- IEC 60947-2, EN60947-2, GB 14048.2
- 1 P=250 V DC, 2P=500 V DC 3P=750 V DC, 4P=1000 V DC
- Different curve
- 1A to 63A
- Description
- Order Code
- Download
IEC 60947-2, EN60947-2, GB 14048.2
Langir’s JB circuit breaker is specially built for multiple string photovoltaic applications including inverters as well as electrical systems with three phases.
This device serves as a safety measure able to detect abnormalities in the current flow such as overloading, surges, or short circuits.
In the event that current abnormalities happen, it quickly stops the current flow and this action protects the cables and the electrical components that are attached to it.
For an added safety measure, it can be padlocked when it is turned off using a suitable padlock.
Furthermore, it can be connected to the following devices for additional electrical system protection:
- RCD or residual current device for AC
- ELCB or also known as an earth leakage circuit breaker for DC
- FPI referred to as the fault passage indicator
DC circuit breaker E-catalogue, please download it below:
Related Products
Langir 3 Pole DC Circuit Breaker Introduction
Langir is your trustworthy provider of high performing and reliable 3 pole DC circuit breakers from China.
Their 3 pole DC circuit breakers are meticulously built to guarantee world class quality, lasting performance, and high reliability.
The 3 pole DC circuit breaker is like three separate 1 pole DC circuit breakers bound together with five terminals.
It also means that a 3 pole DC circuit breaker also has 3 separate switches that work together when necessary.
3P DC circuit breaker
The Working Principle
A 3 pole DC circuit breaker is a switch that quickly cuts the electricity flow once an electrical problem occurs such as overloading, short circuit, power surges, etc.
This device acts as a shield to protect the electrical equipment or appliances from the possible damages caused by electrical problems.
These electrical damages can cause your equipment or appliances to overheat or burned which causes anyone to spend more for the necessary repairs or replacement.
Unprotected circuits could be quite expensive and in a year, it could amount to a good amount where you may face financial burdens.
3P DC Circuit Breaker applications
3 Pole DC Circuit Breaker vs 4P DC Circuit Breaker
Langir’s 3 pole DC circuit breakers work similarly to a single pole DC circuit breaker.
But the difference is, the 3 pole DC circuit breakers have more connected or bridged conductors and they are oftentimes used in three phased electrical systems.
The 3 pole DC circuit breakers trip breaking the bridge and opening the circuit, once there’s a surge anywhere in the electrical system.
While 3 pole DC circuit breakers are used in high power applications, 4P DC circuit breakers are required when there are two alternative sources of power.
If a power failure happens, the standby generator takes over.
When the protection is connected to zero and not grounded, it is best to use 3 pole DC circuit breakers while 4P DC circuit breakers are best to use when the protection is grounded.
Factory with high powered machines
The Advantage
Langir is recognized by many international certification standards such as IEC, SAA, and TUV Rheinland.
You can be sure that Langir will provide you with high quality products and deliver them to you fast and secure.
Their 3 pole DC circuit breakers are easy to install that will save your time and money from expensive professional fees.
Ordering
You can order the 3 pole DC circuit breakers through several outlets such as electrical or hardware stores, and even in large depocenters.
If you prefer online purchases, you can visit your favorite manufacturer’s website and order online.
Langir is a circuit breaker manufacturer and supplier you can trust.
They can accept orders online, via email, or via phone transactions too whichever is most convenient for you.
A knowledgeable and friendly assistant will be happy to help right away.
Langir accepts small or big orders and they also offer other products too such as push button switches.
They understand that you want to try out their products first too, so you may inquire about samples.
Strict in quality and performance, Langir is your go-to supplier of reliable 3 pole DC circuit breakers.
Send in your inquiry now.
Langir’s DC circuit breakers