VIOX manufactures DC circuit breakers for photovoltaic, battery-storage and industrial DC distribution, with miniature and molded-case ranges selected around the system voltage, current and fault level.
Compare miniature and molded-case DC circuit breaker references, then confirm voltage, current, poles, breaking capacity, trip characteristics and the controlled order code with VIOX.
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03VIOX DC circuit breakers combine compact MCB protection with higher-current MCCB feeder protection in one coordinated product family.
Use these values for initial sourcing. Final ratings and order references are confirmed in the approved quotation.
| Reference | Available range | Selection note |
|---|---|---|
| Product types | DC MCB and DC MCCB | Choose the breaker platform around current, fault level and installation format. |
| Rated voltage | Up to 1000 V DC by model and pole configuration | Confirm the maximum operating voltage and circuit arrangement. |
| Rated current | Model-dependent miniature and molded-case ranges | Coordinate the breaker rating with conductor and load requirements. |
| Pole configurations | 1P, 2P, 3P and 4P references | The permitted DC voltage depends on the selected model and pole arrangement. |
| Breaking capacity | Model-dependent | Verify the prospective short-circuit current before selection. |
| Standards | IEC / GB references by model | Use the controlled datasheet and certification evidence for final confirmation. |
Final suitability should be confirmed against the electrical design, protection study and local requirements.
Overcurrent and short-circuit protection for photovoltaic strings, combiner outputs and inverter-side DC distribution.
Protection and manual isolation references for battery strings, auxiliary circuits and supporting DC distribution.
DC protection references for charging equipment and related distribution assemblies, subject to the system design.
Circuit protection for control power, transport, telecom and industrial DC distribution applications.
VIOX supports product marking, private labels, packaging and controlled order documentation. Electrical ratings, accessories and certification requirements are reviewed against the target application and market before the order code is confirmed.
Electrical ratings, application conditions and product configuration are reviewed before quotation.
The selected reference, available options and controlled documents are aligned to the order.
Private labeling, product marking and packaging requirements can be reviewed for repeat supply.
Confirmed product identity, quantity and documentation move into controlled production and inspection.
Start with the maximum system voltage, continuous current, prospective short-circuit current, pole arrangement, load characteristics and applicable standard. Confirm the final selection against the controlled model datasheet.
A DC MCB is generally used for lower-current modular circuits, while a DC MCCB supports higher-current applications and model-dependent protection or accessory options. The system ratings determine the appropriate platform.
Yes, when its DC voltage, current, breaking capacity, pole arrangement and environmental requirements match the photovoltaic circuit. AC-only ratings must not be assumed to apply to DC.
Polarity behavior is model-specific. Some references use polarity-free designs, while other DC interruption arrangements require defined wiring. Follow the selected model datasheet and approved wiring diagram.
OEM product marking, private labels, packaging and supporting order documents can be reviewed during quotation and order-code confirmation.
08 / Knowledge / DC Circuit Breaker
