![]() How do you find the kA rating of a circuit breaker? Similarly one may ask, what does 6kA mean on a circuit breaker?Ī value of 6kA means that the circuit breaker can withstand 6,000 amps of current under fault conditions during the brief time it takes to trip the Circuit Breaker. kA rating is known as the short circuit withstand capacity or ultimate breaking capacity of a circuit breaker. ![]() If the current exceeds this value the circuit breaker could be damaged. One may also ask, what is kA rating in Mccb? kA rating is the maximum current an MCB can safely interrupt in case of a short circuit. The 20 on the actual switch itself means that the breaker should trip at a load of 20 amps. ![]() The 10ka written on the breaker is the maximum load the breaker can interrupt during a short circuit and it means 10,000 amps. This is also known as AIC (Amps Interrupting Current).Īlso asked, what does 10ka mean on a circuit breaker? The kA ( kilo amps) rating of any circuit breaker is the absolute maximum amount of current it can safely interrupt at its rated voltage.
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