MX7000 Amp Question

[Squad-6]

I need to know if I can power 2 rotators, 3 fast rotators. 1 set of flashers & one set of intersection sweepers off of one 40amp relay powered by a 10 gauge wire. Safe or not?


I have only ever installed strobe & LED bars so I do not know about this much halogen. The owner of the vehicle wants all this to operate off one toggle!.

 

[TNFF412N]

i would step your wire up to at least an 8g wire

 

[Abacus]

5 *55 Watt


2 * 30 Watt flashers?


2 * 30 watt sweepers?


Approx 395 watts add 10% call it 450 watts


so thats about the complete 40 amp relay taken care of. Not sure if you can cold crank a 40 amp relay with 450 start up watts?

 

[ChargerLighting]

The sweepers are 50w, either 27w or 50w flashers & the rotators will be either 50 or 55w if that helps-

 

[toon80]

I have a mx7000 with the following:


2 slow and 2 fast rotators


4 55w takedowns


2 alleys


2 sweepers


4 alt flashers 27w each.


wired through a sw300.


I can run everything but 2 takedowns.


I can't cold start it at the same time, though... Have to get things "On" 1 by 1.... power supply is 50 amps.

 

[Squad-6]

May be adding 2 more flashers. I will tell the guy I recommend putting the flashers & sweeps on one switch & the rotators on another.

 

[twl911]

You can use a single switch, Just add another relay.


The only load your switch will carry is the relay coil.

 

[Squad-6]

You can use a single switch, Just add another relay.

The only load your switch will carry is the relay coil.

Duh! Why didn't I think about that! :mrgreen:

 

[Squad-6]

Ok so after a little discussion the bar is going to be the 5 rotators, front & rear flashers, 4 steady burns front & 4 steady burns rear, & alley lights. Going to be controlled by a 4 switch sw200 fed by an 8 gauge wire. Is this going to work & hold up? The box has a 40amp relay in it for the first switch & I hope it can handle the rotators & flashers.

 

[localhero800]

Just from my experence with my MX.. i would use a 6ga, or 4ga wire.. direct from battery to switchbox..