Geeky question about extending Inverter supply cables. (1 Viewer)

Jul 1, 2010
3,191
32,352
SW Northumberland
Funster No
12,394
MH
Hymer B 588 DL
Exp
Since September 2010
Bought a Sterling 350w inverter at the Belvoir meet, installed it this afternoon, DC supply cables not quite long enough and I need an inline 60A fuse (why can't dealers tell you this at time of purchase? or don't they know:Angry:)

Anyways, obviously unit needs to be as close to leisure batteries as possible, inverter was supplied with DC leads about 2 foot long, I need at least another 12-18 inches is this a safe length to add?? :Blush:

Many thanks guys
 

pappajohn

LIFE MEMBER
Aug 26, 2007
43,207
48,821
Dark side of the moon
Funster No
172
Exp
Since 2005
yes, but the wire needs to be at least as thick as the original or preferably thicker along its full length....not really feasible though unless you cut off the original as close to the invertor as possible and connect the thicker wire at that point.
a thinner wire will carry more current over a short distance without overheating than a wire of the same size over a longer distance .

if the invertor is 350w peak output, but lower constant output, then at peak output it will draw approx 29 amps so why a 60amp fuse ?

if its 500w peak then it will need at least a 40 amp fuse.
 
OP
OP
Stewart J
Jul 1, 2010
3,191
32,352
SW Northumberland
Funster No
12,394
MH
Hymer B 588 DL
Exp
Since September 2010
yes, but the wire needs to be at least as thick as the original or preferably thicker along its full length....not really feasible though unless you cut off the original as close to the invertor as possible and connect the thicker wire at that point.
a thinner wire will carry more current over a short distance without overheating than a wire of the same size over a longer distance .

if the invertor is 350w peak output, but lower constant output, then at peak output it will draw approx 29 amps so why a 60amp fuse ?

if its 500w peak then it will need at least a 40 amp fuse.

350w continuous 600w peak hence 60a fuse. :Eeek:

Subscribers  do not see these advertisements

 

Join us or log in to post a reply.

To join in you must be a member of MotorhomeFun

Join MotorhomeFun

Join us, it quick and easy!

Log in

Already a member? Log in here.

Latest journal entries

Funsters who are viewing this thread

Back
Top