How is the DC MCB Circuit Breaker Work?
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How is the DC MCB Circuit Breaker Work?

Publish Time: 2022-04-25     Origin: Site


How Does It Work in a Photovoltaic (PV) System?

The most important question is: how do DC circuit breakers work? DC circuit breakers act the same way as AC circuit breakers, with heat and magnetic protection.

When the electric current exceeds the rated value, the thermal protection trips the breaker. The bimetallic contact heats up and expands as the current generates much more heat. Thermal protection can assist in current overloaded situations.

Magnetic protection in DC circuit breakers trips the breaker when many fault current is present. Even at their most extreme, DC circuit breakers can break fault current. Magnetic protection is vital in DC circuit breakers because it can prevent short circuits and other failures.


Why are DC Circuit Breakers Important for Solar PV Panels?

DC breakers are critical in solar Photovoltaic (PV) panels systems. Circuits for solar panels are a pricey component of the system. As a result, it is vital to safeguard them using a DC circuit breaker. You can connect the Solar PV System panels’ circuits to a combiner box. The DC circuit breaker also protects the circuits and boards.

It can turn the solar irradiation into direct current via photovoltaic solar panels, and photovoltaic installations require the use of DC circuit breakers. Even a minor discrepancy might be highly costly. In the case of electric vehicles, you can use the EV charging stations to recharge their batteries. Technicians set up the system here to work with direct current. As a result, DC circuit breakers are required in these systems to avoid any mishaps. Because they both use direct current, photovoltaic solar panels and electric vehicles can work well together. It is also unnecessary to convert this direct current to an alternating current. You can easily control the automatic systems with DC circuit breakers. That occurs for them to be able to respond quickly.


Products Available

DC MCB For PV

Specifications:



Model

DZ47-63DC

Pole

1P, 2P, 3P, 4P

Rated current

1/2/3/4/6/8/10/16/20/25/32/40/50/63/80/100/125

Rated Operating Voltage

12V-1200V DC

Rated Current In

1A-125A

Run Breaking Capacity lcs

75%

Curve Type

C

Trip Type

Thermal-magnetic

Mechanical life (times)

20000

Electrical life (times)

10000

Standard

IEC  60947-2

Accessory

Shunt release,Under voltage release

Maximum wiring capacity

25mm²




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