DC MCB 80A-125A Mini Circuit Breaker
DC MCB 80A-125A mini circuit breaker with thermo-magnetic trip, 1P 2P 4P options, up to 1000VDC, 10kA breaking capacity, and DIN rail mounting for solar and DC protection systems.
DC MCB 80A-125A Mini Circuit Breaker
DC MCB 80A-125A mini circuit breaker for solar PV and DC electrical systems, available in 1P, 2P, and 4P versions, with thermo-magnetic trip protection, IEC/EN60947-2 compliance, and rated voltages up to 1000VDC.
Product Overview
Zivopower DC MCB 80A-125A Mini Circuit Breaker is designed for overcurrent and short-circuit protection in photovoltaic and DC power distribution systems. It is suitable for solar combiner boxes, battery systems, DC cabinets, and other applications where stable and reliable DC circuit protection is required.
This DC breaker adopts a thermo-magnetic trip mechanism and is available in 1P, 2P, and 4P versions. The rated current range includes 80A, 100A, and 125A, and the rated voltage reaches 1P(250VDC), 2P(500VDC), and 4P(1000VDC).
With a rated breaking capacity of 10,000A, impulse withstand voltage of 4,000V, and dielectric test voltage of 3kV, this mini circuit breaker provides dependable protection performance for high-current DC circuits. It is designed for DIN rail mounting and supports cable and busbar connection methods for convenient installation.
Technical Specifications
| Item | Specification |
|---|---|
| Product Name | DC MCB 80A-125A Mini Circuit Breaker |
| Standard | IEC/EN60947-2 |
| Protection | Overcurrent and short circuit |
| Type of Trip | Thermo-magnetic |
| No. of Poles | 1P, 2P, 4P |
| Rated Currents In | 80A, 100A, 125A |
| Rated Voltage Ue | 1P(250VDC), 2P(500VDC), 4P(1000VDC) |
| Rated Breaking Capacity | 10,000A |
| Rated Impulse Withstand Voltage (1.2/50) Uimp | 4,000V |
| Dielectric Test Voltage at Ind. Freq. for 1 min | 3kV |
| Thermal Release Characteristic | (1.05-1.30) x In |
| Magnetic Release Characteristic | (8-12) x In |
| Electrical Life | 4,000 Cycles |
| Mechanical Life | 10,000 Cycles |
| Contact Position Indicator | Yes |
| Protection Degree | IP20 |
| Ambient Temperature | -5℃ to +40℃, Max.95% humidity |
| Terminal Connection Type | Cable/Pin-type busbar/Fork-type busbar |
| Max. Terminal Size for Cable | 35mm² |
| Max. Tightening Torque | 2.5N.m |
| Installation | Mounting on 35mm DIN rail |
| Connection | According to the wiring diagram |
Electrical Performance
| Performance Item | Description |
|---|---|
| Protection Function | Provides overcurrent and short-circuit protection for DC circuits |
| Trip Mechanism | Thermo-magnetic trip design for reliable circuit interruption |
| Rated Voltage | 1P up to 250VDC, 2P up to 500VDC, 4P up to 1000VDC |
| Rated Current Range | Available in 80A, 100A, and 125A |
| Breaking Capacity | Rated breaking capacity up to 10,000A |
| Impulse Withstand Voltage | 4,000V impulse withstand performance |
| Dielectric Strength | 3kV dielectric test voltage for insulation reliability |
| Thermal Release | Thermal release characteristic at (1.05-1.30) x In |
| Magnetic Release | Magnetic release characteristic at (8-12) x In |
| Service Life | Electrical life 4,000 cycles and mechanical life 10,000 cycles |
Dimensions
Key Features
- Designed for DC overcurrent and short-circuit protection.
- Available in 1P, 2P, and 4P versions for different DC voltage applications.
- Rated current options of 80A, 100A, and 125A for higher-current DC circuits.
- Thermo-magnetic trip mechanism for reliable protection performance.
- Rated voltage up to 1000VDC for photovoltaic and DC systems.
- 10kA breaking capacity for dependable fault interruption.
- DIN rail mounting for convenient installation in combiner boxes and distribution enclosures.
- Supports cable, pin-type busbar, and fork-type busbar connections.
Applications
- Solar PV combiner boxes
- Photovoltaic DC distribution systems
- Battery energy storage systems
- DC control panels and enclosures
- Renewable energy systems requiring high-current DC circuit protection
- Industrial DC power circuits
Why Choose Zivopower
Zivopower provides practical and reliable solar and electrical protection components for PV, storage, and power distribution projects. We focus on stable product quality, clear technical data, and efficient export support to help customers source dependable products with lower risk and stronger project confidence.
- Professional supplier of solar, storage, and electrical protection products
- Clear technical specifications for easier sourcing and project evaluation
- Stable quality control before shipment
- Support for EPCs, distributors, and importers
- OEM and customized service available
- Responsive export support for international markets
Packaging and Delivery
Packaging: Standard export carton packaging according to model and order quantity.
Outer Protection: Protective packing suitable for sea, air, and land transportation.
Delivery Method: Sea shipment, air shipment, express, or courier according to quantity and urgency.
Lead Time: Depends on model, quantity, and production schedule.
Customization: Support for logo printing, label customization, OEM packaging, and model selection.
FAQ
What is a DC MCB 80A-125A used for?
It is used to protect DC circuits against overcurrent and short-circuit faults in solar, battery, and DC electrical systems.
What current ratings are available?
This model is available in 80A, 100A, and 125A.
How many pole options are available?
It is available in 1P, 2P, and 4P versions.
What is the rated voltage of this breaker?
The rated voltage is 250VDC for 1P, 500VDC for 2P, and 1000VDC for 4P.
What is the breaking capacity?
The rated breaking capacity is 10,000A.
How is this breaker installed?
It is mounted on a standard 35mm DIN rail.
What connection types does it support?
It supports cable connection, pin-type busbar, and fork-type busbar.
Can Zivopower provide OEM service?
Yes. Zivopower supports OEM service including logo printing, packaging customization, and labeling.