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fuse size


By garyc, Section Controls
Posted on Sun Sep 9th, 2007 at 06:41:46 PM MST
fuse size

On my solar panel label is says... fuse 15amp. Does this mean that I should use a 15 amp fuse? Because if I do the math I only need a 6 or 8 amp fuse. 150 watt panel 24v
fuse size | 3 comments (3 topical, 0 editorial)

Re: fuse size (3.00 / 0) (#1)
by Nando (nando37-at-tx-dot-rr-dot-com Correct theanti-spam) on Sun Sep 9th, 2007 at 01:37:46 PM MST
(User Info)

USE 15 AMPS

it is ultimate protection.

Nando



Re: fuse size (3.00 / 0) (#2)
by richhagen (richhagen (a t) Juno.com) on Mon Sep 10th, 2007 at 05:56:17 AM MST
(User Info)

Make sure that you use conductors sufficient to handle 15 amps and use the recommended fuse size.  If you are forced to use a smaller conductor, use a fuse that will not allow more current through that conductor than it is rated for.  The fuse needs to be the weakest link.  Rich
'A Joule saved is a Joule made'


Re: fuse size (3.00 / 0) (#3)
by Ungrounded Lightning Rod on Tue Sep 11th, 2007 at 02:24:12 PM MST
(User Info)

The fuse also protects the panel and wiring from currents driven from other sources - such as other panels in the array, the battery, etc.  It may not be adequate to prevent damage to the panel but it WILL prevent fire.

The value specified is sufficiently above the panel's short-circuit output current that the panel can never blow the fuse with its own output.  So it is there solely to limit damage due to other malfunctions.



fuse size | 3 comments (3 topical, 0 editorial)
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