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lamestllama
7th Jul 2018, 10:04 PM
I am looking for a couple of push button contacts from a Hercus machine from the 1970s-1980s. The buttons I am talking about where used on the Milling machine and the #1 Tool and Cutter grinder. The part I am after a couple of is Siemens 3SA10 Contact block 500V.

There are some on ebay but at over $100 for shipping I am holding of in case somebody who can ship to me more reasonably has something I can use.

bwal74
15th Jul 2018, 12:46 PM
This is what I got.

I'll send you a PM.

Ben.

lamestllama
15th Jul 2018, 08:49 PM
Ben

sorry not the switches I am looking for. Here is a photo of the type I need. In particular the red one and the green one. the rotary knob for the light would be an absolute bonus too.

Eric

374232
This is what I got.

I'll send you a PM.

Ben.

eskimo
18th Jul 2018, 01:37 PM
These any good?

https://au.rs-online.com/web/p/products/7578711/?grossPrice=Y&cm_mmc=AU-PLA-DS3A-_-google-_-PLA_AU_EN_Automation_And_Control_Gear-_-Industrial_Push_Buttons_And_Pilot_Lights_And_Control_Stations%7CPush_Button_Heads-_-PRODUCT+GROUP&matchtype=&gclid=EAIaIQobChMIpZW9ms6n3AIVAj5gCh3j7gVSEAYYBSABEgJqMfD_BwE&gclsrc=aw.ds

https://www.ebay.com.au/itm/22mm-NO-NC-LED-Momentary-Panel-Mount-START-STOP-DPST-Push-Button-Switch-AC-220V/272972177083?hash=item3f8e68debb:m:m_yUpmAJZpnFD3xaBnxUmhQ&var=572181794284

BobL
18th Jul 2018, 01:47 PM
These any good?

https://au.rs-online.com/web/p/products/7578711/?grossPrice=Y&cm_mmc=AU-PLA-DS3A-_-google-_-PLA_AU_EN_Automation_And_Control_Gear-_-Industrial_Push_Buttons_And_Pilot_Lights_And_Control_Stations%7CPush_Button_Heads-_-PRODUCT+GROUP&matchtype=&gclid=EAIaIQobChMIpZW9ms6n3AIVAj5gCh3j7gVSEAYYBSABEgJqMfD_BwE&gclsrc=aw.ds

Watch out - some like these are only the head of the switch - there's no switching mechanism in it you have to buy these separately.


https://www.ebay.com.au/itm/22mm-NO-NC-LED-Momentary-Panel-Mount-START-STOP-DPST-Push-Button-Switch-AC-220V/272972177083?hash=item3f8e68debb:m:m_yUpmAJZpnFD3xaBnxUmhQ&var=572181794284
This one includes the switch mechanism.

VFD remote switches all operate at low logic V so the power ratings don't really matter and you can use almost any switches.

lamestllama
22nd Jul 2018, 04:24 PM
Eskimo and BobL

I am after the same as the original simply to make the machine look original so thanks for the thought Eskimo but at the moment I am holding out for the real deal. The machine has two VFDs buried inside but the only give away is the single phase plug. The Siemens mushroom head model 3SA11-40 is really all I need now. As BobL says i am only switching the 24v logic of the VFD's with the slight twist that I am switching it separately for each VFD to avoid connecting there separate logic circuits together.
I do have the stackable contacts that go behind the switch head on the way from the US so I am looking only for the actual switch actuator.

Eric