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The highest rating of Triple pole with Neutral (TPN) MCB main switches available in the local market is _______.
- a)126 A
- b)189 A
- c)252 A
- d)63 A
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
The highest rating of Triple pole with Neutral (TPN) MCB main switches...
A triple pole with a Neutral (TPN) Miniature Circuit Breaker:
- It is used to protect the circuits from short circuit faults. It is used in the place of the fuse.
- When the amount of electricity is increasing in wire, the MCB turns off and the result is it breaks the circuit.
- It prevents from burning of home appliances.
- The current rating of single-pole Triple pole with Neutral (TPN) MCB main switches available in the local market is 63 A.
Additional Information
A miniature circuit breaker (MCB):
- It automatically switches off the power supply during overload and faults.
- This function of automatic switching is accomplished by a bimetallic strip.
- Whenever continuous overcurrent flows through MCB, the bimetallic strip is heated and deflects by bending.
- This deflection of the bimetallic strip releases a mechanical latch.
- As this mechanical latch is attached to the operating mechanism, it causes to open the miniature circuit breaker contacts, and the MCB turns off thereby stopping the current to flow in the circuit.
Most Upvoted Answer
The highest rating of Triple pole with Neutral (TPN) MCB main switches...
Triple pole with Neutral (TPN) MCB Main Switches
Triple pole with Neutral (TPN) MCB main switches are commonly used in electrical distribution boards to provide protection against overloads and short circuits. The highest rating of TPN MCB main switches available in the local market can vary depending on the brand and model.
Answer Explanation
Correct Answer: 63 A
- The correct answer is option 'D' which represents a 63 A rating for the highest TPN MCB main switches available in the local market.
- This rating signifies the maximum current capacity that the switch can handle safely without tripping or malfunctioning.
- It is important to select the appropriate rating of the MCB main switch based on the electrical load requirements to ensure proper protection and functionality of the electrical system.
- Higher rated switches may be available for specific industrial or commercial applications where higher current capacities are needed.
In conclusion, when choosing a TPN MCB main switch, it is essential to consider the maximum current requirements of the electrical system to select the appropriate rating for safe and reliable operation.
Triple pole with Neutral (TPN) MCB main switches are commonly used in electrical distribution boards to provide protection against overloads and short circuits. The highest rating of TPN MCB main switches available in the local market can vary depending on the brand and model.
Answer Explanation
Correct Answer: 63 A
- The correct answer is option 'D' which represents a 63 A rating for the highest TPN MCB main switches available in the local market.
- This rating signifies the maximum current capacity that the switch can handle safely without tripping or malfunctioning.
- It is important to select the appropriate rating of the MCB main switch based on the electrical load requirements to ensure proper protection and functionality of the electrical system.
- Higher rated switches may be available for specific industrial or commercial applications where higher current capacities are needed.
In conclusion, when choosing a TPN MCB main switch, it is essential to consider the maximum current requirements of the electrical system to select the appropriate rating for safe and reliable operation.
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