Hi Wayne,

When I built test equipment I  would always put a LED and resistor in 
parallel with the fuses. If you saw a lit  LED you immediately knew which fuse 
was 
blown. It works with AC or DC at just  about any voltage as long as you size 
the 
resistors accordingly. A pretty neat  trick to save troubleshooting time.

Best regards,
Andy 

In a  message dated 9/6/2008 3:57:01 A.M. Pacific Daylight Time, 
[email protected]  writes:
Morning Andy,

<snip>

What I wanted to tell you,  ....................

I have connected LED'S into 480, 3 phase  voltage.

These were indicators I needed for boiler and large motor  control systems.
A conventional lamp would have been safer I suppose, but  would not 
last as long as the LED's.

<snip>  




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