Jul 1, 2013 · The fuse link wire small diameter portion of the distance between the fuse terminals will be longer on a 250 volt fuse, while a 24 volt or lower fuse could have a shorter "notch" with reduced cross-sectional area and high resistance.

Jan 19, 2007 · Every-once-in-awhile, I get a call out for a 401, 501, 601 amp fuse. As per UL 248, fuses are designed to hold 110% of their rating continously. Some fuses are also rated to carry 500% for 10-20 seconds to ignore the motor inrush, however clear within 1/2 …

Oct 25, 2014 · The original post said that the 30 amp circuit fed a 20 amp fuse and the conductors on the load side of the 20 amp fuse fed some receptacles, the 30 amp circuit continued to a 15 amp fuse and conductors on the load side of the 15 amp fuse fed light fixtures. That is a feeder and a branch circuits.

Jun 24, 2011 · Since the next standard size is 35 amps, you can use a 35-amp breaker. If it's a fuse, I have two choices: a 'fast' fuse or a 'time delay' fuse. A 'fast' fuse can be as large as 3 x 13.6, or 40.8 amps. Next standard size is a 45-amp 'instant-trip' fuse. If I choose the far more preferred 'dual element' or 'time delay' fuse, I use 1.75 x 13.6 ...

Jul 12, 2018 · AS/AF for fused switches means Amp Switch /Amp Fuse. So for example 600AS/500AF means you have a 600A rated switch holding a 500A rated fuse. The switches come in only a certain number of switch sizes; typical for North America (NEMA KS-1 design specs) is 30, 60, 100, 200, 400, 600, 800, 1200, 1600, but not all mfrs offer all of those sizes ...

Oct 30, 2013 · Hello, Which fuse to select, RK1 or RK5? I want to select 15 amp fuse, but whats the difference between Rk1 and Rk2? 15amps is the min circuit amps for a/c unit. RLA is 49.50amps. 480V three phase. My wired is sized for 15amps

Aug 5, 2003 · Hello everyone. Is is safe to plug a 15 amp product into a 20 amp circuit? here is the scenario. 20 amp dedicated circuit. Plugged into that is a 15 amp surge protector (panamax). home theater components pluggeg into that. also, lets …

Apr 22, 2013 · I can't remember the brand of that panel as I have run into them before, the pullout on the far left is like an optional main which in the ones I have worked on was 100 amp with the flat blade contacts on each end of the fuse, it might be a Wadsworth, most 60 amp panels had two pullouts and 4 to 6 Edison base fuses where the 100 amp panels had ...

Aug 8, 2012 · Wouldn't it then be a matter of E x I that would influence how fast the fuse element melts and clears as a 60a fuse is a 60 amp fuse whether it's applied a 208v of 600v. Again, I agree that we are talking theory and it may be like shooting a dead horse but it make for an interesting discussion never the less.

May 29, 2020 · From the load side of this fuse block that will be protected by the 550 amp high speed fuses we will have to run parallel conductors in a single conduit out to the air compressor. Can these parallel conductors still be sized by the FLA of the air compressor X 125% after derating .80 for the 6 current carrying conductors in one conduit.