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Fuse rating question


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Posted

Ok my mate is running a sundown saz 1500d amp @ 1 ohm with an 80 amp fuse. I am surprised he has never blown his use up to now lol. Question: For his fuse not to have blown does this mean he is not running full 1500 rms. Cause to my understanding he should have a 150 amp fuse I think.

Vw Polo

Pioneer Deh-6050UB

Sundown Saz-3500d

DD Audio 9500 15''

5.5 cubic feet box with 10 inch port @ 38hz

I live to hear the Bass drop!!!

Posted

Look up time delay fuses

time delay fuse: A fuse that does not break the circuit during the momentary overload that can happen when an electric motor starts up. If the overload continues, the fuse blows, shutting off the circuit.

Music is not a single constant sine wave, it changes and so will the power usage.

Posted

- Uh, ...

Zeke

'14

2003 Chevy Monte Carlo SS

MONTEside00030001.jpg

Vehicle Details & Mod List: http://www.stevemeadedesigns.com/board/garage/vehicle/1703-chevrolet-monte-carlo-ss/

Audio Build Log: http://www.stevemeadedesigns.com/board/topic/143276-2003-chevy-monte-carlo-ss-audio-build-ib-build

Pioneer FH-P8000BT

Infinity Kappa Perfect 6.1

Fi IB3 (Two 12", 2-ohm SVC)

RF T400-2 & T500-1bdCP

MechMan S Series 240A

XS Power D3400 & D975

311-vector-logo_zps0d152f73.png sutliffSig_zpsb1df26dd.png

Posted

Look up time delay fuses

time delay fuse: A fuse that does not break the circuit during the momentary overload that can happen when an electric motor starts up. If the overload continues, the fuse blows, shutting off the circuit.

Music is not a single constant sine wave, it changes and so will the power usage.

Thanks that clears up a lot. So it could be that he is pulling over the fuse limit but not constant current. Great info :)

Vw Polo

Pioneer Deh-6050UB

Sundown Saz-3500d

DD Audio 9500 15''

5.5 cubic feet box with 10 inch port @ 38hz

I live to hear the Bass drop!!!

Posted

Ok my mate is running a sundown saz 1500d amp @ 1 ohm with an 80 amp fuse. I am surprised he has never blown his use up to now lol. Question: For his fuse not to have blown does this mean he is not running full 1500 rms. Cause to my understanding he should have a 150 amp fuse I think.

This amp http://www.sundownaudio.com/index.php/products/amplifiers/item/saz-1500d-v3.html , correct?

... & running, from what I can figure, an external ANL fuse?

Zeke

'14

2003 Chevy Monte Carlo SS

MONTEside00030001.jpg

Vehicle Details & Mod List: http://www.stevemeadedesigns.com/board/garage/vehicle/1703-chevrolet-monte-carlo-ss/

Audio Build Log: http://www.stevemeadedesigns.com/board/topic/143276-2003-chevy-monte-carlo-ss-audio-build-ib-build

Pioneer FH-P8000BT

Infinity Kappa Perfect 6.1

Fi IB3 (Two 12", 2-ohm SVC)

RF T400-2 & T500-1bdCP

MechMan S Series 240A

XS Power D3400 & D975

311-vector-logo_zps0d152f73.png sutliffSig_zpsb1df26dd.png

Posted

Ok my mate is running a sundown saz 1500d amp @ 1 ohm with an 80 amp fuse. I am surprised he has never blown his use up to now lol. Question: For his fuse not to have blown does this mean he is not running full 1500 rms. Cause to my understanding he should have a 150 amp fuse I think.

This amp http://www.sundownaudio.com/index.php/products/amplifiers/item/saz-1500d-v3.html , correct?

... & running, from what I can figure, an external ANL fuse?

Yes you very correct. Any input over the same.

Vw Polo

Pioneer Deh-6050UB

Sundown Saz-3500d

DD Audio 9500 15''

5.5 cubic feet box with 10 inch port @ 38hz

I live to hear the Bass drop!!!

Posted

Then I do not know what time-delay fuses have to do with your OP.

Zeke

'14

2003 Chevy Monte Carlo SS

MONTEside00030001.jpg

Vehicle Details & Mod List: http://www.stevemeadedesigns.com/board/garage/vehicle/1703-chevrolet-monte-carlo-ss/

Audio Build Log: http://www.stevemeadedesigns.com/board/topic/143276-2003-chevy-monte-carlo-ss-audio-build-ib-build

Pioneer FH-P8000BT

Infinity Kappa Perfect 6.1

Fi IB3 (Two 12", 2-ohm SVC)

RF T400-2 & T500-1bdCP

MechMan S Series 240A

XS Power D3400 & D975

311-vector-logo_zps0d152f73.png sutliffSig_zpsb1df26dd.png

Posted

Those external fuses do not have time-delay?? I think he meant it doesn't blow cause of that??

Vw Polo

Pioneer Deh-6050UB

Sundown Saz-3500d

DD Audio 9500 15''

5.5 cubic feet box with 10 inch port @ 38hz

I live to hear the Bass drop!!!

Posted

No, ... the straight blow when the current exceeds their rating - a split-second. No different than the little, dual-bladed fuses that essentially run everything in your car these days ... besides relays.

Zeke

'14

2003 Chevy Monte Carlo SS

MONTEside00030001.jpg

Vehicle Details & Mod List: http://www.stevemeadedesigns.com/board/garage/vehicle/1703-chevrolet-monte-carlo-ss/

Audio Build Log: http://www.stevemeadedesigns.com/board/topic/143276-2003-chevy-monte-carlo-ss-audio-build-ib-build

Pioneer FH-P8000BT

Infinity Kappa Perfect 6.1

Fi IB3 (Two 12", 2-ohm SVC)

RF T400-2 & T500-1bdCP

MechMan S Series 240A

XS Power D3400 & D975

311-vector-logo_zps0d152f73.png sutliffSig_zpsb1df26dd.png

Posted

That's what I thought too. So in my OP it means my mates amp has never drawn over 80 amps right? and that is why the fuse has never blown. So it could be that the electrical isn't supplying enough current, am I right??

Vw Polo

Pioneer Deh-6050UB

Sundown Saz-3500d

DD Audio 9500 15''

5.5 cubic feet box with 10 inch port @ 38hz

I live to hear the Bass drop!!!

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