Professional 12V DC Mcb Manufacturers from China
- Precise production and complex craftsmanship
- Use of materials that maximize the performance of the parts
- Maximum service life
Langir's 12V DC Mcb with Excellent Quality & Lean Workmanship
Langir’s 12v DC Mcb’s are made with precision and complex processes, going through five major processes of assembly, calibration, riveting, re-calibration and packaging, going through multiple calibrations to ensure the instantaneous and delayed characteristics of them to ensure the quality of the product.
Langir’s Mcb uses silver, copper-clad steel and copper as key internal components, and in accordance with national regulations, the coils are thicker and the copper wire is thicker, so the 12v Mcb you buy from Langir has higher conductivity, higher ductility, corrosion resistance, slower heat generation and reduced friction, resulting in longer service life. 12 volt DC Mcb also The use of double gold composite materials saves resources and reduces costs without compromising on performance.
Other brands often use metals that are either not as effective or use fewer materials to reduce costs. Besides 12v, we also provide 24VDC DC MCB for you to choose.
12V DC Mcb Range
No delay in accordance with IEC/EN60947-2 standards, category is Class A.
Certificates & Insurance




Why We Choose Langir's 12V DC Mcb?
- Low level of contamination, only class 2.
- Degree of protection up to IP40, Peace of mind in terms of safety.
- They can withstand temperature differences of -25°C to 70°C during operation.
- Up to 1500 cycles endurance for electrical and 2000 cycles endurance for mechanical.

This is a 12 volt dc mcb specifically designed to protect the cable between the PV module and the inverter, detecting and protecting any bi-directional currents.
You can choose from 1-pole DC Mcb, 3-pole DC Mcb, 4-pole DC Mcb and a variety of currents.
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 12v MCB will arrive in good condition and ready for installation.
Langir keeps it in stock. If sufficient stock is available, your order will be delivered within 2 to 3 days of confirmation.
However, in the rare event of a shortage, you will be notified immediately.
Langir will ensure that you receive your order intact and hassle free.
Yes, Langir offers a 365-day warranty on all of its products.
But all of Langir’s products are of world-class quality to ensure your satisfaction.