Explore High-Quality MCBs for Reliable Electrical Protection

Protect your space from overloads or short circuits with Polycab MCBs—a vigilant guardian of your electrical appliances. These are high-quality safety devices that can help protect your electrical circuit from overcurrent that may be caused by a short circuit, overload, or faulty power distribution. Whether you are looking for a high short circuit breaking capacity MCB of 10kA or simply a 6kA MCB, we have one for every electrical requirement.

Top MCBs: Ensure Safe and Efficient Circuit Protection

At Polycab, you can explore a variety of high quality MCBs, each crafted to ensure safe and efficient circuit protection. Our MCBs differ in terms of:

• Ampere: Different amp ratings make them suitable for different applications. For instance, a 6A MCB might be perfect for standard lighting systems, whereas a 63A MCB would be an ideal choice for high-powered loads. At Polycab, you can find MCBs ranging from 0.5A to 63A.
• Pole: The number of poles in an MCB represents how many live wires it can protect. At Polycab, you can find MCBs with a variety of poles such as SP, SPN, DP, TP, TPN and FP.
• Breaking Capacity: MCB's breaking capacity is the highest fault current it can interrupt to keep the load safe and without MCB getting damaged. At Polycab, we have got you covered with MCBs having breaking capacities of 6kA and 10kA.
• Curve: MCBs have different tripping curves that indicate the breaker's sensitivity to instantaneous overcurrent. At Polycab, there are MCBs with standard B, C, and D curves as per IS/IEC 60898-1.

Choose the Right MCB and DP MCB Box

To choose the right DP MCB Box, you must first understand its key specifications and evaluate your needs. Here's how to make the right choice:

• Consider the Current Rating: Select an MCB with a rating that matches your circuit's load. An underrated MCB will trip frequently, while an overrated one will not provide adequate protection.
• Tripping Curve: You must choose the right curve based on the application. For instance:
  • B-Curve is an ideal choice for homes and light commercial use (heaters, lamps). It trips at instantaneous current between 3-5 times of the rated current.
  • C-Curve is suitable for industrial setups with moderate surges and trips at instantaneous current between 5-10 times of the rated current.
  • D-Curve is a perfect choice for circuits with high inrush currents (motors, transformers) and trips at instantaneous current between 10-20 times of the rated current.
• Breaking Capacity: You must ensure that the MCB's breaking capacity exceeds the maximum fault current in your system. They are rated in kA, having options that include 6 kA, and 10 kA breaking capacities.
• MCB Pole Types: You must match the number of poles to your circuit with 1-Pole protecting a single live wire (residential use), 2-Pole covering two live wires (commercial/industrial use), 3-Pole used in three-phase industrial applications, and 4-Pole protecting four live wires in large-scale setups.
• Voltage Rating: You must ensure the MCB's voltage rating suits your system. You can count on 240V MCBs for single-phase residential circuits and 415V MCBs for three-phase commercial and industrial applications.
• DP MCB Box: Polycab offers Plastic and Metal MCB box/enclosures for distribution. You can choose depending on your budget. Typically, consumers prefer to install plastic MCB box/enclosure for usage in residential application due to ease of installation and corrosion resistance; and Metal MCB box/enclosure for industrial/harsh environments usage as it offers high durability and heat resistance<.

Remember, choosing the right MCB and DP MCB Box will help safety, efficiency, and reliable circuit protection.

MCBs for Every Home and Industrial Use

At Polycab, we strive to bring you a collection of electrical components that are efficient, reliable, and durable to create a safe electrical system in your residential, commercial, or industrial space. Our MCBs are designed with features like easy DIN extraction, positive contact position indication, finger-proof terminals (IP20), air flow channels, high-quality contact tips, line-load reversibility, and more, ensuring expert protection from short circuits, overloads, and faulty power distribution. So, if you are looking to buy MCB, Polycab is the one to count on.

MCB – FAQs

1. What is an MCB (Miniature Circuit Breaker), and why is it Important?

   An MCB, or miniature circuit breaker, is a modern alternative to a fuse, playing a crucial role in the efficiency and safety of your electrical system. It is important because it is responsible for automatically breaking the circuit during overload or short circuit conditions, which further helps in preventing wire damage and fire hazards. What makes them stand out? Unlike fuses, an MCB is reusable.

2. What are MCBs used For?

   MCBs are used for protecting your electrical system and equipment against overloads and short circuits. Different MCBs are used for different applications, such as in standard lighting systems, boilers, high-powered load, etc.

3. How Do I Choose the Right MCB?

   To select the right MCB, first calculate the circui's total load to determine the suitable MCB rating. Then, select the tripping curve to the load type (resistive, inductive, or motor-based). For surge-prone areas, choose an MCB with a higher breaking capacity.