Solar Circuit Breaker MCCB 2P-125A / 500V DC
Available in stock
| Quantity | Price per unit | You save |
|---|---|---|
| 1–2 pcs | 186,99 lei | — |
| 3–4 pcs | 177,64 lei | 5% (−9,35 lei/unit) |
| 5–10 pcs | 168,29 lei | 10% (−18,70 lei/unit) |
| 11+ pcs | 158,94 lei | 15% (−28,05 lei/unit) |
Solar MCCB Breaker 125A Safe DC 500V Protection
The 2P-125A solar MCCB circuit breaker is specifically designed for photovoltaic installations operating on direct current, where standard AC breakers do not provide adequate protection. With a rated voltage of 500V DC and a rated current of 125A, it ensures quick and safe circuit disconnection in case of overcurrent or short circuit. It is suitable for medium to large solar systems, lithium batteries, and electric vehicles.
What you get with this product
- Real protection for DC circuits — unlike AC breakers, this MCCB is designed to interrupt direct current without a persistent electric arc, protecting equipment and the installation
- 10kA breaking capacity — effectively intervenes even in the event of high short-circuit currents, preventing damage to inverters, batteries, or wiring
- Compatible with multiple system types — works in photovoltaic installations, lithium battery systems, and electric vehicles, without additional modifications
- Extended thermal resistance — operates correctly between -25°C and +70°C, including in panels exposed to high temperatures or cold environments
- 6kV impulse voltage — provides additional protection against transient overvoltages common in solar installations
- Mounting kit included — screws and terminal protection covers are provided, so the breaker is ready for installation without additional parts
How it works and how to install it
The 2P-125A MCCB breaker is mounted on a standard DIN rail or directly on the wall of the electrical panel using the screws included in the package. Connections are made to the terminals marked LINE (input) and LOAD (output), respecting the correct polarity of the DC circuit. Installation does not require special tools, but connection to an active photovoltaic circuit must be performed by a qualified electrician, in accordance with current regulations.
Frequently Asked Questions
Can I use a regular AC breaker instead of this DC MCCB?
It is not recommended. AC breakers are not designed to extinguish the electric arc generated by direct current, which can lead to device damage or fire. This MCCB is specifically built for DC applications.
Is it compatible with a 48V or 96V solar system?
Yes. The rated voltage of 500V DC represents the maximum permissible limit, so any system operating below this value is compatible, including 48V, 96V, or 120V systems.
Can this breaker be mounted on a standard 35mm DIN rail?
Yes, the housing is equipped with a clamping system compatible with a 35mm DIN rail, used in most residential and industrial electrical panels.
Technical specifications
| Model | CM1-125L/2300 |
| Brand | DALBi |
| Number of poles | 2P (bipolar) |
| Rated current (In) | 125A |
| Rated voltage (Ui) | 500V DC |
| Impulse voltage (Uimp) | 6kV |
| Magnetic trip current (Ir) | 10In |
| Breaking capacity | 10kA |
| Maximum operating temperature | +40°C (on front label) / up to +70°C |
| Minimum operating temperature | -25°C |
| Compatible applications | Photovoltaic panels, lithium batteries, electric vehicles |
| Mounting type | DIN rail / direct mounting |
| Included accessories | Mounting screws, terminal protection covers |
| Certifications | CE |
| SKU | Q-5A056 |
Warranty and Support
The product benefits from a 2-year legal warranty in accordance with current Romanian legislation. We accept returns of products within 30 days of delivery, without requiring a justification. Delivery is carried out quickly by courier, with dispatch confirmation and the possibility to track the parcel.
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