200A Manual Transfer Switch?
- Thread starter cmack
- Start date
Which 3 pole transfer switch did you go with? I'm interested in getting a 3 pole 100A too.
Ampster
Renewable Energy Hobbyist
I do not know why it would be an issue. 120 volt switches do not switch the neutral. The circuit breakers do not cut off the neutral. My inverter does not cut off the neutral when it goes off grid. The only caveat is that I have no idea if there is a code requirement one way or the other.
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EastTexCowboy
Solar Wizard
There's a lot of discussion on the pros and cons of a three pole vs a two pole. Without getting into all that, I opted for the three pole 100a Siemens. The best deal I found was Home Depot.
Siemens General Duty Double Throw 100 Amp 240-Volt 3-Pole Outdoor Non-Fusible Safety Switch DTGNF323R - The Home Depot
Double Throw switches are intended to transfer loads from 1 power source to another. All 2 and 3-pole double throw switches are suitable for use as service equipment including non-fusible versions when
www.homedepot.com
I have been looking at this one:
https://www.homedepot.com/p/GE-200-...ency-Power-Transfer-Switch-TC10324R/100150463
https://www.homedepot.com/p/GE-200-...ency-Power-Transfer-Switch-TC10324R/100150463
EastTexCowboy
Solar Wizard
Based on the specs I don't see any reason it wouldn't work. That said, if you look at the pictures with the cover open the Siemens looks like a lot more switch to me. I didn't see the GE when I was looking or I certainly would have considered it. Maybe someone on here has experience with both.
Edit: Looking again at the pictures, that's a two pole switch, not a three pole. Doesn't mean it wouldn't work but you're back to the two pole vs three pole discussion.
Yeah one is two pole the other three. I need 200 amp.
EastTexCowboy
Solar Wizard
I'm gonna say that's a yes, depending on the price.
Balrog006
Solar Enthusiast
I just installed a 15k and used an Eaton safety switch/shutoff, 600v 200A, fused, 2 pole, as main shutoff and first means of disconnect. For switching between grid and and the solar to feed my load panel I opted for the 2 pole double throw/3 position, 600v, 200a non fused, transfer switch from GE referenced in this thread.
The Eaton safety switch/shutoff being first downstream from the meter and my first means of disconnect is where grounds and neutrals are bonded, neutrals run thru continuous from there to the inverter and the load centers downstream, new grounding installed at the switch and then runs parallel but separated to the inverter and load centers and array/panels.
No faults or errors and everything runs and operates as it should.
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I know this is an older thread, but no, it is not an issue to share. In most cases you are better off sharing than switching the neutral. If you do switch the neutral you need to have an overlapping neutral-- no "off" position, and you need neutral-ground bonds on both sources. Current will always flow back to the source, so if it is the grid then that will be the source, and if it is the inverter that will.
Yes, You just need a 200A circuit breaker,why not make one by your self. It will cheap a lot.
corey66
DIY 9KW SMA TIGO System
DIY So I'm going round and round in my head on N loops with a transfer switch and I want one when I move to a house battery backup system. It's much cheaper to but a 2 pole 100A vs 3 pole transfer switch and I'm focused on the DTGNF323R but it's $1K cost. When I deploy a EG12kPV and feed critical loads to my sub-panel I have L1 and L2 and the N is a bus bar. But I do not want a N Loop coming also from the load center (bridged). 3 Pole DTGNF323R would eliminate the N loop, 2 pole DTGNF223R would bridge it or perhaps only come from the load center. Help me as I want to do the right thing here, but is it worth the extra cost? What would a electrician do here?
I’ve installed 1000’s of transfer switches. I have never switched the neutral. Or seen a system designed that way.
The primary reason to do it is GFI discrimination between normal and emergency sources. There are a few other times where it can be useful, like one generator and two utility services.
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