Can a DC MCB protect against short circuits and overloads?

Yes. A properly selected DC MCB provides protection against both overloads and short circuits within its rated operating conditions.

DC Circuit Breaker MCB with Enhanced Protection for PV Applications

Name: DC Circuit Breaker MCB with Enhanced Protection for PV Applications
Brand: Zhejiang Yro New Energy Co., Ltd.
SKU: 2311196295

Zhejiang, ChinaZhejiang Yro New Energy Co., Ltd.

US$3.15

500 Pieces

Sample price:US$100.00/piece.Request sample

Product profile

Customization

Available

Breaking Capacity

Low Voltage Circuit Breakers

Operation

Electric Type

Model NO.

YRCB-125DC

Speed

High-Speed Circuit Breaker

Arc-extinguishing Medium

Air

Installation

DIN Rail

Structure

MCB

Poles Number

Type

Circuit Breaker

Function

Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)

Certification

Rated Current

125A

Rated Voltage

250V

Curve

B,C,D Type

Pole

Certificate

Trademark

YRO

Origin

Zhejiang, China

Key features

Overcurrent & OVP Protection: Provides conventional circuit breaker failure protection, overcurrent protection, and overvoltage protection.

High-Speed Arc Extinguishing: Features high-speed operation with air arc-extinguishing medium for safe circuit interruption.

DIN Rail Installation: Compact structure designed for easy installation in electrical panels and solar power systems.

Solar System Compatibility: Specifically designed for photovoltaic systems, battery storage, and low voltage DC distribution.

Durable Construction: Built with upgraded internal components and durable materials for stable long-term performance.

Flexible Customization: Offers full customization, flexible customization, and minor customization from samples or designs.

CE Certified: Product certification includes CE compliance for safety and quality assurance.

Rapid Response Support: Average lead time within 15 workdays during both peak and off-peak seasons.

Company profile

Years of Export ExperienceHigh Repeat Buyers ChoiceProduct CertificationProduction Process Visualization

Zhejiang Yro New Energy Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 15 Years CertifiedNearest Port: Ningbo PortAverage Response Time: ≤1.87h

About Our Factory & Business Background

AddressWenzhou, Zhejiang, China

Plant Area4233 square meters

Number of Employees45

Registered Capital10,000,000 RMB

Terms of PaymentT/T, LC, D/P, PayPal, Western Union, Small-amount payment

International Commercial Terms(Incoterms)FOB, CIF, CFR, EXW

Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays

Supply Chain Partners100

Our Production Capability & Technical Expertise

Main ProductsAutomatic Transfer Switch, Rapid Shutdown Device, PV Combiner Box, Isolator Switch, Circuit Breaker, Fuse Holder, Surge Protector

Production Lines10

Production MachinesInjection Molding Machine, Laser Marking Machine, Ultrasonic Welding Machine, Pad Printing Machine, Automatic Packaging Machine

QA/QC inspectors5 people

Inspection Type for Finished Products100% inspection(Visual inspection & Function inspection)

Inspection Method for Finished ProductsHave instructions and uniformly followed

R&D Engineers3 people

Traceability of Raw MaterialsYes

Own BrandYes

Our Industry Experience & Global Business Record

Year of Establishment2011-07-14

Main MarketsNorth America, Europe, Southeast Asia/ Mideast, Africa

Repeat Buyers Choice80%~100%

Number of Foreign Trading Staff4

Overseas Agent/BranchNo

New Products Launched in Last yearNo

Our Certifications, Standards & Industry Recognition

Management System CertificationISO9001:2015

Product CertificationCE, RoHS, Others

Cooperated with Fortune 500No

Product Q&A

Q:What is a DC MCB?

A DC MCB is a miniature circuit breaker designed for direct current circuits. It protects DC electrical systems against overloads and short circuits.

Q:Where are DC MCBs commonly used?

DC MCBs are commonly used in photovoltaic systems, solar power systems, battery storage systems, DC distribution equipment, and other direct current applications.

Q:What is the difference between a DC MCB and an AC MCB?

DC MCBs are specifically designed to interrupt direct current. Because DC does not naturally cross zero like AC, DC MCBs require suitable arc-extinguishing structures for safe circuit interruption.

Q:How do I choose the right DC MCB?

You should consider the system voltage, rated current, number of poles, breaking capacity, installation environment, and the requirements of the specific DC application.

Q:Can a DC MCB be used in a solar PV system?

Yes. A DC MCB can be used for circuit protection in suitable photovoltaic systems when its rated voltage, current, breaking capacity, and DC application specifications match the system requirements.