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Yellowbee
Participant

Join Date: Sep 2009
Posts: 4

30mm Panel cut-out switches

09/27/2009 8:12 AM

I need to replace an electrical pushbutton switch (round type) from a panel which has the panel-cut-out of 30mm. Apparently all current common switches have panel cut-outs of 20 to 22mm. Unfortunately I can't modify the panel due to space restriction around the switch. The switch has 3 contacts:- 2x normally open / 1x normally closed. Any help from where I can get such switches as this?
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JRaef
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United States - Member - New Member Engineering Fields - Power Engineering - New Member

Join Date: Sep 2006
Location: California, USA, where the Godless live next door to God.
Posts: 4665
Good Answers: 804
#1

Re: 30mm Panel cut-out switches

09/27/2009 12:48 PM

You didn't share your location in your post or your profile, so I can only offer generalized suggestions.

22mm and 30.5mm are the industrial control switch standard sizes. All major manufacturers of industrial controls provide both options. You must be looking at third tier suppliers or non-industrial grade devices.

For the most part, 22mm is used in IEC based counties and North America, but 30.5mm is used mostly just in North America (because it matches the NEMA standard of 1.2 inches), so look at suppliers who provide components all over the world. Examples would be Siemens, ABB, Schneider, GE, Eaton etc.

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rbenkov
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Join Date: Sep 2009
Posts: 1
#4
In reply to #1

Re: 30mm Panel cut-out switches

09/27/2009 10:41 PM

Dont forget Allen Bradley offers both 22mm and 30.5mm
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soebfatehi
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Join Date: Jun 2009
Posts: 223
Good Answers: 15
#2

Re: 30mm Panel cut-out switches

09/27/2009 1:30 PM

Mr.Ram Teknic Controlgear

703, Madhava, Bandra Kurla Complex, Bandra (East), Mumbai
400 051 - INDIA
Tel: +91-22-2659 2392 / 93 / 94

sales@teknic.co.in
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Simon Wan
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Join Date: Apr 2007
Posts: 577
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#3

Re: 30mm Panel cut-out switches

09/27/2009 9:33 PM

Most of the standard push button are come with 22 mm hole diameter. You can look for telemcanique push button. The telemcaniuqe push button has the flexibility to add in the auxiliary contact (Normally open or Normally close) to the push button. It has two screw at the contact block and you just have to screw it in to the existing push button contact.

Since your existing push button have a 30 mm holes diameter, you can add another layer of plastic sheet with 20mm diameter to seal the 30mm holes. Use a round type of plastic sheet to seal it. It look nicer on the control panel.

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ICETom
Member

Join Date: Sep 2009
Location: Midwest
Posts: 6
Good Answers: 1
#5

Re: 30mm Panel cut-out switches

09/28/2009 7:34 AM

The 30mm push switches are available from industrial electrical distributors around the country. You also did not indicate whether the switch is lighted, or the color of it. Here is a link to the webpage of one that shows some switches similar to your description: http://www.galco.com/scripts/cgiip.exe/wa/wcat/catalog.htm?familycode=SWITCH&subfamilycode=PBNONILL
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Anonymous Poster
#6

Re: 30mm Panel cut-out switches

09/28/2009 7:46 AM

Try Altech Corp (Altechcorp.com) in Fleminfton, New Jersey.

They offer 30.5mm switches and a solution for adopting a 22mm switch into a 30 mm cutout. 908-806-9400.
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Anonymous Poster
#7

Re: 30mm Panel cut-out switches

09/28/2009 8:55 AM

www.legrand.com
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Yellowbee
Participant

Join Date: Sep 2009
Posts: 4
#8
In reply to #7

Re: 30mm Panel cut-out switches

09/28/2009 5:19 PM

Managed to find one at last from Altechcorp.com - thanks to all.
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Users who posted comments:

Anonymous Poster (3); ICETom (1); JRaef (1); rbenkov (1); Simon Wan (1); soebfatehi (1); Yellowbee (1)

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