What size fuse do I need?

[seatown1two 10+ year member]

Looking at photos, zed draconia II doesn't have any fuses on the outside, will be running front (100x2) for comps and rears (400x1) for sub... Was looking at wiring kits and one that I'm looking at comes with an anl fuse (100 amp). Will that be too high? Should I get a fuse closer to 50 or 60??

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[audiobaun 5,000+ posts]

Looking at photos, zed draconia II doesn't have any fuses on the outside, will be running front (100x2) for comps and rears (400x1) for sub... Was looking at wiring kits and one that I'm looking at comes with an anl fuse (100 amp). Will that be too high? Should I get a fuse closer to 50 or 60??

it would be safe to do a 60,in my opinion...if it blows go to the next size up..you can email/contact zed audio,to get the information

 

[mylows10 5,000+ posts]

80 amp

 

[seatown1two 10+ year member]

So seems like 100 amp might be defeating the purpose of the fuse being there...

 

[Ionakron 10+ year member]

Current Consumption with Sine wave at 4 ohms: 42A

Average current Consumption with Music at 4 ohms: 8 to 15A

I'd think you could base it off that. I could be wrong.

or this

Fuse rating with 4 ohm load: 25A-30A depending on usage

Fuse rating with 2 ohm load: 30A -50A depending on usage

 

[brynm 10+ year member]

From Zeds website:

Specification DRACONIAContinuous Output Power into 2 ohm 200w x 4

Continuous Output Power into 4 ohm 100w x 4

Typical Output Power into 4 ohm per channel (1% THD) 130w x 4

Continuous Output Power 2 channels bridged into 4 ohm 400w x 2

Continuous Output Power 2 channels bridged into 8 ohm 200w x 2

Minimum Speaker Impedance 2 ohm per channel

Minimum Speaker Impedance in Bridge Mode (2 channels) 4 ohm

Power Response at any power into 4 ohms 10-60KHz -2dB

Frequency Response at rated power into 4 ohms 10Hz-30KHz -0.1dB

Input Voltage range for rated power into 4 ohms 0.26 to 8.0 volt

Input Impedance at 2KHz 47K ohm

Noise below rated output (30KHz limited) -98dB

Channel separation at 2KHz >80dB

Damping Factor at 20Hz with 4 ohms >80

Total Harmonic Distortion with 4 ohm 20Hz-20KHz

From 1 watt to rated power. Typically less than 0.05%

Intermodulation Distortion

Phase response at 20KHz Lagging 12 deg

Slew rate (volts per micro second)-In”Flat” mode 12

Low Pass Crossovers (24dB/octave) 55Hz to 4KHz

High Pass Crossovers (24dB/octave) 55Hz-4KHz

Sub Sonic Filter (24dB/octave) 11Hz to 48Hz

Equalization (Zero to +12dB variable control with constant Q) Boost @40Hz with constant Q

Line Outputs No

Protection - Short Circuit, DC, Thermal Yes

Power Source 10-14.5v DC Negative Ground

Current Consumption with Sine wave at 4 ohms 42A

Average current Consumption with Music at 4 ohms 8 to 15A

Idling Current

Fuse rating with 4 ohm load 25A-30A depending on usage

Fuse rating with 2 ohm load **** 30A -50A depending on usage

Size W x H (247mmx55mm/9.7”x2.1”) x L 275mm/10.82” Excludes connectors

Shipping Weight (Kg/Lbs) 5.9/13

http://www.zedaudiocorp.com/pdfs/ZedManual-2011.pdf

 

[seatown1two 10+ year member]

Thanks... Will pick up the wiring kit, along with a new fuse holder and correct fuse rating.

 

[seatown1two 10+ year member]

So according to ZED I should be using a 40amp fuse..

2ch x 125RMS = 250/18 = 13.89

+

1ch x 400RMS = 400/18 = 22.22

=

**36.11**

Does this sound right???

 

[Bettr n' Revrse 5,000+ posts]

Fuse for wire... Those amps are fused...

 

[seatown1two 10+ year member]

been doing a little more reading.... So the fuse at the battery would be to protect the wire from the fuse to the amp right? If so, would a 100 amp fuse suffice for a 4 awg wire??

 

[Rich B 5,000+ posts]

Use the fuse it comes with, its sized by the manufacturer for that wire.