We accept T/T, L/C, D/P, WEST UNION, PAYPAL, CASH,etc.
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QWhat is the payment term?
2021-9-18+AQWhat is the standard of package?
2021-9-18+AWe have our own design carton with five layers corrugated material; if have any other special requirement of package, we also support customize service.
QDo you accept OEM business?
2021-9-18+AWe can provide OBM, ODM and OEM services.
QHow does your factory do regarding quality control?
2021-9-18+AOur production strictly follow ISO9001 quality control system, also we have ERP system for more convenient management & Delivery control.
QWhat kind of certificate you have?
2021-9-18+AWe have ISO9001, CCC, CB, CE, IEC, INMETRO.
QWhich market do you already sell?
2021-9-18+AWe already ship to many South America, African countries, Middle East, Southeast Asia etc.
QWhat voltage range can you support?
2021-9-18+ASingle-phase 220v input, single-phase 220v output;
Single-phase 220v input, three-phase 220v output;
Three-phase 220v input, three-phase 220v output;
Single-phase 220v input, three-phase 380v output;QHow to choose the power of the frequency inverter?
2021-9-18+AAccording to your motor power, you can click “Chat Now” on the right and our sales staff will provide you with solutions online.
QDo you support urgent orders?
2021-9-18+AOf course. We have an ERP management system. Once there is an inventory warning,
we will prepare materials in advance to meet the urgent needs of customersQWhat is the standard of package?
2021-9-18+ABelow 30kw, it’s carton package; 37kw and above, it’s wooden package.
QAbout the terminal instructions of the frequency inverter?
2021-9-18+AR, S, T are input terminals of three-phase power supply of frequency converter.U, V, W are output terminals of frequency converter, and connected three-phase asynchronous motor P+ and PB are connected to the brake unit, P+ and P- are connected to DC (solar panel)
QHow to ensure product quality?
2021-9-18+AOur production strictly follow ISO9001 quality control system. After four times quality inspect and high temperature testing we will print “QA” pass.
QDo you accept OEM business?
2021-9-18+AWe accept OEM and ODM with your autherization.
QWhat is the rated current range you can offer?
2021-9-18+AWe offer DC MCB from 1A to 125A, and DC MCCB from 63A to 630A.
QWhat is your DC MCB quality?
2021-9-18+AOur DC MCB is designed for solar PV system, all the parts in the DC MCB are for direct current standard. Not all the MCB are DC MCB!
QWhat is your production capacity of DC MCB?
2021-9-18+AWe can make 300,000 pole one month. If you have order plan, feel free to contact us, I will tell you delivery time according to your demand.
QWhat is a miniature circuit breaker?
2021-9-18+AIt can connect, carry and break the current under normal circuit conditions. Under specified abnormal conditions (such as short-circuit current), A mechanical switching device that can also switch on, carry-fixed time and break current.
With current overload protection and line short circuit protection, the rated current does not exceed 125AQHow to choose the right circuit breaker?
2021-9-18+AThe circuit breaker is generally selected at 1.5 times the normal working current.
QWhat is the difference between 2P and 1P+N of circuit breaker?
2021-9-18+AP represents the number of poles, N represents the zero line, 2P represents that both poles of the miniature circuit breaker have thermal and magnetic protection functions, and the width is 36mm;
And 1P+N, only the hot wire thermal magnetic protection function, the N pole has no thermal magnetic protection function, but it will be disconnected from the live wire at the same time, the width is 18mm;
Therefore, 1P+N is more economical than 2P, and it also has higher safety. It is suitable for applications with small current such as lighting circuits.QHow to get a quote?
2021-9-18+APlease contact our sales staff and leave a message that you need which poles, current, quantity, EXW/FOB or CIF,
we will reply you as soon as we receive the message.Contact Us
USFULL specializes in solar pumping inverter and variable frequency drive. The product technology research and development is constantly updated. The shell design is patented. We only make products that make customers happy.
24-hour service phone:0086-577-61728833