Leviton NRD 8000 Cooling Fan

[SpencerPerry]

I have some old Leviton NSI NRD 8000 dimmer packs. The fan on one of the packs has started making a buzzing sound like the fan is soon going to die. Does anyone know which specific fan are used in these packs so that I can try and replace it? I've opened up several of my dimmer packs and none of them have any labels on the fans, just a randomized serial number.

Thanks

 

[microstar]

You could try Leviton NSI tech support at 1-800-824-3005, Option 2 in Tualatin, OR or the parts department at Full Compass Systems at 1-800-5844 option 2.
Probably a standard size fan... I would just measure H x W x depth and meter the voltage going to it, 5, 12, or 24 volt probably. Mouser, Digikey, or eBay will have it.

 

[brucek]

If I remember correctly (it is NOT listed in the service manual dated Feb 1997) it is a line voltage fan....so that the fan is always running when the dimmer has power.

 

[FMEng]

Most electronics fans are common sizes and mounting, and the CFMs are similar for a given form factor. Chances are, you can open up the beast, get a look at the label and take measurements and find a replacement that will fit like a glove.

 

[SpencerPerry]

So I called Leviton to at least get the part number for the fan since the label wasn't on the fan inside my dimmer rack. However the original fan (NMB 3115PS-12W-B30-A00) is no longer manufactured. Digi-key recommended a Qualtek FAA1-08025NBMW31 which has a slightly smaller RPM (2500 vs 3100) and slightly less air pressure (0.118 vs .216 in H20) or a Orion OA825AP-11-1WB which uses slightly more power (9w vs 5w) and is slightly wider (27mm vs 25mm). Which substitute fan would people recommend I get?

Original:

https://www.digikey.com/en/products/detail/nmb-technologies-corporation/3110PS-12W-B30-A00/740229

Digi-Key Substitutes

https://www.digikey.com/en/products/detail/qualtek/FAA1-08025NBMW31/2599971

https://www.digikey.com/en/products/detail/orion-fans/OA825AP-11-1WB/2620998

 

[almorton]

Any 115v 80mmx25mm fan that shifts the same (or more) cubic ft per minute would do the trick.

 

[FMEng]

More power generally means more CFM. More CFM never hurts. It is doubtful that 2 mm would cause a clearance problem.