Joe Gwinn <joegwinn@comcast.net> wrote in news:uifcbhhdi5t5mm9facm0ahr067dicvt35l@4ax.com:> On Fri, 24 Jun 2022 10:46:57 -0700 (PDT), Lasse Langwadt > Christensen <langwadt@fonz.dk> wrote: > >>fredag den 24. juni 2022 kl. 19.34.02 UTC+2 skrev >>DecadentLinux...@decadence.org: >>> Ed Lee <edward....@gmail.com> wrote in >>> news:a887f1de-ed5c-439e...@googlegroups.com: >>> > On Friday, June 24, 2022 at 12:35:27 AM UTC-7, John Walliker >>> > wrote: >>> >> On Friday, 24 June 2022 at 05:04:53 UTC+1, >>> >> DecadentLinux...@decadence.org >>> > wrote: >>> >> > Don Y <blocked...@foo.invalid> wrote in >>> >> > news:t939gu$n72$1...@dont-email.me: >>> >> > > On 6/23/2022 7:38 PM, Ed Lee wrote: >>> >> > >> https://www.ebay.com/itm/144578327967 >>> >> > >> >>> >> > >> Blue is 15A. Yellow is 24A. But i need 30A. >>> >> > >> >>> >> > >> The contact areas are the same and looks like it can >>> >> > >> handle 30A as well. >>> >> > >> >>> >> > >> The only difference is the cylinder holding the wire. If >>> >> > >> the blue can hold 3xAWG18 (30A), why can't it handle >>> >> > >> 30A? >>> >> > >> >>> >> > >> Can i add more wires, for example, 3 more 1" stub wires >>> >> > >> as heat sink, using the yellow connectors? >>> >> > > >>> >> > > Why not use Anderson connectors? >>> >> > The WIRE getting attached to the lug is where you spec your >>> >> > current at. If the wire can take it, and the lug is meant >>> >> > for that gauge of wire, then it can also handle the current >>> >> > that wire can handle. >>> >> > >>> >> > If they cannot, then they are non-industry compliant JUNK. >>> >> > >>> >> > Name brands are far better and more compliant than cheap >>> >> > Home Depot chinese imports. Everything from the base metal >>> >> > to the plating on it. >>> >> From a TE Connectivity quick reference guide: >>> >> >>> >> Current Carrying Capacity >>> >> size 2.8mm 14A max with 1.5mm� wire size >>> >> size 4.8mm / 5.2mm 20A max with 2.5mm� wire size >>> >> size 6.3mm 28A max with 4 or 6mm� wire size >>> >> size 9.5mm 50A max with 10mm� wire size >>> >> >>> >> https://www.mouser.com/pdfdocs/TEConnectivityFASTONQuickRefere >>> >> nceG uide.PD >>> > F >>> >> >>> >> If you want reliable operation at a continuous current of 30A >>> >> then use th >>> > e >>> >> wider 375 series (9.5mm). >>> > >>> > I think the link i posted are round 6.3mm. It should be good >>> > for 400V 28A. The battery is 400V 26Ah. So, 1C >>> > charge/discharge should be within spec. >>> > >>> >> Better still, use Anderson Powerpole. One of the key features >>> >> of Powerpol >>> > e >>> >> connectors is that the contact is separated from the spring >>> >> so that each >>> > >>> >> uses the most suitable material for its function. >>> > >>> > They costs at least 10x. I can use it (anderson) for the main >>> > feed, but will adapt to the rest (spade) I have 32 sets of 12V >>> > batteries connected together plus BMS junction tap (4 each). >>> > 32x6 connectors cost money. >>> > >>> So does Silver Plated Copper (SPC) with PTFE insulation, but >>> that still does not discount the fact that it is what you should >>> use. >>> >>> You could also perform a 180 degree bend in an uninsulated >>> segment and use a lug that accepts that size and then solder it >>> in instead of crimping (or both). That way, your wire has no >>> breaks in it and two connections need only one lug. >> >>solder instead of crimp? with what purpose? maximize the risk of >>failure? > > Actually, properly made crimp connections are far more reliable > than solder. > > Joe Gwinn >Tensile wise, sure. No other reason. Both are actually best in a non flexure environment. Crimp, then solder. Rules out PVC completely because it creeps away from heat. That PVC crap should have been drummed out of the industry decades ago, IMNSHO.
Spade connectors current ratings
Started by ●June 23, 2022
Reply by ●June 25, 20222022-06-25
Reply by ●June 25, 20222022-06-25
Lasse Langwadt Christensen <langwadt@fonz.dk> wrote in news:52dcf7f0-766b-43b6-b412-3552acc3c6b7n@googlegroups.com:> lørdag den 25. juni 2022 kl. 00.45.38 UTC+2 skrev Joe Gwinn: >> On Fri, 24 Jun 2022 10:46:57 -0700 (PDT), Lasse Langwadt >> Christensen <lang...@fonz.dk> wrote: >> >> >fredag den 24. juni 2022 kl. 19.34.02 UTC+2 skrev >> >DecadentLinux...@decad > ence.org: >> >> Ed Lee <edward....@gmail.com> wrote in >> >> news:a887f1de-ed5c-439e...@googlegroups.com: >> >> > On Friday, June 24, 2022 at 12:35:27 AM UTC-7, John Walliker >> >> > wrote: >> >> >> On Friday, 24 June 2022 at 05:04:53 UTC+1, >> >> >> DecadentLinux...@decadence.org >> >> > wrote: >> >> >> > Don Y <blocked...@foo.invalid> wrote in >> >> >> > news:t939gu$n72$1...@dont-email.me: >> >> >> > > On 6/23/2022 7:38 PM, Ed Lee wrote: >> >> >> > >> https://www.ebay.com/itm/144578327967 >> >> >> > >> >> >> >> > >> Blue is 15A. Yellow is 24A. But i need 30A. >> >> >> > >> >> >> >> > >> The contact areas are the same and looks like it can >> >> >> > >> handle 30A as well. >> >> >> > >> >> >> >> > >> The only difference is the cylinder holding the wire. >> >> >> > >> If the > >> >> >> > >> blue can hold 3xAWG18 (30A), why can't it handle 30A? >> >> >> > >> >> >> >> > >> Can i add more wires, for example, 3 more 1" stub >> >> >> > >> wires as heat sink, using the yellow connectors? >> >> >> > > >> >> >> > > Why not use Anderson connectors? >> >> >> > The WIRE getting attached to the lug is where you spec >> >> >> > your current at. If the wire can take it, and the lug is >> >> >> > meant for that gauge of wire, then it can also handle the >> >> >> > current that wire can handle. >> >> >> > >> >> >> > If they cannot, then they are non-industry compliant >> >> >> > JUNK. >> >> >> > >> >> >> > Name brands are far better and more compliant than cheap >> >> >> > Home Depot chinese imports. Everything from the base >> >> >> > metal to the plating on it. >> >> >> From a TE Connectivity quick reference guide: >> >> >> >> >> >> Current Carrying Capacity >> >> >> size 2.8mm 14A max with 1.5mm² wire size >> >> >> size 4.8mm / 5.2mm 20A max with 2.5mm² wire size >> >> >> size 6.3mm 28A max with 4 or 6mm² wire size >> >> >> size 9.5mm 50A max with 10mm² wire size >> >> >> >> >> >> https://www.mouser.com/pdfdocs/TEConnectivityFASTONQuickRefe >> >> >> renceG > >> >> >> uide.PD >> >> > F >> >> >> >> >> >> If you want reliable operation at a continuous current of >> >> >> 30A then use th >> >> > e >> >> >> wider 375 series (9.5mm). >> >> > >> >> > I think the link i posted are round 6.3mm. It should be good >> >> > for 400V 28A. The battery is 400V 26Ah. So, 1C >> >> > charge/discharge should be within spec. >> >> > >> >> >> Better still, use Anderson Powerpole. One of the key >> >> >> features of Powerpol >> >> > e >> >> >> connectors is that the contact is separated from the spring >> >> >> so that each >> >> > >> >> >> uses the most suitable material for its function. >> >> > >> >> > They costs at least 10x. I can use it (anderson) for the >> >> > main feed, but will adapt to the rest (spade) I have 32 sets >> >> > of 12V batteries connected together plus BMS junction tap (4 >> >> > each). 32x6 connectors cost money. >> >> > >> >> So does Silver Plated Copper (SPC) with PTFE insulation, but >> >> that still does not discount the fact that it is what you >> >> should use. >> >> >> >> You could also perform a 180 degree bend in an uninsulated >> >> segment and use a lug that accepts that size and then solder >> >> it in instead of > >> >> crimping (or both). That way, your wire has no breaks in it >> >> and two connections need only one lug. >> > >> >solder instead of crimp? with what purpose? maximize the risk of >> >failure > ? >> Actually, properly made crimp connections are far more reliable >> than solder. > > exactly >Nice try. If he does not want to pay for a premium brand of lugs, he is not going to have a premium grade crimper, so attaining "a proper crimp" is not as easy as it is in an industrial setting with proper tools being used.
Reply by ●June 25, 20222022-06-25
On Saturday, June 25, 2022 at 1:03:05 AM UTC-7, DecadentLinux...@decadence.org wrote:> Ed Lee <edward....@gmail.com> wrote in > news:d43cd76f-1516-447c...@googlegroups.com: > > I just need something better than the other connections, so they > > blow up before the main feed, which is more difficult to replace. > > > You want connections that act as fuses? > > Bad, extremely flawed logic.There is a 30A fuse. Unfortunately, they don't have 28A fuse. If any connector burn out, i just want the main feed to be the last.
Reply by ●June 26, 20222022-06-26
On Saturday, June 25, 2022 at 1:08:59 AM UTC-7, DecadentLinux...@decadence.org wrote:> Lasse Langwadt Christensen <lang...@fonz.dk> wrote in > news:52dcf7f0-766b-43b6...@googlegroups.com: > > lørdag den 25. juni 2022 kl. 00.45.38 UTC+2 skrev Joe Gwinn:> >> Actually, properly made crimp connections are far more reliable > >> than solder. > > > > exactly > > > Nice try. If he does not want to pay for a premium brand of lugs, > he is not going to have a premium grade crimper, so attaining "a > proper crimp" is not as easy as it is in an industrial setting with > proper tools being used.Yeah, the 'yellow lugs' mentioned are insulated, consumer items. Better crimping uses barrel crimps, electrode paste (for aluminum), well-stripped wire of the right gage, and a ratchet crimper that gets recertified occasionally, and... pulling random stuff out of the drawer and getting it all right is hard. Sometimes, I solder over a crimp, because... well, I goofed. But, I have used the right hydraulic crimp tools on heavy cable, too; it's reliable all right.
Reply by ●June 26, 20222022-06-26
whit3rd <whit3rd@gmail.com> wrote in news:69ec7fb4-8a21-4ec2-a7eb-d62966b067cen@googlegroups.com:> On Saturday, June 25, 2022 at 1:08:59 AM UTC-7, > DecadentLinux...@decadence.org wrote: >> Lasse Langwadt Christensen <lang...@fonz.dk> wrote in >> news:52dcf7f0-766b-43b6...@googlegroups.com: >> > lørdag den 25. juni 2022 kl. 00.45.38 UTC+2 skrev Joe Gwinn: > >> >> Actually, properly made crimp connections are far more >> >> reliable than solder. >> > >> > exactly >> > >> Nice try. If he does not want to pay for a premium brand of lugs, >> he is not going to have a premium grade crimper, so attaining "a >> proper crimp" is not as easy as it is in an industrial setting >> with proper tools being used. > > Yeah, the 'yellow lugs' mentioned are insulated, consumer items. > Better crimping uses barrel crimps, electrode paste (for > aluminum), well-stripped wire of the right gage, and a ratchet > crimper that gets recertified occasionally, and... pulling random > stuff out of the drawer and getting it all right is hard. > Sometimes, I solder over a crimp, because... well, I goofed. > But, I have used the right hydraulic crimp tools on heavy cable, > too; it's reliable all right.Yes. A proper crimp is even what is referred to as "gas tight", and has a very high pull strength before failure.
Reply by ●June 26, 20222022-06-26
On Sunday, June 26, 2022 at 12:19:29 AM UTC-4, whit3rd wrote:> On Saturday, June 25, 2022 at 1:08:59 AM UTC-7, DecadentLinux...@decadence.org wrote: > > Lasse Langwadt Christensen <lang...@fonz.dk> wrote in > > news:52dcf7f0-766b-43b6...@googlegroups.com: > > > lørdag den 25. juni 2022 kl. 00.45.38 UTC+2 skrev Joe Gwinn: > > > >> Actually, properly made crimp connections are far more reliable > > >> than solder. > > > > > > exactly > > > > > Nice try. If he does not want to pay for a premium brand of lugs, > > he is not going to have a premium grade crimper, so attaining "a > > proper crimp" is not as easy as it is in an industrial setting with > > proper tools being used. > Yeah, the 'yellow lugs' mentioned are insulated, consumer items. > Better crimping uses barrel crimps, electrode paste (for aluminum), > well-stripped wire of the right gage, and a ratchet crimper that gets > recertified occasionally, and... pulling random stuff out of the drawer > and getting it all right is hard. Sometimes, I solder over a crimp, because... > well, I goofed. But, I have used the right hydraulic crimp tools on heavy cable, too; it's > reliable all right.What surprises me, is this is the primary way of connecting lead-acid batteries that are bigger than a D cell, and smaller than a motorcycle battery. The potential for reversing the leads is not tiny and the consequences enormous! I believe the lithium batteries typically used in model airplanes, etc. have a polarized connector that even offers protection from the surge current when plugged in. -- Rick C. - Get 1,000 miles of free Supercharging - Tesla referral code - https://ts.la/richard11209
Reply by ●June 26, 20222022-06-26
On Sunday, June 26, 2022 at 8:45:40 AM UTC-7, Ricky wrote:> On Sunday, June 26, 2022 at 12:19:29 AM UTC-4, whit3rd wrote: > > On Saturday, June 25, 2022 at 1:08:59 AM UTC-7, DecadentLinux...@decadence.org wrote: > > > Lasse Langwadt Christensen <lang...@fonz.dk> wrote in > > > news:52dcf7f0-766b-43b6...@googlegroups.com: > > > > lørdag den 25. juni 2022 kl. 00.45.38 UTC+2 skrev Joe Gwinn: > > > > > >> Actually, properly made crimp connections are far more reliable > > > >> than solder. > > > > > > > > exactly > > > > > > > Nice try. If he does not want to pay for a premium brand of lugs, > > > he is not going to have a premium grade crimper, so attaining "a > > > proper crimp" is not as easy as it is in an industrial setting with > > > proper tools being used. > > Yeah, the 'yellow lugs' mentioned are insulated, consumer items. > > Better crimping uses barrel crimps, electrode paste (for aluminum), > > well-stripped wire of the right gage, and a ratchet crimper that gets > > recertified occasionally, and... pulling random stuff out of the drawer > > and getting it all right is hard. Sometimes, I solder over a crimp, because... > > well, I goofed. But, I have used the right hydraulic crimp tools on heavy cable, too; it's > > reliable all right. > What surprises me, is this is the primary way of connecting lead-acid batteries that are bigger than a D cell, and smaller than a motorcycle battery. The potential for reversing the leads is not tiny and the consequences enormous! I believe the lithium batteries typically used in model airplanes, etc. have a polarized connector that even offers protection from the surge current when plugged in.I use male plugs for positive and female socket for negative. No chance of reversing. For uni-sexual male circuit breaker, i use a short female to female adapter glued to it.
Reply by ●June 27, 20222022-06-27
Ed Lee <edward.ming.lee@gmail.com> wrote:> https://www.ebay.com/itm/144578327967 > > Blue is 15A. Yellow is 24A. But i need 30A. > > The contact areas are the same and looks like it can handle 30A as well. > > The only difference is the cylinder holding the wire. If the blue can > hold 3xAWG18 (30A), why can't it handle 30A?Because it's a garbage connector kit that you linked to.> Can i add more wires, for example, 3 more 1" stub wires as heat sink, > using the yellow connectors?30 amps is no problem with a 0.250 faston stuff. Buy US made terminals that have fully welded sleeves for the wire or a second metal shroud over the folded part. You can see the second sleeve on this splash page for 3M if you look carefully at the dark blue terminal on the left. https://www.3m.com/3M/en_US/p/c/electrical/crimp-terminals/ Panduit makes good crimp terminals too. Whatever Amp is named this week makes quality terminals too, but good luck sifting through all the variations of stuff. There are also non-copper terminals for high temperature use for things like heating elements. A good quality crimper and dies are required for a solid, high current ready connection. Panduit has a decent line of controlled cycle crimpers. Even the "pliers" CT-260 is a good tool for the style that's generally considered terrible. The bolter-cutter, wire stripper and crimp tools made of stamped sheet metal are no good. I use an AMP ratcheting style tool that takes the standard 3 size/gang dies. Good dies are polished so they release from the connector. If you want to cadillac of crimpers and dies, DMC is the place to talk to.
Reply by ●June 27, 20222022-06-27
Cydrome Leader <presence@MUNGEpanix.com> wrote in news:t9bko7$214$1@reader2.panix.com: snip DMC makes the mil pin crimpers. They have a quad style impingement die. The best electrical large lug commercial crimpers are AMP and Panduit and others like TE connectivity. No sense spending 500 dollars on a DMC when you can get an AMP for a few hundred less. Panduit, AMP, Leviton, TTI.
Reply by ●June 27, 20222022-06-27
DecadentLinuxUserNumeroUno@decadence.org wrote:> Cydrome Leader <presence@MUNGEpanix.com> wrote in > news:t9bko7$214$1@reader2.panix.com: > > snip > > DMC makes the mil pin crimpers. They have a quad style impingement > die. > > The best electrical large lug commercial crimpers are AMP and Panduit > and others like TE connectivity. No sense spending 500 dollars on a > DMC when you can get an AMP for a few hundred less. > > Panduit, AMP, Leviton, TTI.DMC makes the plain 1" dies too. I've not looked for any on ebay, but good tools turn up there all the time.
