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Timeline for Relay current flow

Current License: CC BY-SA 3.0

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Mar 28, 2018 at 0:40 vote accept H. Jenkins
Mar 26, 2018 at 19:24 comment added jsotola voltage spike will occur causing arcing on switch contacts .... it does not refer to the relay contacts in your diagram ... if you used a smaller relay, instead of the transistor, to drive the main relay, then the note about arcing would refer to the contacts of the smaller relay ... arcing would happen because of the inductive load of the bigger relay coil
Mar 26, 2018 at 18:56 comment added Harper - Reinstate Monica They say "don't do this bit" because that relay would need to be listed as equipment (not components) in mains power switching. The UL listing on a relay from Mouser is a "component" listing, not sufficient. Contrast with a RiB relay, which starts with a listed component, but packages it to work in mains wiring methods, and has achieved UL listing as equipment for direct mains use. I wish someone would make more stuff like this for the Raspberry Pi'ers of the world.
Mar 26, 2018 at 18:30 history edited Transistor CC BY-SA 3.0
Removed "Question about" from the title. Of course it's a question - just state the topic.
Mar 26, 2018 at 17:48 answer added D.A.S. timeline score: 1
Mar 26, 2018 at 17:36 answer added Wouter van Ooijen timeline score: 1
Mar 26, 2018 at 17:30 history edited H. Jenkins CC BY-SA 3.0
deleted 6 characters in body
Mar 26, 2018 at 17:24 history asked H. Jenkins CC BY-SA 3.0