I too have used the SB-50 power pole connectors and they are GREAT ! All of my DC stuff here is standardized around the SB-50's
I have installed them on my Son's big John Deere tractors to power accesory equipment, on his dairy farm Nortel uses the SB-50's (Black) on their fibre equipment and access nodes. This eq. runs on -48 volts The 30 amp units at times seem to have a somewhat weaker spring and recently I had some that were made by AMP and the spring in them seemed to be quite a bit stiffer....made the connectors harder to pull apart. Soldering these 30 amp units can cause problems if solder or flux moves down on to the surface of the blade....so I only crimp them now and no further problems with that. The crimp tool from West Mountain Radio works great for the 15, 30 & 45 amp connectors...AES handles this tool...I just pick up one in Orlando, cost just under 50 dollars. 73 John VE3AMZ Waterloo Ontario. ----- Original Message ----- From: "Paul Metzger" <[EMAIL PROTECTED]> To: <Repeater-Builder@yahoogroups.com> Sent: Saturday, March 24, 2007 11:31 AM Subject: Re: [Repeater-Builder] Re: Power-Pole connectors NOT for power >I second that. > > I myself have found these little power pole connectors (which are > recommended by emergency groups) to be a bit too delicate for me. And > if improperly built, will have little or almost no contact tension at > all. Honestly I was a little shocked when I started seeing these > little buggers marketed for emergency amateur radio purposes. The > bright side I see in that is everyone can connect with minimal fuss. > But if the connectors were improperly built, I wouldn't be surprised > to see a few of these tapped up during a real disaster in order to > keep them from falling out of their other mating half. > > For years, I myself have utilized the larger SB 50A Anderson > connectors on my primary Amateur Radio (TS-450 / IC-910) and Solar > system at my home QTH. Now try and pull those babies apart. Talk > about contact tension. You can't accidently tug on you power harness > and pull these apart. > > One more thing, my jaw dropped when I had built my K2-100W. It uses a > chassis mount variant of the tiny power pole connectors out from the > rear of the unit. > > Well, just my two cents. > > Paul Metzger > K6EH > > > ------------------- > > > On Mar 24, 2007, at 06:42, Tedd Doda wrote: > >> On Fri, 23 Mar 2007 23:01:17 -0000, skipp025 wrote: >> >>> I try not to use the small powerpoles any more.. the smaller made >>> power-poles don't have adequate contact tension/pressure and have >>> been real trouble makers for me. >> >> *Smaller* being what Skipp? I've had excellent results using >> the 30 amp contacts on equipment that pushes the current >> rating of these to the limit (and then some). >> >> Tedd Doda, VE3TJD >> Lazer Audio and Electronics >> Baden, Ontario, Canada >> >> www.ve3tjd.com (personal) >> www.eraradio.ca (Linked repeater system) >> >> >> >> >> >> >> Yahoo! Groups Links >> >> >> > > > > > > > Yahoo! Groups Links > > > >
