aelectricalman
Senior Member
- Location
- KY
I am looking for a single disconnect that will shut down up to 6 circuits at one time. It must be DC rated and can not depend on AC circuit to close or open a coil. Has anyone every seen such a beast?
Got any information on voltage and currents?I am looking for a single disconnect that will shut down up to 6 circuits at one time. It must be DC rated and can not depend on AC circuit to close or open a coil. Has anyone every seen such a beast?
Got any information on voltage and currents?
Disconnect off load or on load?
Type of load?
sounds like something you would need in a power company sub station. the 6 pole switch is probably a contactor because you mention a coil. you can buy a 6 pole or 2 3 pole magnetic contactors (be careful these are contactors not motor controllers, there are a big difference, MC has thermal overload protection) i think i remember the contactor coils being dual rated (AC OR DC) call your local supplier and talk to inside sales, they can best help you.
I see no reason to open both legs of a DC circuit in this case.
yea, use a 30 amp disconnect 3 pole, why use 6
The voltage is 600V max
The current is 12A per string (leg) and there would be 6 of them.
Not sure what your asking by on load or off load.
Its a solar PV system and we are required to have a DC disconnect on the roof of the building to take the 6 circuits to the inverters, whcih are mounted 2 stories down
I know Bussmann makes 6 pole disconnect switches, and I was going to send you a link to their disconnect catalog but see this:
http://www.cooperbussmann.com/pdf/8c2d6f93-8905-4e7a-8775-9b7beae3e385.pdf
This was on the front page of the Bussmann website.
http://www.cooperbussmann.com/
We have 6 inverters each needing a positive and a negative. Thats the kicker.
The inspector wants the DC side of the system to be on 1 disconnect for the purpose of giving the fire dept. the luxury of shutting the system down with one handle.