How to select the proper fuse size for car audio?
Class D amps are about 80% efficient, so take your figure from your class D amp, 125amps, and multiply it by .2 (or 20%) to add efficiency. 125amps (from the total RMS/12 of the class D amp) + 25amps (the class D efficiency) which gives you 150amps. So your 1500watt class D amp will draw around 150amps.
What happens when the fuse blows on an amp?
If the fuse blows because the current that the amps peak at is flowing threw it than the fuse did it’s job. Sure most amps have internal fuses, and the main job the the inline fuse is to protect the wire, I’d still want the extra protection.
How much does a fuse affect the sound?
Moving on, Bob Cordell is his great book “Designing Audio Power Amplifies” did measure fuse THD in an audio output stage. It’s section ‘13.11 Fuse, Relay and Connector Distortion’ page 268. “At 20 Hz, amplifier distortion due to the fuse is calculated to be 0.0033 %.” Click to expand…
Do you know the point of a fuse?
The point of a fuse is to have the fuse open before this wire burns. 2.) Next, you have to understand the point of the fuse as explained earlier, so obviously you want to make sure the fuse is not larger than the max. capacity of the wire, as we want the fuse to open (or blow/break are other terms) before the wire burns.
How many amps does a automotive fuse have?
Automotive Electronics Maximum Amperage: 3 amp Maximum Amperage: 30 amp Maximum Amperage: 4 amp Fusible Link 155Results Sort by:Top Sellers Top SellersMost PopularPrice Low to HighPrice High to LowTop Rated Products Get It Fast In Stock at Store Today (56) Cumberland & nearby stores Availability Hide Unavailable Products Department Electrical
Where to get free fuses for power distribution?
Fuses – Power Distribution – The Home Depot Get free shipping on qualified Fuses or Buy Online Pick Up in Store today in the Electrical Department. #1 Home Improvement Retailer Store Finder
Where are the fuses in a power panel?
These fuses are typically found in power panelboards, motor control centers, combination starters and machinery disconnects. See More See Full Product Description Close
What’s the maximum amperage for a power distribution fuse?
Maximum Amperage: 4 amp Fusible Link 155Results Sort by:Top Sellers Top SellersMost PopularPrice Low to HighPrice High to LowTop Rated Products Get It Fast In Stock at Store Today (56) Cumberland & nearby stores Availability Hide Unavailable Products Department Electrical Power Distribution Fuses Brand Cooper Bussmann (149) GE (6) Klein Tools (7)