DC MCB PI+ 25A 2POLE 500V

A DC MCB (Direct Current Miniature Circuit Breaker) is an automatic electrical switch that protects DC circuits from overcurrents and short circuits, commonly used in solar power systems, battery banks, EV chargers, and telecom equipment, unlike AC MCBs designed for alternating current. It works by interrupting power flow during faults, preventing damage, and can be reset manually after the issue is resolved, featuring distinct positive (+) and negative (-) terminals for correct installation in DC systems.

• Protection: Shields DC electrical devices and wiring from damage due to overloads (too much current) and short circuits.
• Application: Essential for systems using direct current, such as:
  • Solar Photovoltaic (PV) systems
  • Battery Energy Storage Systems (BESS)
  • Electric Vehicle (EV) charging
  • Telecommunications
• Operation: Contains thermal (for overload) and magnetic (for short circuits) trips, similar to AC MCBs, but designed for the continuous flow of DC.
• Installation: Must be connected correctly, matching the ‘+’ and ‘-‘ terminals to avoid failure during a fault.
• Resettable: Can be manually reset after a fault, unlike fuses.

• Overload Protection: A bimetallic strip heats up from continuous overcurrent, causing it to bend and trip the breaker.
• Short Circuit Protection: A sudden, large surge of current triggers an electromagnet, instantly tripping the breaker.
• Polarity Sensitive: Unlike AC MCBs, DC MCBs must be installed with correct polarity (marked + and -) to prevent failure. 

• Solar Photovoltaic (PV) Systems: Protects solar panels, battery storage systems, and related wiring from faults.
• Energy Storage Systems (ESS): Safeguards battery banks and DC distribution in energy storage setups.
• Electric Vehicles (EVs): Used in EV charging infrastructure and vehicle electrical systems.
• Telecom & Data Centers: Protects DC power supply units (PSUs) and control circuits.
• Industrial & Mining: Secures various DC equipment in heavy-duty environments.