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Needed: 100A contactors

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  Needed: 100A contactors David Lesher <wb8foz@panix.com> - 2017-09-14 03:04 +0000
    Re: Needed: 100A contactors "Tim Williams" <tmoranwms@gmail.com> - 2017-09-14 05:34 -0500
      Re: Needed: 100A contactors David Lesher <wb8foz@panix.com> - 2017-09-14 13:44 +0000
    Re: Needed: 100A contactors Tom Kupp <tjkupp@gmail.com> - 2017-09-14 11:18 -0400
      Re: Needed: 100A contactors David Lesher <wb8foz@panix.com> - 2017-09-14 19:45 +0000
        Re: Needed: 100A contactors George Herold <gherold@teachspin.com> - 2017-09-14 13:09 -0700
          Re: Needed: 100A contactors David Lesher <wb8foz@panix.com> - 2017-09-15 14:44 +0000
            Re: Needed: 100A contactors George Herold <gherold@teachspin.com> - 2017-09-15 08:43 -0700
              Re: Needed: 100A contactors David Lesher <wb8foz@panix.com> - 2017-09-18 02:25 +0000
        Re: Needed: 100A contactors "Carl Ijames" <carl.ijamesXXX@YYYverizon.net> - 2017-09-14 16:15 -0400
          Re: Needed: 100A contactors David Lesher <wb8foz@panix.com> - 2017-09-15 14:43 +0000
            Re: Needed: 100A contactors "Carl Ijames" <carl.ijamesXXX@YYYverizon.net> - 2017-09-15 15:10 -0400
              Re: Needed: 100A contactors David Lesher <wb8foz@panix.com> - 2017-09-18 02:02 +0000
    Re: Needed: 100A contactors mroberds@att.net - 2017-09-18 05:07 +0000
      Re: Needed: 100A contactors tabbypurr@gmail.com - 2017-09-18 03:09 -0700
        Re: Needed: 100A contactors David Lesher <wb8foz@panix.com> - 2017-09-27 17:13 +0000
          Re: Needed: 100A contactors Lasse Langwadt Christensen <langwadt@fonz.dk> - 2017-09-27 10:28 -0700
    Re: Needed: 100A contactors Wim Ton <wim.ton@gmail.com> - 2017-09-27 12:49 -0700
      Re: Needed: 100A contactors David Lesher <wb8foz@panix.com> - 2017-09-27 19:56 +0000

#477383 — Needed: 100A contactors

I'm seeking some 80-100A contactors. 

3P, Form B (or C), 24VAC coils, DIN rail mounting.

Any suggested PN's & sources?

-- 
A host is a host from coast to coast.................wb8foz@nrk.com
& no one will talk to a host that's close..........................
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433

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#477405

Cost target?

You can find those at any supplier (say, Mouser, Allied Electronics, etc.), 
I'm guessing you've already searched and come up unsatisfied??

Tim

-- 
Seven Transistor Labs, LLC
Electrical Engineering Consultation and Contract Design
Website: http://seventransistorlabs.com

"David Lesher" <wb8foz@panix.com> wrote in message 
news:opcrk3$ejd$1@reader2.panix.com...
> I'm seeking some 80-100A contactors.
>
> 3P, Form B (or C), 24VAC coils, DIN rail mounting.
>
> Any suggested PN's & sources?
>
> -- 
> A host is a host from coast to coast.................wb8foz@nrk.com
> & no one will talk to a host that's close..........................
> Unless the host (that isn't close).........................pob 1433
> is busy, hung or dead....................................20915-1433 

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#477420

"Tim Williams" <tmoranwms@gmail.com> writes:

>Cost target?

>You can find those at any supplier (say, Mouser, Allied Electronics, etc.), 
>I'm guessing you've already searched and come up unsatisfied??

>Tim

Mostly I've found null results for the specs.


-- 
A host is a host from coast to coast.................wb8foz@nrk.com
& no one will talk to a host that's close..........................
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433

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#477428

Something like this https://www.relayspec.com/specs/026940/b101.pdf?

On 09/13/2017 11:04 PM, David Lesher wrote:
> I'm seeking some 80-100A contactors.
> 
> 3P, Form B (or C), 24VAC coils, DIN rail mounting.
> 
> Any suggested PN's & sources?
> 

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#477467

Tom Kupp <tjkupp@gmail.com> writes:

>Something like this https://www.relayspec.com/specs/026940/b101.pdf?

>On 09/13/2017 11:04 PM, David Lesher wrote:
>> I'm seeking some 80-100A contactors.
>> 
>> 3P, Form B (or C), 24VAC coils, DIN rail mounting.
>> 
>> Any suggested PN's & sources?


Alas, those are single-pole. I need 2 or 3P. Looked at relayspec.com to no joy, either.

I have seen NC/DT contactors in many a panel, but I get Irma stole all the new ones.....



-- 
A host is a host from coast to coast.................wb8foz@nrk.com
& no one will talk to a host that's close..........................
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433

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#477471

On Thursday, September 14, 2017 at 3:45:42 PM UTC-4, David Lesher wrote:
> Tom Kupp <tjkupp@gmail.com> writes:
> 
> >Something like this https://www.relayspec.com/specs/026940/b101.pdf?
> 
> >On 09/13/2017 11:04 PM, David Lesher wrote:
> >> I'm seeking some 80-100A contactors.
> >> 
> >> 3P, Form B (or C), 24VAC coils, DIN rail mounting.
> >> 
> >> Any suggested PN's & sources?
> 
> 
> Alas, those are single-pole. I need 2 or 3P. Looked at relayspec.com to no joy, either.
> 
> I have seen NC/DT contactors in many a panel, but I get Irma stole all the new ones.....
> 
> 
> 
> -- 
> A host is a host from coast to coast.................wb8foz@nrk.com
> & no one will talk to a host that's close..........................
> Unless the host (that isn't close).........................pob 1433
> is busy, hung or dead....................................20915-1433

Did you troll the digikey site? That's where I almost always start 
a parts search.   

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#477568

George Herold <gherold@teachspin.com> writes:


>Did you troll the digikey site? That's where I almost always start 
>a parts search.   

And Mouser.....

-- 
A host is a host from coast to coast.................wb8foz@nrk.com
& no one will talk to a host that's close..........................
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433

[toc] | [prev] | [next] | [standalone]

#477585

On Friday, September 15, 2017 at 10:44:16 AM UTC-4, David Lesher wrote:
> George Herold <gherold@teachspin.com> writes:
> 
> 
> >Did you troll the digikey site? That's where I almost always start 
> >a parts search.   
> 
> And Mouser.....
This isn't what you want?
https://www.digikey.com/products/en?keywords=cdc65-24

GH
> 
> -- 
> A host is a host from coast to coast.................wb8foz@nrk.com
> & no one will talk to a host that's close..........................
> Unless the host (that isn't close).........................pob 1433
> is busy, hung or dead....................................20915-1433

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#477829

George Herold <gherold@teachspin.com> writes:

>This isn't what you want?
>https://www.digikey.com/products/en?keywords=cdc65-24

They appear to be Form A, i.e. NO. 
I need Form B, i.e. NC contacts.
-- 
A host is a host from coast to coast.................wb8foz@nrk.com
& no one will talk to a host that's close..........................
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433

[toc] | [prev] | [next] | [standalone]

#477472

"David Lesher"  wrote in message news:opem8u$n5s$1@reader2.panix.com...

Tom Kupp <tjkupp@gmail.com> writes:

>Something like this https://www.relayspec.com/specs/026940/b101.pdf?

>On 09/13/2017 11:04 PM, David Lesher wrote:
>> I'm seeking some 80-100A contactors.
>>
>> 3P, Form B (or C), 24VAC coils, DIN rail mounting.
>>
>> Any suggested PN's & sources?


Alas, those are single-pole. I need 2 or 3P. Looked at relayspec.com to no 
joy, either.

I have seen NC/DT contactors in many a panel, but I get Irma stole all the 
new ones.....
=======================================================

What voltage rating do you need on the contacts, and ac or dc?

-- 
Regards,
Carl Ijames

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#477567

"Carl Ijames" <carl.ijamesXXX@YYYverizon.net> writes:

>Tom Kupp <tjkupp@gmail.com> writes:

>>Something like this https://www.relayspec.com/specs/026940/b101.pdf?


>Alas, those are single-pole. I need 2 or 3P. Looked at relayspec.com to no 
>joy, either.

>I have seen NC/DT contactors in many a panel, but I get Irma stole all the 
>new ones.....
>=======================================================

>What voltage rating do you need on the contacts, and ac or dc?


240 VAC resistive; we are interupting both sides of a 240V circuit.

I'm having such a hard time finding DPNC 100A contactors that
I'm debating which is better: using 2 paralled 50A contacts or
using 2 SPNC relays.

-- 
A host is a host from coast to coast.................wb8foz@nrk.com
& no one will talk to a host that's close..........................
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433

[toc] | [prev] | [next] | [standalone]

#477614

"David Lesher"  wrote in message news:opgouj$7jn$1@reader2.panix.com...
240 VAC resistive; we are interupting both sides of a 240V circuit.

I'm having such a hard time finding DPNC 100A contactors that
I'm debating which is better: using 2 paralled 50A contacts or
using 2 SPNC relays.
========================================

No luck finding anything rated higher than 50A, sorry.  Would dropping the 
DIN rail mount get you anywhere? As far as two 100A relays or parallel 50A 
relays, my amateur opinion would be to use two 100A relays.  With parallel 
relay contacts you have to worry about getting equal current sharing over 
the life of the relay in your apparatus, and I think that that is hard to 
guarantee.

-- 
Regards,
Carl Ijames 

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#477824

"Carl Ijames" <carl.ijamesXXX@YYYverizon.net> writes:


>No luck finding anything rated higher than 50A, sorry.  Would dropping the 
>DIN rail mount get you anywhere? 

Not as far as I can tell...

> As far as two 100A relays or parallel 50A relays, my amateur
>opinion would be to use two 100A relays.  With parallel relay
>contacts you have to worry about getting equal current sharing
>over the life of the relay in your apparatus, and I think that
>that is hard to guarantee.

Yes, pondered that. But just finding 100A NC relays much less
2-pole ones, is like making cold fusion work.
-- 
A host is a host from coast to coast.................wb8foz@nrk.com
& no one will talk to a host that's close..........................
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433

[toc] | [prev] | [next] | [standalone]

#477839

In sci.electronics.components David Lesher <wb8foz@panix.com> wrote:
> Any suggested PN's & sources?

All of the below are "bare" contactors, not in an enclosure.  They
also aren't usually DIN mount - most of them have a mounting flange
or feet at the bottom.

Square D 8502SEO2V01S is 3 pole, 600 VAC / 90 A contacts, 24 VAC coil.
A bargain at around $1,400 list price.  Full specs at the hideous URL:

http://www.schneider-electric.us/en/product/8502SEO2V01S/contactor-600vac-90amp-nema-%2Boptions/?range=1450-type-s-contactors&node=166388148-full-voltage-contactors&parent-subcategory-id=50420&parent-category-id=50400

Graybar says they can order it for $1,500 (!) and MSC says they'll order
it for $1,340.  This place says $600 but it's not in stock:
https://www.imc-direct.com/product_p/8502seo2v01s.htm

GE's website is crappy enough that it's easier to download their PDF
catalog from
https://www.geindustrial.com/catalog/controlcatalog/01_CC.pdf
and start looking on page 193.  From that, you can build part numbers:

CR305M024  2 pole, 600 V / 90 A contacts, 24 VAC coil, list $552
CR305N024  2 pole, 600 V / 135 A contacts, 24 VAC coil, list $1,332
CR305E024  3 pole, 600 V / 90 A contacts, 24 VAC coil, list $600
CR305F024  3 pole, 600 V / 135 A contacts, 24 VAC coil, list $1,440

However, Google can't find any hits for any of those part numbers, so
it may not be possible to actually buy them.

Allen-Bradley/Rockwell also makes contactors like this.  A 300-DODJ930
is almost what you want - 3 pole, 90 A - except it has a 24 VDC coil
(24 VAC seems to not be available).  It appears to list around $1,160
and a few places say they'll order it for you at that price.  These
guys say they can get it in a couple of weeks for $630:

http://mostelectric.com/products/2052157/300-dodj930-allen-bradley-300dodj930-new

ABB also makes these contactors.  I didn't look at their catalog, but
came at it through a vendor.  ABB A75N3-30-11-84 is 3 pole, 90 A, but
120 V AC coil.  Platt Electric stocks it at $400.

https://www.platt.com/platt-electric-supply/NEMA-IEC-Contactors-Non-Reversing-Contactors/ABB/A75N3-30-11-84/product.aspx?zpid=445321

Kilovac makes some AC-rated contactors; their FM200 series is in the
direction of what you want.  An FM200BBXX (2 pole) or FM200BBXXX (3
pole) is exactly what you want, but nobody seems to stock them.  Mouser
has two FM200CBXXX (3 pole, 120 VAC coil) in stock, for $1,030.

They also make some relays for electric vehicle use that have *DC*
contact ratings.  I'm not sure what their position is on using the
contacts on AC; I looked for a tech note but I couldn't find one.  They
also have DC coils, so you'd need to add a rectifier.  Mouser carries a
LEV100A5ANG for $95 (single-pole, so you'd have to use two) or a
EV202ASAND for $484 (DPST, only need one).  If you don't mind buying
surplus, All Electronics has a single-pole one for $39 (!):

https://www.allelectronics.com/item/sol-205/24-vdc-500-amp-900-volt-contactor/1.html

For the Square D, GE, Allen-Bradley, and ABB stuff, I sort of suspect
that if you walk into the electric supply and they've never seen you
before, you pay list price, but if you're their buddy, or they think you
might place a big order in the future, it gets a lot cheaper.  (This
pricing model has been obsolete since the day before Christmas 1990,
but it's taking a long time to finally die.)

This may not be what you want, but there is a thing called a "shunt
trip breaker".  This is a circuit breaker that opens on overload like
normal, but it also has a solenoid coil in it that you can use to trip
the breaker whenever you want.  Once you've tripped the breaker, though,
you have to walk over to the breaker panel and manually turn it back on,
which may not be what you want.  Also, you usually have to get it from
whoever built your circuit breaker panel.

(I have seen one used to implement remote emergency stops in a machine
shop.  The big machines had shunt trip breakers, and a 24 VAC circuit
ran around the shop to pushbuttons.  You could push any of those buttons
and it would open the breakers for the big stuff.)

I am not affiliated with any companies mentioned.

Matt Roberds

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#477855

On Monday, 18 September 2017 06:07:08 UTC+1, mrob...@att.net  wrote:
> In sci.electronics.components David Lesher <wb8foz@panix.com> wrote:
> > Any suggested PN's & sources?
> 
> All of the below are "bare" contactors, not in an enclosure.  They
> also aren't usually DIN mount - most of them have a mounting flange
> or feet at the bottom.
> 
> Square D 8502SEO2V01S is 3 pole, 600 VAC / 90 A contacts, 24 VAC coil.
> A bargain at around $1,400 list price.  Full specs at the hideous URL:
> 
> http://www.schneider-electric.us/en/product/8502SEO2V01S/contactor-600vac-90amp-nema-%2Boptions/?range=1450-type-s-contactors&node=166388148-full-voltage-contactors&parent-subcategory-id=50420&parent-category-id=50400
> 
> Graybar says they can order it for $1,500 (!) and MSC says they'll order
> it for $1,340.  This place says $600 but it's not in stock:
> https://www.imc-direct.com/product_p/8502seo2v01s.htm
> 
> GE's website is crappy enough that it's easier to download their PDF
> catalog from
> https://www.geindustrial.com/catalog/controlcatalog/01_CC.pdf
> and start looking on page 193.  From that, you can build part numbers:
> 
> CR305M024  2 pole, 600 V / 90 A contacts, 24 VAC coil, list $552
> CR305N024  2 pole, 600 V / 135 A contacts, 24 VAC coil, list $1,332
> CR305E024  3 pole, 600 V / 90 A contacts, 24 VAC coil, list $600
> CR305F024  3 pole, 600 V / 135 A contacts, 24 VAC coil, list $1,440
> 
> However, Google can't find any hits for any of those part numbers, so
> it may not be possible to actually buy them.
> 
> Allen-Bradley/Rockwell also makes contactors like this.  A 300-DODJ930
> is almost what you want - 3 pole, 90 A - except it has a 24 VDC coil
> (24 VAC seems to not be available).  It appears to list around $1,160
> and a few places say they'll order it for you at that price.  These
> guys say they can get it in a couple of weeks for $630:
> 
> http://mostelectric.com/products/2052157/300-dodj930-allen-bradley-300dodj930-new
> 
> ABB also makes these contactors.  I didn't look at their catalog, but
> came at it through a vendor.  ABB A75N3-30-11-84 is 3 pole, 90 A, but
> 120 V AC coil.  Platt Electric stocks it at $400.
> 
> https://www.platt.com/platt-electric-supply/NEMA-IEC-Contactors-Non-Reversing-Contactors/ABB/A75N3-30-11-84/product.aspx?zpid=445321
> 
> Kilovac makes some AC-rated contactors; their FM200 series is in the
> direction of what you want.  An FM200BBXX (2 pole) or FM200BBXXX (3
> pole) is exactly what you want, but nobody seems to stock them.  Mouser
> has two FM200CBXXX (3 pole, 120 VAC coil) in stock, for $1,030.
> 
> They also make some relays for electric vehicle use that have *DC*
> contact ratings.  I'm not sure what their position is on using the
> contacts on AC; I looked for a tech note but I couldn't find one.  They
> also have DC coils, so you'd need to add a rectifier.  Mouser carries a
> LEV100A5ANG for $95 (single-pole, so you'd have to use two) or a
> EV202ASAND for $484 (DPST, only need one).  If you don't mind buying
> surplus, All Electronics has a single-pole one for $39 (!):
> 
> https://www.allelectronics.com/item/sol-205/24-vdc-500-amp-900-volt-contactor/1.html
> 
> For the Square D, GE, Allen-Bradley, and ABB stuff, I sort of suspect
> that if you walk into the electric supply and they've never seen you
> before, you pay list price, but if you're their buddy, or they think you
> might place a big order in the future, it gets a lot cheaper.  (This
> pricing model has been obsolete since the day before Christmas 1990,
> but it's taking a long time to finally die.)
> 
> This may not be what you want, but there is a thing called a "shunt
> trip breaker".  This is a circuit breaker that opens on overload like
> normal, but it also has a solenoid coil in it that you can use to trip
> the breaker whenever you want.  Once you've tripped the breaker, though,
> you have to walk over to the breaker panel and manually turn it back on,
> which may not be what you want.  Also, you usually have to get it from
> whoever built your circuit breaker panel.
> 
> (I have seen one used to implement remote emergency stops in a machine
> shop.  The big machines had shunt trip breakers, and a 24 VAC circuit
> ran around the shop to pushbuttons.  You could push any of those buttons
> and it would open the breakers for the big stuff.)
> 
> I am not affiliated with any companies mentioned.
> 
> Matt Roberds

At those sort of prices it might be worth making one. I had one years ago consisting of 2 large washers, one on a threaded rod. Add solenoid. I forget the current rating, it was rather more than 100A.

2x 50A in parallel I would not use. Switch bounce is such that each wll be switching 100A regardless of timing.


NT

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#479106

tabbypurr@gmail.com writes:


[Long post but alas seemingly all unusable..]

>At those sort of prices it might be worth making one. I had
>one years ago consisting of 2 large washers, one on a threaded
>rod. Add solenoid. I forget the current rating, it was rather
>more than 100A.

I can just picture the inspector looking diligently for the UL stamp on same.

-- 
A host is a host from coast to coast.................wb8foz@nrk.com
& no one will talk to a host that's close..........................
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433

[toc] | [prev] | [next] | [standalone]

#479110

Den onsdag den 27. september 2017 kl. 19.13.06 UTC+2 skrev David Lesher:
> tabbypurr@gmail.com writes:
> 
> 
> [Long post but alas seemingly all unusable..]
> 
> >At those sort of prices it might be worth making one. I had
> >one years ago consisting of 2 large washers, one on a threaded
> >rod. Add solenoid. I forget the current rating, it was rather
> >more than 100A.
> 
> I can just picture the inspector looking diligently for the UL stamp on same.
> 

just draw one with a sharpie

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#479124

On Thursday, 14 September 2017 05:04:43 UTC+2, David Lesher  wrote:
> I'm seeking some 80-100A contactors. 
> 
> 3P, Form B (or C), 24VAC coils, DIN rail mounting.
> 
> Any suggested PN's & sources?
> 
> -- 
> A host is a host from coast to coast.................wb8foz@nrk.com
> & no one will talk to a host that's close..........................
> Unless the host (that isn't close).........................pob 1433
> is busy, hung or dead....................................20915-1433

How about a breaker/disconnector from a smart meter?

BR, Wim

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#479128

Wim Ton <wim.ton@gmail.com> writes:


>How about a breaker/disconnector from a smart meter?

Never seen such. I thought about such a few years ago, and
assumed they had to be dual coil: one pull-in, the other tiny
one latching. Otherwise they'd not fall open on power loss.

-- 
A host is a host from coast to coast.................wb8foz@nrk.com
& no one will talk to a host that's close..........................
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433

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