring Festival is the most important holiday in China, and we will have a holiday of about 20 days. Of course, you can also contact us, and our sales personnel will reply to you when they see it.
Can I transfer the money to you then you pay to other supplier?
Yes, no problem.
Can I delivery the goods from other supplier to your factory? Then load together?
Yes, no problem.
Do You have office in shanghai or guangzhou that i can visit?
Our office is in Wenzhou.
Can I only buy some spare parts from you?
Of course, I believe that long-term cooperation starts with small orders.
Will you will attend the fair to show your products?
There are plans to go in the future.
Can you send your equipment to my warehouse in guangzhou?
Yes, no problem.
How do you pack the equipment?
Normally are cartons, we also follow the special requests of our customers.
How many years have your company made this kind of products?
We have been specializing in the production of circuit breakersfor over 20 years.
Which certificate do you have for your products?
We have ISO9001 ISO14001 ISO 45001 CE CB TUV CCC ROHS.
How many staffs do you have in your factory?
There are 100 workers, 8 technicians, and 5 sales personnel.
How can I to be your agent in my country?
To be honest, each country is somewhat different, contact us through email, we will give you the best price and look forward to your greetings.
Do you have any real project pictures of the equipment?
Yes, we have the catalogue and we can send it to your email.
How far is your factory from the city hotel?
About 10 minutes by car.
How far is your factory from the airport?
About 40 minutes by car.
How long it will take from guangzhou to your factory?
Guangzhou is about 1000 kilometers away from us. Take driving for example, it takes about 13 hours.
Where is your factory located?
Our factory is located in Liushi, Yueqing, Zhejiang Province, the capital of electrical appliances in China.
Do you provide free spare parts?
We can supply the sample if we have ready parts in stock, but the customers have to pay the shipping cost.
Do you have detailed and professional installation manual?
We have many kinds of products, please contact us.
If OEM is acceptable?
Yes, Our company is available for Retail & Wholesale& OEM & ODM.
Do you provide sample? Free or charge?
Yes, we could offer the sample for free charge but do not pay the cost of freight.
What is your term of payment?
We accept TT, 30% deposit and 70% balance agaisnt copy of BL, or palpay and so on. B. L/C at sight.
What is your MOQ?
The MOQ of different products will be different, pls confirm with our sales before ordering.
Are you a trading company or a manufacturer?
We are the Direct Manufacture Factory, and our factory has specialized in industrial electronic products since 1997.
How long is your delivery time?
Samples cost 5-7 days. Bulk order cost 12-15 days.
How many production lines in your factory?
4 production lines.
When I can receive quotation and detail information after send the enquiry?
Reply will be sent in 48 hours.
Can I get a sample for test before place order?
Yes, Of course!
What's your shipment method?
We ship by Express, by air, by sea, by train.
What is DC MCCB?
ZAM6 Series DC MCCB was designed for direct current (DC1000V DC1500V) control circuit applications, used for over-current protection within appliances or electrical equipment. It provide optimization products for DC system applications such as PV,Energy storage system .
Difference between AC MCCB and DC MCCB?
Breaking a DC MCCB is more challenging than breaking an AC MCCB because AC MCCBs use zero-crossing detection to extinguish the arc, while DC MCCBs require mechanical interruption or cooling to achieve the same result. Additionally, DC MCCBs have a faster opening time than AC MCCBs.
Are MCCBs OK for DC?
When working with DC circuits, it is crucial to use MCCBs that are specifically designed and marked with DC ratings. It is important to note that AC MCCBs should never be used in DC circuits, as they are not designed to extinguish the arc that is created in DC circuits. Using AC MCCBs in DC circuits can lead to overheating of wires, which can ultimately result in a fire. Therefore, it is not safe to assume that AC MCCBs can be used in DC circuits solely based on their matching ampere and voltage ratings.
How do I choose a MCB for DC?
To ensure proper selection of a suitable MCCB for a DC circuit, it is essential to first determine the total current of the circuit. Once the current is determined, the appropriate MCCB can be selected accordingly. It is important to note that the current rating of the MCCB should not exceed the cable's current carrying capacity. Therefore, it is necessary to carefully match the MCCB's current rating with the cable's capacity to avoid any potential hazards or damages.
What is the voltage of DC MCCB?
DC MCCB are designed to operate within a voltage range of 12 to 1500 volts DC.
What are the advantages of DC circuit breaker?
Circuit breakers in DC circuits serve two main purposes: protecting individual loads that operate on DC power, and safeguarding primary circuits such as those found in inverters, solar PV arrays, or battery banks.
What is the capacity of DC MCCB?
When selecting a DC MCCB, it is important to consider the breaking capacity required for the specific application. Industrial-grade DC MCCBs typically have a breaking capacity of up to 20 kA. Therefore, it is essential to evaluate the application and select a DC MCCB with an appropriate breaking capacity to ensure safe and reliable operation of the circuit.
What's your main product?
We have AC400V MCCB ELCB ACB， AC800V MCCB ACB, DC500V DC 1000V DC1500V MCCB and DC1500V 2500A switch.
How long is the product guarantee?
We provide 18-month warranty and have a dedicated department responsible for ensuring the quality of our products. Every single product undergoes 100% inspection to ensure its quality.
What are the uses of Type A leakage circuit breaker?
Type A residual current circuit breaker is mainly used in large charging pile systems to detect DC pulsating leakage current.
What is the difference between Type A leakage circuit breaker and Type AC leakage circuit breaker?
The main difference between Type A leakage circuit breaker and Type AC leakage circuit breaker is that Type AC only provides protection against AC leakage and cannot respond DC pulsating leakage, thus failing to provide protection; while Type A not only provides protection against AC leakage but also against DC pulsating leakage. Therefore, Type provides more comprehensive and safer leakage protection than Type AC.
