need more help quick!

[tippykid98cztom]

origional post: http://therangerstation.com/forums/showthread.php?t=80333

gave it another shot trying to get my relay to work for my 4 hella 500w lights. i tested it with a meeter. it has a good ground, it has constant power, and when i flip the switch there is power to that pole on the relay. only pole that dosent show any power is the load which is to my lights. i tryed 2 relays and its the same with both. what is the problem? or how can i test the relay.

I just looked at my fuseblock that the #30 wire whick is constant power runs to and the fuse was blown. I put another 40 amp fuse in and fliped the switch. it took about 4 seconds then blew the fuse. what do I do?

 

[TomJenks]

origional post: http://therangerstation.com/forums/showthread.php?t=80333

gave it another shot trying to get my relay to work for my 4 hella 500w lights. i tested it with a meeter. it has a good ground, it has constant power, and when i flip the switch there is power to that pole on the relay. only pole that dosent show any power is the load which is to my lights. i tryed 2 relays and its the same with both. what is the problem? or how can i test the relay.

I just looked at my fuseblock that the #30 wire whick is constant power runs to and the fuse was blown. I put another 40 amp fuse in and fliped the switch. it took about 4 seconds then blew the fuse. what do I do?

Surely thats a typo. By my caculations that kind of load is pulling around 140 amps! If thats the case no wonder your popping fuses. Try hooking one up at a time to see what happens.

 

[red93terror]

are they double pole double tthrow relays or dp single throw relays? dpdt will ease the load on the battery/circuit alot more than a dpst

 

[red93terror]

oh, almost forgot, try running thicker gauge wire, a relay per light, and straight to the battery with an inline fuse

 

[tippykid98cztom]

i just hooked one up at a time. it did good with one light then i hooked up 2 lights and the fuse blew so maybe a relay for each light?

 

[TomJenks]

i just hooked one up at a time. it did good with one light then i hooked up 2 lights and the fuse blew so maybe a relay for each light?

Sounds like you're getting somewhere. What kind of amp load are your relays rated for btw?

here's a link to some good ones:

http://www.parts-express.com/pe/showdetl.cfm?Partnumber=330-079

I've used these and they work excellent.

 

[Roadkill]

Well, a 500W bulb would be pulling 41.67A @ 12VDC. So your wiring HAS to be heavy enough to handle 50A minimum, as well your relays MUST be able to handle 50A load.

It is doubtful your battery charge will last long and your alternator will have an issue trying to keep up with the load of all of those on at any one time.