Hello:

QQPX2 would be the UL category you should check.  ITE or other type power
supplies will not do for a hazardous location.

There are many things one needs to consider when dealing with Explosive
Atmospheres not considered in ITE or other safety standards.

Listed under QQPX2 are:

Diversified Technical Services
1400 Distributors Row
Harahan  LA  70123

Sola/Hevi-Duty
Unit of General Signal
1101 S Wells Street
Lake Geneva  W1  53147

Vicor Corp
25 Frontage Road
Andover  MA  01810


Hope this helps,


Mel Pedersen
Homolgations Engineer
Ph:  (605) 882-8535
mailto:mpeder...@midcom-inc.com

-----Original Message-----
From: Gary McInturff [mailto:gary.mcintu...@worldwidepackets.com]
Sent: Monday, July 24, 2000 3:34 PM
To: 'John Chambors'; 'emc-p...@ieee.org.'
Subject: RE: UL Recognized 24VDC PC Supply



        If you have a copy of the UL recognized component directory they
have a gazillion companies that have recognized supplies. I am looking at
the 2000 edition volume two (CCN QQGQ2)for power supplies used in ITE and it
runs from page 845 to 1274. There are different sections for medical
equipment and other uses. Its a good place to start hunting.
        Gary

-----Original Message-----
From: John Chambors [mailto:john.chamb...@nematron.com]
Sent: Monday, July 24, 2000 9:38 AM
To: 'emc-p...@ieee.org.'
Subject: UL Recognized 24VDC PC Supply



Does anyone know of a good source for a UL Recognized 24VDC PC Supply? It's
not too difficult to find 24VDC input power supplies, but finding one that
is UL recognized is another matter. I'm trying to get a product certified
for use in hazardous locations.

Thanks,

John Chambors
Senior Engineer

Nematron Corp.
Tel:  (734) 214-2021
Fax: (734) 994-8408


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