|
Still deciding? Get samples of $ !
Request Sample
|
| Customization: | Available |
|---|---|
| Breaking Capacity: | Low Voltage Circuit Breakers |
| Operation: | Electric Type |
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Product Name: DC Miniature Circuit Breaker (DC MCB)
Poles: 1P / 2P / 3P / 4P
Voltage Range: DC 250V - 1200V
1. Product Overview
This DC Miniature Circuit Breaker (DC MCB) is specially designed for direct current (DC) control circuits, providing reliable overcurrent, short-circuit, and overvoltage protection for a variety of DC power distribution systems-22. Featuring a compact modular design and standard DIN rail mounting, it is the ideal safety device for high-voltage DC applications-18.
With multiple pole configurations (1P to 4P) and a wide operating voltage up to DC 1200V, this DC MCB ensures the safety of both equipment and personnel in demanding electrical environments-18.
2. Key Features & Benefits
Comprehensive Circuit Protection: Provides precise overload and instantaneous short-circuit protection. In the event of overcurrent or overvoltage faults, the breaker trips quickly to safeguard lines and connected equipment-13.
Wide Voltage & Pole Coverage: Available in 1P, 2P, 3P, and 4P configurations, supporting DC 250V (1P), DC 500V/600V (2P), DC 750V/900V (3P), and up to DC 1000V/1200V (4P)-13-11.
Advanced Arc Extinguishing Design: Equipped with a magnetic blow-out arc extinguishing system and a current limiting mechanism, which rapidly breaks the DC arc, extends the product's lifespan, and ensures safe fault clearing-18.
Built to Last: The thermal-magnetic release mechanism ensures high reliability. Mechanical life reaches up to 20,000 operations, with an electrical life of 1,500 to 10,000 cycles-22-11.
DIN Rail Mounting: Standard 35mm DIN rail design allows for quick, tool-free installation and easy integration into distribution boxes and combiner boxes-18.
International Certifications: Complies with IEC 60947-2 and GB/T 14048.2 standards, with optional UL and TUV certifications available to meet global market requirements-11-13.
3. Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | DC Miniature Circuit Breaker (DC MCB) |
| Poles | 1P, 2P, 3P, 4P |
| Rated Operational Voltage (Ue) | DC 250V (1P) / DC 500V (2P) / DC 750V (3P) / DC 1000V-1200V (4P)- |
| Rated Current (In) | 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A |
| Breaking Capacity (Icu) | 6kA / 10kA |
| Tripping Characteristics | B Curve, C Curve (Thermal-Magnetic Type) |
| Rated Insulation Voltage (Ui) | 500V / 1000V /1200V |
| Rated Impulse Withstand Voltage (Uimp) | 6kV- |
| Mechanical Life | 20,000 times |
| Electrical Life | 1,500 - 10,000 times |
| Protection Degree | IP20 |
| Installation | 35mm DIN Rail Mounting |
| Ambient Temperature | -30ºC to +70ºC-13 |
| Certifications | IEC 60947-2, GB/T 14048.2 CB, CE, TUV |
| HS Code | 85362010 / 8536200000 |
4. Applications
This DC MCB is widely used in a variety of DC systems, especially in the renewable energy sector-34:
Photovoltaic (PV) Systems: Used as a protection device on the DC side of solar arrays, including PV strings, combiner boxes, and inverter input terminals-18.
Energy Storage Systems (ESS): Provides overcurrent and short-circuit protection for battery packs and DC busbars-18.
EV Charging Stations: Protects high-power DC charging piles from electrical faults-34.
Industrial DC Power Supplies & Telecom Backup Systems: Suitable for DC distribution panels and backup power scenarios requiring high-voltage protection-
5. Why Choose Our DC MCB?
Factory Direct: Competitive pricing and high quality.
Fast Delivery: Ready stock for bulk orders.
OEM/ODM Support: Customized labeling and packaging available.
Customer Support: Technical support for global shipping and installation.
){kind=link}