Name: (Circuit Breakers and Short Circuit Protection - A GalcoTV Tech Tip)
Uploaded: 2021-01-14T05:43:15.000Z
Duration: 1 min 17 s
Description: 【看影片學英語】數萬部 YouTube 影片，搭配英漢字典即點即查，輕鬆掌握單字發音與用法，長久累積看電影不必再看字幕。

Hi I’m Katie with your Galco TV tech tip! When sizing up a circuit breaker there are

a few necessary features to look for such as voltage class, current rating, tripping

method, tripping characteristics, and short circuit protection capabilities. The current

rating is maximum current allowed to flow to the load. A circuit breakers’ short circuit

breaking capacity will be much higher than its current rating, and indicates how much

fault current the circuit breaker can safely interrupt and switch to an off position in

the case of a short circuit. Improper sizing of a circuit breaker could result in nuisance

tripping, or in the case of an improper short circuit withstand rating, fault current could

jump the internal contacts of a breaker, causing catastrophic failure. To find out more about

circuit breakers, check out our other videos on Galco TV.