Re: starter solenoid pull in voltage

service@xxxxxxxxxxxxxxxx wrote:
Thanks for your reply John,

The reason I asked is I did a study with 2000pcs of 12V starter
solenoid. 1000pcs has pull in voltage of 4.5V and the other 1000pcs
has 6V. Both batch went through 420A in rush for 1ms.

A few of the 4.5V got stuck while none of the 6V got stuck.

I was thinking may be increasing the pull in voltage will increase the
in rush current that that starter solenoid can withstand.

A few out of 2000 is a pretty small sample. I can't imagine the mechanism that would couple pull in voltage and sticking, unless it is the return spring force (lower for the lower pull in voltage units, if everything else is similar). That spring force is what breaks the contacts apart after they spot weld.
.

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