[RE-wrenches] DC circuit breakers in parallel

[bob ellison]

Makes me wonder how many dual breakers I have taken the handle tie off and
used as singles in the past. It has been several, and none with no internal
connections that I could find or notice, with the exception of longer rivets
holding them together.

 

Granted it has been a while since I have done that.

 

Later,

Bob Ellison 

 

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of John Berdner
Sent: Wednesday, February 27, 2013 2:06 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] DC circuit breakers in parallel

 

Larry:

 

The Code requires parallel breakers to be designed for this application
(internally ganged).

Just using a handle tie does not allow you to use the poles in parallel.

 

Best Regards,

 

John Berdner

General Manager, North America

 

SolarEdge Technologies, Inc.

3347 Gateway Boulevard, Fremont CA 94538 USA  (*Please note of our new
address.)
T: 510.498.3200, X 747

M: 530.277.4894 

 

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Ryan
Sent: Wednesday, February 27, 2013 8:45 AM
To: re-wrenches at lists.re-wrenches.org
Subject: Re: [RE-wrenches] DC circuit breakers in parallel

 

Larry
Our 100 amp din rail is essentially 2 breakers in parallel. So in theory the
2 60 amp breakers "Could" work but. My concern would be that they may not be
tripped at the same time where they are not internally ganged. I can't say
"Go Ahead" but.

Ryan

-- 
Ryan Stankevitz
Technical Support Manager
MidNite Solar Inc.
ryan at midnitesolar.com
360-403-7207 XT 151
Skype ID ryan.midnite



On 2/27/2013 11:21 AM, Larry Crutcher, Starlight Solar Power Systems wrote:

We are installing the system today and I only have 60amp in stock. Customer
lives in CA and is leaving today after the installation. 


Larry Crutcher

Starlight Solar Power Systems

 

 

On Feb 27, 2013, at 9:17 AM, Jonathan Hill wrote:

 

Why not use one of Midnite's new 100 amp din breakers?

Jonathan Hill 

Solar applications engineer

Solar Electric Supply

530-559-3781

solarjon at solarelectricsupply.com

 


On Feb 27, 2013, at 8:06 AM, "Larry Crutcher, Starlight Solar Power
Systems"<larry at starlightsolar.com> wrote:

Hello Wrenches, 

 

I am installing a Classic 150 controller in an RV with potential 95 amps
output at 12 volts. The customer has a Midnite DIN box and wants me to use
it for the controller output. I am out of 150VDC breakers but I have two 60
amp breakers. Is it safe and reliable to use the 2 breakers in parallel for
this purpose? I can pin the two handles together. There will be other
circuit protection at the battery.


Thank you,


Larry Crutcher

Starlight Solar Power Systems

 






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