MalMac 1,328 #1 Posted May 24, 2012 I have got to replace a hour meter and I have found good replacements but I do not know what the VDC number means. it appears that the number is a range of some sort. Example would be say 30-80VDC. I think the one that came off the tractor was 4-40VDC. Almost think it's a volt or amp range. Anyway anybody know? Share this post Link to post Share on other sites
Forest Road 594 #2 Posted May 24, 2012 That's Volts DC. Share this post Link to post Share on other sites
BOWTIE 226 #3 Posted May 24, 2012 HELLO, THE VDC STANDS FOR( VOLTS) -DC IS (DIRECT CURRENT). YOU NEED ONE FOR 12 VOLT DC POWER SUPPLY. TRACTORS,CARS ARE DC POWER AND HOME CURRENT IS AC (ALTERNATING CURRENT). . BOWTIE IN OHIO Share this post Link to post Share on other sites
Save Old Iron 1,564 #4 Posted May 24, 2012 it appears that the number is a range of some sort.. I think the one that came off the tractor was 4-40VDC. The VDC range is the range of DC volts you can hook the gauge to and have it RELIABLY keep correct count of hours run. 4-40 means it will function properly hooked up to 6 volt thru 36 volt systems. 30-80 VDC will probably not work in a 12 volt tractor. It would work in a 36 volt forklift or mobility chair application. Share this post Link to post Share on other sites
MalMac 1,328 #5 Posted May 24, 2012 Thanks everyone for the replies. I kinda thought what was stamped on there was the volt range but not knowing a whole lot about it. I thought I would put it out there for a answer from those of you who know. Share this post Link to post Share on other sites
