Hot Tub Power Supply - In Need of Comparable Relay

[grimacelord]

I have a power supply board to a hot tub that a customer brought in to me. He says that one of the relays on it is bad. He can hear it click and it does appear to be damaged visibly. I am having trouble sourcing the part because everywhere I have looked is out of stock due to the part being obsolete now.

I was wondering if anyone here could recommend a substitute that would work. I'll give you all of the info I have on it.

Part Number: ALF1TF12

Datasheet: https://cdn.badcaps-static.com/pdfs/...35596d7749.pdf



Contact Arrangement: Form 1 A

) Compressor load: 20A 250V AC
2) Inverter load: 20A 100V AC,
10A 200V AC
2. High insulation resistance
• Creepage distance and clearances
between contact and coil;
Creepage Min. 9.5mm
.374inch
/
Clearance Min. 8mm
.315inch
• Surge withstand voltage: 10,000V

I appreciate any help I can get. Thanks.

[R_J]

Re: Hot Tub Power Supply - In Need of Comparable Relay

https://www.digikey.com/product-deta...2633-ND/645563

Digikey # 255-2633-ND Mfgr# ALF1T12
Or drop the (f) and mouser also has it, none of the datasheets say anything about the (F), so what the F

[CapLeaker]

Re: Hot Tub Power Supply - In Need of Comparable Relay

https://www.digikey.com/product-deta...2633-ND/645563

Digikey # 255-2633-ND Mfgr# ALF1T12
Or drop the (f) and mouser also has it, none of the datasheets say anything about the (F), so what the F

lol

[budm]

Re: Hot Tub Power Supply - In Need of Comparable Relay

'F' is the UL Class F insulation.
I.E.:

[sam_sam_sam]

Re: Hot Tub Power Supply - In Need of Comparable Relay

'F' is the UL Class F insulation.
I.E.:

Thanks for posting this information

[grimacelord]

Re: Hot Tub Power Supply - In Need of Comparable Relay

https://www.digikey.com/product-deta...2633-ND/645563

Digikey # 255-2633-ND Mfgr# ALF1T12
Or drop the (f) and mouser also has it, none of the datasheets say anything about the (F), so what the F

Originally Posted by budm
'F' is the UL Class F insulation.
I.E.:

Thanks guys. So even without the UL Class F, should the relay you linked me to work R_J? Budm?

[sam_sam_sam]

Re: Hot Tub Power Supply - In Need of Comparable Relay

Maybe

It might not last as long as would ( F ) type one

[R_J]

Re: Hot Tub Power Supply - In Need of Comparable Relay

I see no reason why it would'nt, It does appear to be Coil insulation class F. UL Class F
I don't see what choice you have if the original part is obsolete. Does the board have a layout where an alternative type of relay could be installed?

[grimacelord]

Re: Hot Tub Power Supply - In Need of Comparable Relay

Just wanted to report back -

I ordered the relay suggested and it worked. Successful repair. Thanks again, guys! This forum is the best.