600 VDC switches [RE-wrenches]

[Travis Creswell, Ozark Solar]

Thanks Jeff,

What is the date of you Cutler-Hammer Spec book?  Mine is from 2001 so it's
a little out of date.

The specs you've given sound very familiar to the horsepower ratings found
on the inside of the many industrial safety switches.  

For example on the inside cover of the switch we are talking about they give
a variety of hp ratings and comparing to these to what you've listed for
amps they are the same. This switch says

30 HP @ 3 phase 600 AC

10 HP @ 1 phase 600 AC 

5 HP @ 3 phase 250 DC

Interesting enough it's only rated at 3 HP @ 3 Phase 125 DC.  There also is
note that says "use any two switching poles for DC and 1 phase AC".

Thanks

Travis



----------
>From: Jeff Yago <jryago at earthlink.net>
>To: RE-wrenches at topica.com
>Subject: RE: 600 VDC switches [RE-wrenches]
>Date: Tue, Feb 11, 2003, 4:03 PM
>

>Travis:
>
>My Cutler-Hammer spec. book gives the following info for the DH361URK
>Safety switch:
>
>3 Pole
>
>30 amp rated @ 3 phase 240  to 600 volt AC
>
>10 amp rated @ 1 phase 240 to 600 volt AC
>
>5 amp rated @ 250 volt DC
>
>Not rated for any load at 600 Volt DC
>
>NOTE - This part number has the following note added:
>
>"For 600 Volt DC rating, use 6 pole switch and series wiring, with
>amp rating the same as the 2 pole model"
>
>In other words, your salesman did not read the fine print at the
>bottom of the page.
>
>Jeff Yago
>
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