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Electronics => Beginners => Topic started by: redgear on July 16, 2020, 06:00:48 pm

Title: Will this relay work for my requirements?
Post by: redgear on July 16, 2020, 06:00:48 pm

I am trying to drive a 6A reactive load(power factor 0.6, crest factor 1.85) using a DC relay. Either 12v or 5v.
I found this relay on digikey (https://www.digikey.com/product-detail/en/1558672-1/PB2425-ND/8345185?TEdistID=2186816674&utm_source=oemsecrets&utm_medium=aggregator&utm_campaign=buynow): DATASHEET (https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=T9G_1216&DocType=DS&DocLang=English)
Will this suit my requirements?

Thanks

Title: Re: Will this relay work for my requirements?
Post by: bob91343 on July 16, 2020, 07:30:25 pm

I don't see any reactive load specifications.  So it's a crap shoot.  Best to contact the relay manufacturer and ask.

Title: Re: Will this relay work for my requirements?
Post by: cliffyk on July 16, 2020, 09:19:23 pm

It's rated at 20 A for use with a 277 VAC lighting ballast--should be fine for your application:

(http://www.paladinmicro.com/TestEquipment/RelaySpecs-00.jpg)

Title: Re: Will this relay work for my requirements?
Post by: floobydust on July 16, 2020, 10:28:13 pm

OP is being a jerk, his 8-page cross-posted thread https://forum.allaboutcircuits.com/threads/critique-my-schematic.171272/page-8 (https://forum.allaboutcircuits.com/threads/critique-my-schematic.171272/page-8) he says he needs a 4-pole relay  :palm:

Title: Re: Will this relay work for my requirements?
Post by: redgear on July 17, 2020, 03:02:23 am

Quote from: cliffyk on July 16, 2020, 09:19:23 pm

It's rated at 20 A for use with a 277 VAC lighting ballast--should be fine for your application:

(http://www.paladinmicro.com/TestEquipment/RelaySpecs-00.jpg)

Quote from: bob91343 on July 16, 2020, 07:30:25 pm

I don't see any reactive load specifications.  So it's a crap shoot.  Best to contact the relay manufacturer and ask.

Thanks.

Quote from: floobydust on July 16, 2020, 10:28:13 pm

OP is being a jerk, his 8-page cross-posted thread https://forum.allaboutcircuits.com/threads/critique-my-schematic.171272/page-8 (https://forum.allaboutcircuits.com/threads/critique-my-schematic.171272/page-8) he says he needs a 4-pole relay  :palm:

I am looking for replacing the 4-pole relay as they are very expensive

Title: Re: Will this relay work for my requirements?
Post by: cliffyk on July 17, 2020, 03:25:48 am

Lighting ballasts are commonly reactive loads. Even those in the fluorescent lights in your garage...