I left this message awhile back,
"Great thread, packed with good stuff
...but, most of this info on contactors & precharging is kinda old
Are there any updates, new products, concepts or procedures?
Now, that there is a lot more use & data available,
Are electronic contactors (solenoids) "really" necessary if you have a good quality, properly rated & easily accessible manual emergency power cut-off?
(could probably even mount a momentary switch in the housing & a precharge resistor across the terminals)
I have heard this is sometimes done in electric motorcycle racing because;
...the electronic contactors consume energy, where the manual ones won't
...& they are just another electronic component, in the loop, to "potentially" fail
Is there a reason that the speed controller needs to be able to cut the main power to itself?"
I never heard any response, so I'll ask here:
What are the pros & cons of an electronic contactor over a mechanical contactor?
Has anyone designed a safe & reliable mechanical contactor?
Why does it have to be electronic?
..why not springs?
* I was thinking, kinda, like a mouse trap.
Hit a manual button or switch & BAM it snaps shut (or open in this situation) & breaks the connection
...so, I made one
It's "remedial" but, it's to experiment with & maybe help continue the conversation