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What is Max. Allowable Power Force?

Braiden

Oct 23, 2021
2
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Oct 23, 2021
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2
Hello,

I am currently looking into the Datasheet of a SRD-05VDC-SL-C relay (https://www.circuitbasics.com/wp-content/uploads/2015/11/SRD-05VDC-SL-C-Datasheet.pdf) because i want to use it to control an heating element (230V, 1kW).
On the first glance everything looked fine as the relay can handle 7A with 240VAC.
But than I found the parameter Max. Allowable Power Force (240W) and I really don't know what to make of this. Is it the maximum power the relay can switch? If so, isn't the 7A with 240VAC kind of misleading?

greetings and thanks in advance
Braiden
 

Bluejets

Oct 5, 2014
6,072
Joined
Oct 5, 2014
Messages
6,072
Little relay like that will last about as long as it takes to solder it in circuit.
Contact rating is 240w.
Use a contactor designed for the job.
 

Braiden

Oct 23, 2021
2
Joined
Oct 23, 2021
Messages
2
Thanks for the replies.
So the Max. Allowable Power Force really is the power a relay can switch? In which aspects do the 7A with 240V help than? If it would be the maximum current that is allowed to flow why differentiate between resistive load and inductive load?
 
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