What is the difference between B Type and C Type MCB?

What is an MCB?

An MCB (Miniature Circuit Breaker) is a safety device used to protect electrical circuits from overloads and short circuits. It trips automatically to disconnect the power when it detects a fault.
Now, let’s understand the difference between B Type and C Type MCB and which one suits your needs.

B Type vs C Type MCB:

B Type MCB

• Trips when the current exceeds 3 to 5 times the rated current.
• Ideal for setups with Resistive loads, like Light, Fans, Heaters, Iron, Microwave, Water Filter, TV, Hair Dryer etc.
• Suitable where inrush current is low.

C Type MCB

• Trips when the current exceeds 5 to 10 times the rated current.
• Designed for setups with Inductive loads, such as Refrigerator, Air conditioners, Washing Machine, Mixer Grinder, etc.
• Handles higher inrush currents without tripping unnecessarily.

Key Differences at Glance 

How to Choose Right MCB?

1. Home Use:
   • Go for B Type MCB for smaller appliances.
   • Use C Type MCB for ACs, Refrigerators, Washing Machines.
2. Industrial Use: Opt for C Type MCB for machinery and equipment with higher inrush currents.

Quick Tip:
Always consult your trusted professional electrician to pick the right MCB for your needs to ensure safety and efficiency.

Pressfit SFT1 MCB – The Right Choice for Protection:

For round-the-clock circuit protection, trust Pressfit’s SFT1 MCBs. Proudly made in India, these MCBs offer:

• High breaking capacity of 10kA
• Overload and short-circuit protection
• IS/IEC 60898-1 compliance

Conclusion:
Both B Type and C Type MCB play a crucial role in electrical safety. While B Type MCBs are ideal for homes, C Type MCBs offer extra protection for devices with high starting currents.
Choose Pressfit for reliability, performance, and peace of mind.

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