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Spade connectors current ratings

Started by Ed Lee June 23, 2022
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?
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?
 Don WHY wrote:
=================
> 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?
** Cost ?? ..... Phil
On Thursday, June 23, 2022 at 8:16:13 PM UTC-7, palli...@gmail.com wrote:
> Don WHY wrote: > ================= > > 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? > ** Cost ??
and availability. We use these everywhere in hooking up batteries. It's OK to burn them out elsewhere, but not with the main feeds. These on the main feed would be difficult to replace; so, we want them to burn last.
Don Y <blockedofcourse@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.
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&sup2; wire size size 4.8mm / 5.2mm 20A max with 2.5mm&sup2; wire size size 6.3mm 28A max with 4 or 6mm&sup2; wire size size 9.5mm 50A max with 10mm&sup2; wire size https://www.mouser.com/pdfdocs/TEConnectivityFASTONQuickReferenceGuide.PDF If you want reliable operation at a continuous current of 30A then use the wider 375 series (9.5mm). Better still, use Anderson Powerpole. One of the key features of Powerpole connectors is that the contact is separated from the spring so that each uses the most suitable material for its function. John
John Walliker wrote:
=================
> > Better still, use Anderson Powerpole. One of the key features of Powerpole > connectors is that the contact is separated from the spring so that each > uses the most suitable material for its function. >
** Yes, the design is excellent and suited to many cycles of use. Plus you can parallel them in multiples to eliminate connection errors. OTOH QCs play right into Murphy's hands. ...... Phil
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&sup2; wire size > size 4.8mm / 5.2mm 20A max with 2.5mm&sup2; wire size > size 6.3mm 28A max with 4 or 6mm&sup2; wire size > size 9.5mm 50A max with 10mm&sup2; wire size > > https://www.mouser.com/pdfdocs/TEConnectivityFASTONQuickReferenceGuide.PDF > > If you want reliable operation at a continuous current of 30A then use the > 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 Powerpole > 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.
Ed Lee <edward.ming.lee@gmail.com> wrote in
news:a887f1de-ed5c-439e-b932-85f5ae286385n@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&sup2; wire size >> size 4.8mm / 5.2mm 20A max with 2.5mm&sup2; wire size >> size 6.3mm 28A max with 4 or 6mm&sup2; wire size >> size 9.5mm 50A max with 10mm&sup2; wire size >> >> https://www.mouser.com/pdfdocs/TEConnectivityFASTONQuickReferenceG >> 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. Unless you are talking about large gauge wires and want something like the robot wars guys use.
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&sup2; wire size > >> size 4.8mm / 5.2mm 20A max with 2.5mm&sup2; wire size > >> size 6.3mm 28A max with 4 or 6mm&sup2; wire size > >> size 9.5mm 50A max with 10mm&sup2; wire size > >> > >> https://www.mouser.com/pdfdocs/TEConnectivityFASTONQuickReferenceG > >> 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?