eksmaster
Effective immediately ALLTRAX will replace the SPM48300 with the SR48300. There is no difference in the two units other than design and now the fan is an option.
alltrax sr48300.jpg
Life is what happens to you while you're planning on doing something else.
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garolittle
I have the SR48300 for my project. Fits perfectly under the steering area. 
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AirGar
Just checking but it looks like the SPM48300 has a 210 amp continuous spec but the SR48300 only has a 125 amp continuous spec. See table above. This is also the same number I see on the site when I looked at it today. With the 10kW limit on the 48V battery packs won't we be over 125 amps a lot and be up near the 5 min limit of 230 a lot? Maybe these are very conservative continuous specs and this is not an issue in the real world. 

I copied this from the Alltrax site.
Model (1)

 

Peak (Amps)2-Min (Amps)5-Min (Amps)60min +

(Amps)

SPM48200200/225 (2)200150125
SPM48200200/225 (2)200150125
SPM48300300/350 (2)300 (1.5min)230210
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AirGar
Well this is interesting. I just downloaded the SR48300 manual from the Alltrax website and it shows the same continuous spec shown in the manuals as was posted on the SPM48300.. Maybe the tech sheet above and the website have "old info" on them and the updated the manual to reflect the actual product!
Sorry for any confusion. 
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