Help with external Battery bank disconnect inspection required
- Thread starter MikeSpeegle
- Start date
DIYrich
Solar Wizard
EV200A1ANA : Kilovac High Voltage Relays
Get EV200A1ANA Kilovac High Voltage Relays specs, pricing, inventory availability, and more from TE Connectivity. Get a sample or request a quote.
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MikeSpeegle
New Member
How does this work? If I read correctly it’s 36v 500 amp. I need 48v and 400-500 amp. Will it work with 48vEV200A1ANA : Kilovac High Voltage Relays
Get EV200A1ANA Kilovac High Voltage Relays specs, pricing, inventory availability, and more from TE Connectivity. Get a sample or request a quote.
DIYrich
Solar Wizard
"Contact Voltage" is 12-900v. "Contact Current" is 500a.
The "Coil Voltage" is 9-36, 32-95v, 48-95v volts, depending upon the model. This is the voltage that controls the coil to open or close the Contact. So, you can have a 12v line to an outside switch as a control line. You can get the 32-95v model to run the control line at battery voltage, but then you have more rules you have to follow for the wire protection.
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MikeSpeegle
New Member
Ok thank you very much. I will order one. Will the documentation tell me what external coil economizer I will need?
Brucey
Solar Wizard
This may do the job for much cheaper.
MikeSpeegle
New Member
That’s whole setup ?
Brucey
Solar Wizard
No as an alternative to the $160 relay.
MikeSpeegle
New Member
Ok I got it to try lol if it works I will like it 900% more lol
DIYrich
Solar Wizard
looks like the same thing, but used.
"These were recovered from industrial battery modules."
I'd be ok with used for this purpose. You can remove the fuse since you already have one.
MikeSpeegle
New Member
Thanks I sure would like this then running 4/0 through my brick wall.
MikeSpeegle
New Member
Any thoughts on Blue Sea’s option it has no continuous current and only uses power in switching 12v 7amp for 40ms.
It’s not UL certified but it’s Marine certified SAE & ISO. Will I have an issue with that?
Thanks again
It’s not UL certified but it’s Marine certified SAE & ISO. Will I have an issue with that?
Thanks again
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DIYrich
Solar Wizard
I don't think you need ul listing for 12v. I would get an outdoor rated case, and put a big "stop" button inside. Make it easy for the fire fighter, and a protection against a tree branch hitting it.
MikeSpeegle
New Member
How about this? In reality it’s barely larger than single gain outlet. Also thank you!!!
Also the feed is only 12v but the battery bank is 51.2v 1,000ah
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DIYrich
Solar Wizard
I like that.
12v power supply is cheap.
You may be able to piggyback off the RSD.
Inverter should have a 20v RSD circuit.
12v power supply is cheap.
You may be able to piggyback off the RSD.
Inverter should have a 20v RSD circuit.
MikeSpeegle
New Member
Just asked inspector and he said no it specifically has to be UL listed for Solar.
Brucey
Solar Wizard
Your local jurisdiction must be requiring the latest spec which involves estop or outdoor accessible battery shutoff (in addition to remote service disconnect etc). For example the eg4 llv2 "S" version batteries where the circuit breakers can be triggered via a shunt if commanded by a communicating inverters rsd button.
RCinFLA
Solar Wizard
- Joined
- Jun 21, 2020
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You need UL listing in most localities in U.S. if unit is grid interconnected.
You should not need to physically disconnect batteries, other than a normal manual inside structure breaker. You do need an inverter emergency remote shutdown button/switch put outside with proper labelling for firefighting service.
Before you consider those relays you should look up how much current their engagement coil takes. They are usually intended for intermittent service (like running a starter motor or winch) and when left on for long period of time their coil gets very hot.
You can get latching relays. It only consumes coil power long enough to push contact to on or off. This is the type of switches used for generator backup transfer switches.
You should not need to physically disconnect batteries, other than a normal manual inside structure breaker. You do need an inverter emergency remote shutdown button/switch put outside with proper labelling for firefighting service.
Before you consider those relays you should look up how much current their engagement coil takes. They are usually intended for intermittent service (like running a starter motor or winch) and when left on for long period of time their coil gets very hot.
You can get latching relays. It only consumes coil power long enough to push contact to on or off. This is the type of switches used for generator backup transfer switches.
Brucey
Solar Wizard
I think that just covers disconnecting the PV circuits so firefighters can walk the roof without hazards.
You could use a remote triggered midnite 125V 250A breaker with outdoor switch but don't know about UL listing etc and you'd be limited to around 250A.
