Looking For Large DC Rated Safety Switch

[Dyno22]

Is anyone using a high current DC rated safety switch to disconnect a battery bank from a load? Operating conditions is 300 VDC and 265 Amps.

 

[rbulsara]

If in the USA, Pringle is one manufacturer.

Now-ad-days DC circuit breakers manufacured by Square D are common in large UPS applications.

 

[ScottyUK]

What do you mean by safety switch? There are a few suppliers of load-break switches for DC duty, but they are large and expensive. Please define requirements a bit more.



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One day my ship will come in.
But with my luck, I'll be at the airport!

 

[jraef]

Most all of the major manufacturers offer this, but to get above 250VDC rating you need to look at the heavy duty 600V rated units. I just checked the Square-D catalog and they go up to 1200A @ 600VDC. Click here and then hit the "NEXT" button near the top-right of the page for 600VAC/DC
I'm sure that Siemens, Cutler Hammer, GE etc. all follow suit.

ScottyUK,
A "Safety Switch" is a specific design of disconnect swith here in the US. Knife blade, dead front, vertical handle operation, lockable in the Off position.

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[Dyno22]

Thanks for all your help. The Square D product was exactly what I was looking for.

 

[ScottyUK]

Thanks jraef - we're divided by a common language again! You guys need to learn English

NEWB - sorry for my ignorance!


----------------------------------

One day my ship will come in.
But with my luck, I'll be at the airport!