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Hi. Thanks for the comment. There is no default time setting. The specific application dictates the setting.

@@trainingtogocom thank you so much

Hi. Thanks for viewing. The answers to your questions are related to NEC and Local codes. The video I created was to show the various types of electrical fittings available. Perhaps you can check with your local Electrical Inspector for more specifics. Please share this video with your colleagues.

Glad you like them! Try some of the other videos on our channel. I’m sure you will enjoy them. Tell your colleagues and be sure to subscribe. Thanks again.

ETI in Maryland Builds these. Here is a link. etiprecision.com/product/pi-6000-mobile-circuit-breaker-test-set/

You are welcome Bud. Please subscribe to my channel and ask your colleagues to also subscribe.

Good question. I researched it and here is the short answer to your question: Regarding your specific question, when a 100% rated breaker requires the use of 90°C rated conductors sized at their 75°C ampacity, it typically means you start with the 75°C ampacity values based on the terminations and then apply any necessary derating factors according to NEC requirements. You wouldn't normally directly use the 90°C ampacity values unless all conditions are met to do so, including derating considerations. I welcome any other responses to this question from the community. Thanks for viewing be sure to subscribe to my channel.

@@trainingtogocom can you provide any resources that confirm this? I have looked at every UL standard and manufacturer data bulletin I can get my hands on and nothing directly addresses this. My thought is that I should take the directions printed on the breaker at face value to make sure that 110.3(B) is complied with. But I’m not 100% confident that this requirement totally jives with the NEC’s allowance of a conductor’s 90°C ampacity to be used with a temp correction and/or ampacity adjustment gets the 90°C derated ampacity below said conductor’s 75°C ampacity.

Hi RB Here is the document that I based my training on. www.eaton.pl/ecm/groups/public/@pub/@electrical/documents/content/ap01200008e.pdf I know that UL is pretty specific in their standards and manufacturers need to conform. My feeling is that if a manufacturer puts a 100% rated label, they are complying with the standard. Therefore the instructions supplied with the breaker and breaker label warnings need to be adhered to. I hope this helps.

Hi Art. Thanks for the comment. I am not sure I understand your question. Please double check the math and remember to include Feeder 2. The goal of the video is to show that utilizing 100 percent rated breakers in the right application could possibly save money on bus, cables, and may allow use of a smaller size breaker even though 100% breakers are premium priced.

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Thank you.

Glad you think so. Please be sure you are subscribed to my channel for more videos. Thanks

Hi Francisco. At the end of the RUclips video there is an explanation. The certificate is only available from the on-line course. The link is mentioned in the RUclips video.

we will take your exam first??

In most cases you will need a ground fault simulator to inject ground fault current. Most secondary test kits from circuit breaker manufacturers have this setting. It is also a good idea to check the manufacturer's specific requirements for testing for ground fault. Thanks for the question. Please subscribe to my channel for further videos. Also please recommend my channel to your colleagues.

Thanks for your question Vilayattu. The physical size of the current carrying contacts make it difficult to operate manually as you would with a molded case breaker. In addition, the springs allow for a quicker trip, allowing the breaker to clear any fault. Thanks again. Please subscribe to my channel as I will be adding more electrical training videos.

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Thanks Azeem for your comment. To my knowledge a full charge allows OCO. After a OC the spring could be recharged.

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You're welcome

Thank you for the comment. Please recommend the training to others.

You are welcome. I hope you found it useful. Please let your friends and colleagues know about it.

ABB makes a very good product. With technology shifting to electronic trip units other manufacturers are able to supply similar offerings. Thanks for looking at my video. Please check out my other videos and let me know if I can supply training for your group.

I think that Allen-Bradley makes quality control products but Eaton has a complete line of circuit breakers. Thanks for the kind words. Check out my other electrical product training at tsandc.com/elearning/

Thanks for commenting. Please see my other electrical product videos.

I am glad yo like the preview. Be sure to checkout our complete line of training at tsandc.com/elearning/