Circuit Breakers in Bangladesh: MCB, MCCB, RCCB and Selection Guide
Explore AKIJ Electricals circuit protection solutions for homes, offices, shops and industrial applications. Understand the role of MCB, MCCB and RCCB products, then compare pole configuration, current rating, breaking capacity, sensitivity and installation requirements before selection. Always use qualified professionals for electrical protection design and installation.
How to Choose Circuit Protection
Circuit Breaker Buying FAQs
An MCB protects a circuit from overload and short circuit. An MCCB is used for higher current and larger installations. An RCCB helps protect against earth-leakage shock hazards; it does not replace overcurrent protection.
Select the rating based on the circuit design, cable capacity, expected load and applicable electrical standards. A qualified electrician should confirm the final rating.
Pole configuration indicates how many live conductors the device switches or protects, such as single-pole, double-pole or triple-pole arrangements.
Breaking capacity is the maximum prospective fault current a breaker can safely interrupt. Choose a device suitable for the installation’s fault level.
Frequent tripping can indicate overload, short circuit, a faulty appliance or wiring problem. Do not repeatedly reset it without identifying the cause.
Circuit protection should be selected, installed and tested by a qualified professional following local electrical requirements and the product instructions.