The Leading DC MCB Manufacturer From China
- #1 choice for reliable miniature DC circuit breakers
- Tough on overloads and short circuits
- 100% reliable performance
- Quick trip action and super long service life
- Call us now to inquire it!
Your Choice, Langir DC MCB
Langir is your #1 choice of DC MCB supplier from China. When you order from Langir, you can trust that you are in good hands and you will only receive world class quality DC MCBs.
This is because Langir has been in the industry for decades now and has been a leading expert when it comes to circuit breakers and switches. If you need a dependable DC MCB factory, no need to look any further, you can always depend on Langir. With Langir, you have more DC MCB options.
Select from single pole DC MCB, double pole DC MCB, three poles DC MCB, and four poles DC MCB. Langir also offers various ampere ratings from 1 amp to 63 amps or from 250V up to 1000V so you can choose whichever is required for your circuits.
Our DC MCBs are easy to install with their slide in mounting method which only takes a couple of seconds. Langir DC MCBs are approved by SAA, compliant with TUV Rheinland, EN60947-2, IEC 60947-2, and IEC 60947-2.
You can use our DC MCBs for the circuits of your home, business, as well as for circuits in factories and for any other electrical devices that need protection from an electrical fault.
Langir is committed to providing you with trustworthy DC MCBs that you can depend on for a lifetime
Langir DC MCB Range
DC MCB Is Guaranted to Support Your Business




Langir DC MCB Parts
- Miniature but built strong for photovoltaic purposes
- Robust insulating materials for better and safer operation
- IEC/EN 60947-2 standard
- Not polarity sensitive, inverse wires without risk!

Langir Electric - China Leading DC MCB Supplier
The Langir DC MCB is your best choice for a reliable DC miniature circuit breaker that will provide optimum performance all the time without fail.
It is precisely designed and built to perfectly handle short circuits, overloading, power surges, or any electrical fault. With Langir DC MCB you can be sure that your circuits are safe including you.
So Call Langir for your DC MCB now!
Langir DC MCB Optimum Performance for Your Safety!
1.DC MCB Defination
It is an electrical switch that can be operated automatically to protect an electrical circuit. It also protects the connected electrical objects from the damaging effects of short circuits, power surges, or any other fault in the circuit.
The type of current that a DC MCB is built for is direct current; The primary purpose is to stop the current from running if a current fault has been detected. After it has taken action, it has to be reset manually to recommence its protective operation.
The DC MCB is available in different sizes and configurations, usually 1 pole, 2 poles, 3 poles, and 4 poles.
The DC MCB price can cost around $10 and can cost as much as $30 depending on its brand, size, or its type.
2.The Standard Size of a DC MCB
One unit of a DC MCB has a length of 89 mm and a width of 18 mm.
The width is multiplied if the DC MCB has two, three, or four units in one molded frame. While the length of its side angle is 77.4 from the DC MCB’s back up to the tip of its handle.
While this is considered the standard measurements of the DC MCB, some manufacturers may use slightly different dimensions that do not affect its installation.
The Langir’s DC MCB is your top choice for dependable miniature DC circuit breakers which will consistently protect your circuits and prioritize your safety.
You can choose from 1, 2, 3, and 4 poles DC MCB types.
Langir’s DC MCB available amp ratings are from 1 to 63 amps.
For small orders, Langir will use express delivery like FedEx, UPS, DHL, EMS, and TNT.
These deliveries are door to door service.
While for big orders, Langir will send them either via air or sea.
Langir will guarantee safe and protected order packaging to ensure that the DC MCBs will arrive in good condition and ready for installation.
Langir keeps stocks of DC MCBs.
If there are enough stocks, your order will be delivered within 2 to 3 days upon confirmation.
But in the rare event that there is a shortage, you will be notified right away.
Langir will make sure that you will receive what you ordered complete and hassle free.
Yes, Langir provides 365 days warranty for all of its products.
But all Langir’s products are world class quality to ensure your satisfaction.