MCCB AC BREAKERS

MCCB AC BREAKERS

An AC MCCB (Molded Case Circuit Breaker) is used to protect electrical systems against overloads and short circuits in low-voltage AC installations. It is commonly installed in main distribution boards for buildings, factories, commercial facilities, and large solar inverter AC outputs. AC MCCBs handle higher current loads than MCBs and provide reliable, resettable protection for critical power circuits.

Technical Details

• Breaker Type: AC MCCB (Molded Case Circuit Breaker)

• Application: Main distribution boards, inverter AC output, commercial and industrial power systems

• Voltage Rating: Typically 230V / 400V / 415V AC (model dependent)

• Current Rating: Commonly 63A – 1600A (varies by model)

• Number of Poles: 2P / 3P / 4P

• Breaking Capacity: High short-circuit breaking capacity (e.g. 25kA – 50kA or higher)

• Trip Protection: Thermal protection (overload) + magnetic protection (short circuit)

• Mounting Type: Panel-mounted

• Operation: Manual ON/OFF with clear trip indicator

• Adjustability: Fixed or adjustable trip settings (depending on model)

• Construction: Molded, flame-retardant housing

• Standards: IEC 60947-2 compliant

• Typical Use: Main incomer breaker, feeder protection, generator and inverter AC protection