3 * 2awg meaning

[alvirtuoso]

What does 3*2awg wire mean?

Should I connect all 3 wires to a single terminal?
Or should i twist them together crimped in a single round connector(if it fits)?

My Growatt 12KW inverter manual minimum recommendation is to use that for Inverter(12kw) & Battery(48v) connection.

Growatt 250V Dual PV Input – 48V 12000T MPV 12kW Split Phase 120V/240V output (100A at 120V ,50A at 240V) – here in Dec – Watts247.com

watts247.com

 

[corn18]

Saw this on the website you linked:

• Battery , 12000W / 48V = 250A x 1.25 = 300A DC Breaker to battery bank. (3 x 2AWG)

That to me means 3 cables. Each is 2 AWG. All have their own connectors on each end. Stack them on the connector terminal.

Makes me wonder why they don't just use 2x2/0 or 1x4/0.

 

[alvirtuoso]

Saw this on the website you linked:

• Battery , 12000W / 48V = 250A x 1.25 = 300A DC Breaker to battery bank. (3 x 2AWG)

That to me means 3 cables. Each is 2 AWG. All have their own connectors on each end. Stack them on the connector terminal.

Makes me wonder why they don't just use 2x2/0 or 1x4/0.

Thank you very much!

 

[Daveyclimber]

Seems weird to have 3 smaller wires instead of up sizing. I have the same inverter waiting to be hooked up. Great question. Any ideas why they state 3 wires? I planned on running 4/0 to my bank

 

[time2roll]

I would go with three separate lugs. I don't like combining a high amp connection like this into a single lug.

 

[time2roll]

Seems weird to have 3 smaller wires instead of up sizing. I have the same inverter waiting to be hooked up. Great question. Any ideas why they state 3 wires? I planned on running 4/0 to my bank

My chart shows slightly lower cir-mils with 3x #2 and about 10% more ampacity compared to 4/0. I think you are fine with 4/0.

 

[Rednecktek]

Or should i twist them together crimped in a single round connector(if it fits)?

It'll never fit and crimp down right. You'll want to go with individual terminals or the larger wire to get your ampacity.

The reason a lot of places call for multiple smaller cables is 1: Finding something like the larger 4/0 size in copper is really hard and expensive (as opposed to the local auto parts store), and 2: routing & crimping 4/0 wire is a PITA.