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ka of mccb=transformer(KVA)x100/1.732xsecondary voltagex%impedence of transformer

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13y ago

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What is the meaning of Ka for mccb selection?

Killo ampere


What is the highest rating in amperes of Mccb?

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100 kw is the load and what is the MCCB rating?

thanks ,it should be 400amps.


What is the advantage of a MCB over MCCB?

MCCB is actually the need to understand MCB is clear to most of the users.MCB is for low current interruptions and has fixed current rating for trip. It will not trip at earth fault. It has low KA rating, it is suitable for simple over current application, less than 100 Aand has low cost.MCCB (Molded case C.B) is for high current application normally above 100 A and also programmable/adjustable for earth fault, over/under voltage protections etc. It has high KA ratings,hence costly.Engrs-ift@hotmail.com


How can calculate ka rating?

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The KA rating, or short-circuit withstand strength, of a specific panel such as the P1E3ONB125CTS can vary based on its design and manufacturer specifications. To find the exact KA rating for this panel, it’s best to consult the technical documentation provided by the manufacturer or contact them directly. If you have access to the panel's datasheet, it should list the KA rating clearly.


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What is difference between TPN Mccb and 4P Mccb?

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What is kA rating?

The kA rating, or kiloampere rating, indicates the maximum short-circuit current that a device, such as a circuit breaker or fuse, can safely interrupt without being damaged. It is a crucial parameter in electrical systems, ensuring the protection of equipment and personnel during fault conditions. A higher kA rating signifies that the device can handle larger fault currents, making it suitable for more demanding applications. Proper selection of kA ratings is essential for system reliability and safety.


What happened to the video game rating KA?

It was replaced by "Everyone" in 1998.