Breaker issues, your thoughts?

Jason Joseph

Jason Joseph

Sophomore
Sep 27, 2011
306
34
28
New York
facebook.com
Own a Six-2 racpac with 50a 125/250v in and 4 30a breakers for the amp rack. The problem that I am having is that every now and again on a heavy bass note the breaker would chip. Amp is Lab Gruppen FP14k.. Do you think its a thermal issue and i need to check what gauge wires are used for the 30a connection, or it is something else?

Your thoughts?
 
Last edited:
Re: Breaker issues, your thoughts?

Jason Joseph said:
Own a Six-2 racpac with 50a 125/250v in and 4 30a breakers for the amp rack. The problem that I am having is that every now and again on a heavy bass note the breaker would chip. Amp is Lab Gruppen FP14k.. Do you think its a thermal issue and i need to check what gauge wires are used for the 30a connection, or it is something else?

Your thoughts?
Click to expand...

What are you running on the FP14K when it trips the breaker?
 
Re: Breaker issues, your thoughts?

Okay ill put all fans blowing out but i doubt that is the case. Next step is to take apart the panel and ensure that the 30a breakers have 10awg wires. Maybe time for an upgrade to 8awg since the Labs can draw up to 65a on peaks..
 
Re: Breaker issues, your thoughts?

Jason Joseph said:
Okay ill put all fans blowing out but i doubt that is the case. Next step is to take apart the panel and ensure that the 30a breakers have 10awg wires. Maybe time for an upgrade to 8awg since the Labs can draw up to 65a on peaks..
Click to expand...

Well, I think the amps are drawing more current than you realize. It's not the occasional peak that is the problem, it's the sustained, very low note. The amp PSU is trying to convert enough AC service to keep the amp running at full output.

Going to a larger wire gauge isn't likely to stop the over-current situation.

Are you powering the amps with 120v or 240v?
 
Re: Breaker issues, your thoughts?

Tim McCulloch said:
Well, I think the amps are drawing more current than you realize. It's not the occasional peak that is the problem, it's the sustained, very low note. The amp PSU is trying to convert enough AC service to keep the amp running at full output.

Going to a larger wire gauge isn't likely to stop the over-current situation.

Are you powering the amps with 120v or 240v?
Click to expand...

240v and yeah its the sustained notes that cause the breaker to trip every now and again. So the only way around it is to upgrade both wire and breakers for the two labs then.. The other issue now is that I believe six-2.com is no longer in business to sourcing out the replacement breakers will be difficult..
 
Re: Breaker issues, your thoughts?

You said your running you amps at 240,I can't see how thats possible with 6 breakers and 6 protected circuits, So i wanted to see if the twist locks are 3 or 4 conductor
 
Re: Breaker issues, your thoughts?

Jason Joseph said:
Amps are US version 115v. 3 wire 30a twist lock, sorry for the confusion..
Click to expand...

Ok, look at the link I sent you and read what it says. In the long run it looks like LG sent out a amp capable of 14kw, but does not allow it do to lack of available input current.

Good luck.

Try doing some homemade fixing and replace the 2 breakers running your sub amps with a cuttler hammer or square d 30 amp braeker. Or call LG and see how to get the claimed power out of the amp safelly with a 30 amp supply. As I'm concerned here. Its like a 900 hp nascar engine with a restictor plate on it., basically 450 hp,
 
Top Bottom