DC MCB, DC Miniature Circuit Breaker for Solar PV System

DC MCB, DC Miniature Circuit Breaker for Solar PV System

Rated current(In):6A,10A,16A,20A,32A,40A,50A,63A
Rated operation voltage Ue:1P(DC48-250V),2P(DC48V-500V),3P(DC48V-750V),4P(DC48V-1000V)
Thermal magnetic release:C,D
Number of poles:1P,2P,3P,4P
Mechanical life:20000 cycles
Electrical life:10000 cycles
Rated short-circuit breaking capacity(Icn):6kA
Rated impulse withstand voltage(Uimp):4kV

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1. Product Overview

DC MCB (DC Miniature Circuit Breaker) is a professional DC circuit protection device specially designed for solar photovoltaic systems, battery energy storage systems, off-grid power stations and various DC electrical equipment. Unlike ordinary AC breakers, this DC MCB features dedicated DC arc extinction technology, fast tripping response and stable low-voltage current resistance, effectively solving DC arc burnout and circuit overload problems. It provides full-range safety protection for solar panels, batteries, controllers and whole DC power systems, widely used in residential solar projects, commercial PV stations, RV power systems and energy storage equipment.

2. Core Features

Professional DC Arc Extinction Design: Adopts special DC arc extinguishing structure, which can quickly cut off DC current, avoid continuous DC arc combustion, and solve the pain point of difficult DC circuit breaking.
Full Safety Protection: Integrates overload protection and short circuit protection. It will automatically trip when the circuit is overloaded or short-circuited to protect DC electrical equipment from damage.
Wide Current & Voltage Range: Supports multiple specifications 10A/16A/20A/32A/40A/63A, compatible with common DC voltage systems, meeting different solar and energy storage project needs.
High-quality Fireproof Material: The shell is made of high-strength anti-flame engineering plastic, high temperature resistant, anti-aging, anti-breakdown, ensuring long-term stable operation in harsh outdoor and electrical environments.
Standard DIN Rail Mount: Compatible with standard DIN rail installation, easy and fast to install, no complicated wiring, suitable for quick assembly of power distribution boxes.
Stable & Durable Performance: Precise internal electromagnetic structure, sensitive tripping, stable mechanical performance, long service life, reducing equipment maintenance and replacement costs.

3. Product Specifications

Item	Specification
Product Name	DC Miniature Circuit Breaker (DC MCB)
Protection	Overcurrent and short circuit
Type of trip	Thermo-magnetic
Rated voltage(Ue)	1P(250VDC),2P(500VDC),3P/4P(1000VDC)
Rated currents(In)	6,10,16,20,25,32,40,50,63A
Rated Current	10A, 16A, 20A, 32A, 40A, 63A
Application	Solar PV System, Battery Storage, Off-grid Power, RV DC System
Mounting Type	Standard DIN Rail Mount
Protection Function	Overload Protection, Short Circuit Protection
Shell Material	Anti-flame & High-temperature Resistant Plastic
Feature	Fast Tripping, DC Arc Extinction, Durable
Standards	IEC/EN60947-2

4. Application Scenarios

This professional DC MCB is specially optimized for DC power supply scenarios, perfectly matching solar photovoltaic power generation systems, battery energy storage systems, off-grid household power stations, RV and yacht DC power systems, solar street light power distribution systems. It can effectively avoid circuit failure and equipment burnout caused by DC overload and short circuit, being the essential safety protection device for DC power distribution systems.

5. Product Advantages

Most ordinary AC breakers cannot adapt to DC circuits, which are prone to arc failure and failure to trip. Our dedicated DC MCB solves this industry problem perfectly. With professional DC breaking technology, sensitive protection response and industrial-grade quality, it provides safer and more stable circuit protection for solar and energy storage projects. Multiple current specifications support customized project matching, suitable for individual household use and large-scale engineering wholesale.

6. FAQ

Q1: Can this DC MCB be used for solar panel systems? A1: Yes, it is specially designed for solar PV DC systems, fully compatible with solar panel and battery combination systems.

Q2: What is the difference between DC MCB and AC MCB? A2: DC MCB has professional DC arc extinction function, which can cut off DC stable current effectively; AC breakers are easy to generate continuous arc in DC circuits and cannot protect normally.

Q3: Is DIN rail installation supported? A3: Yes, it adopts universal standard DIN rail design, easy to install and replace.

7. Purchase & Support

We provide high-quality DC MCB with complete specifications, reliable quality and competitive factory wholesale price. Support bulk customization and global shipping. If you need sample test or project quotation, please feel free to contact us.

1. Product Overview

DC MCB (DC Miniature Circuit Breaker) is a professional DC circuit protection device specially designed for solar photovoltaic systems, battery energy storage systems, off-grid power stations and various DC electrical equipment. Unlike ordinary AC breakers, this DC MCB features dedicated DC arc extinction technology, fast tripping response and stable low-voltage current resistance, effectively solving DC arc burnout and circuit overload problems. It provides full-range safety protection for solar panels, batteries, controllers and whole DC power systems, widely used in residential solar projects, commercial PV stations, RV power systems and energy storage equipment.

2. Core Features

Professional DC Arc Extinction Design: Adopts special DC arc extinguishing structure, which can quickly cut off DC current, avoid continuous DC arc combustion, and solve the pain point of difficult DC circuit breaking.
Full Safety Protection: Integrates overload protection and short circuit protection. It will automatically trip when the circuit is overloaded or short-circuited to protect DC electrical equipment from damage.
Wide Current & Voltage Range: Supports multiple specifications 10A/16A/20A/32A/40A/63A, compatible with common DC voltage systems, meeting different solar and energy storage project needs.
High-quality Fireproof Material: The shell is made of high-strength anti-flame engineering plastic, high temperature resistant, anti-aging, anti-breakdown, ensuring long-term stable operation in harsh outdoor and electrical environments.
Standard DIN Rail Mount: Compatible with standard DIN rail installation, easy and fast to install, no complicated wiring, suitable for quick assembly of power distribution boxes.
Stable & Durable Performance: Precise internal electromagnetic structure, sensitive tripping, stable mechanical performance, long service life, reducing equipment maintenance and replacement costs.

3. Product Specifications

Item	Specification
Product Name	DC Miniature Circuit Breaker (DC MCB)
Protection	Overcurrent and short circuit
Type of trip	Thermo-magnetic
Rated voltage(Ue)	1P(250VDC),2P(500VDC),3P/4P(1000VDC)
Rated currents(In)	6,10,16,20,25,32,40,50,63A
Rated Current	10A, 16A, 20A, 32A, 40A, 63A
Application	Solar PV System, Battery Storage, Off-grid Power, RV DC System
Mounting Type	Standard DIN Rail Mount
Protection Function	Overload Protection, Short Circuit Protection
Shell Material	Anti-flame & High-temperature Resistant Plastic
Feature	Fast Tripping, DC Arc Extinction, Durable
Standards	IEC/EN60947-2

4. Application Scenarios

This professional DC MCB is specially optimized for DC power supply scenarios, perfectly matching solar photovoltaic power generation systems, battery energy storage systems, off-grid household power stations, RV and yacht DC power systems, solar street light power distribution systems. It can effectively avoid circuit failure and equipment burnout caused by DC overload and short circuit, being the essential safety protection device for DC power distribution systems.

5. Product Advantages

Most ordinary AC breakers cannot adapt to DC circuits, which are prone to arc failure and failure to trip. Our dedicated DC MCB solves this industry problem perfectly. With professional DC breaking technology, sensitive protection response and industrial-grade quality, it provides safer and more stable circuit protection for solar and energy storage projects. Multiple current specifications support customized project matching, suitable for individual household use and large-scale engineering wholesale.

6. FAQ

Q1: Can this DC MCB be used for solar panel systems? A1: Yes, it is specially designed for solar PV DC systems, fully compatible with solar panel and battery combination systems.

Q2: What is the difference between DC MCB and AC MCB? A2: DC MCB has professional DC arc extinction function, which can cut off DC stable current effectively; AC breakers are easy to generate continuous arc in DC circuits and cannot protect normally.

Q3: Is DIN rail installation supported? A3: Yes, it adopts universal standard DIN rail design, easy to install and replace.

7. Purchase & Support

We provide high-quality DC MCB with complete specifications, reliable quality and competitive factory wholesale price. Support bulk customization and global shipping. If you need sample test or project quotation, please feel free to contact us.