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How to calculate inrush current rating?

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Tim Hewitt

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I have a 24VDC Coil with 26.8ohm resistance and Inductance of 1.69. It's a contactor coil but can't find the inrush current rating. Can someone tell me how to calculate it with the above info?
 

Re: Inrush Current

Hi,
Being an inductor, it opposes the initial current flow and the final current will be 24V÷26.8Ω. The current rises from zero to this final value with a time constant of R/L secs. So there will not be an in rush current for an inductance.

Regards,
Laktronics
 

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