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arcflashprimero
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Post subject: Fused Disconnect Modeling  Posted: Thu Jan 29, 2026 1:28 pm |
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Joined: Thu Dec 18, 2025 3:21 pm
Posts: 9
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I am currently on a site that has a disconnect with 3 different fuses inside. How would you model this?
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bbaumer
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Post subject: Re: Fused Disconnect Modeling Posted: Thu Jan 29, 2026 5:09 pm |
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Joined: Fri Jul 08, 2016 10:01 am
Posts: 462
Location: Indiana
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Got a pic? Like 3 different brands but same amp and type or 3 different types or 3 different amp ratings or some combination of the above?
For example, (from memory) Buss Frs-R-100, Gould trs100r and Littelfuse FLSR100? All are the same curve. Pick one.
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arcflashprimero
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Post subject: Re: Fused Disconnect Modeling Posted: Fri Jan 30, 2026 3:50 am |
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Joined: Thu Dec 18, 2025 3:21 pm
Posts: 9
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I modeled them below. All 50A, curves are slightly different
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Screenshot 2026-01-30 054720.png [ 27.33 KiB | Viewed 5 times ]
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Win Engineer
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Post subject: Re: Fused Disconnect Modeling Posted: Fri Jan 30, 2026 6:49 am |
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Joined: Tue Jun 14, 2022 11:35 am
Posts: 30
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As long as they are all RK5 fuses with the proper voltage rating, I generally just pick one and put a note on the drawing that the switch has fuses from different manufactures. If you have RK5 and RK1 fuses in the same switch I will model with the RK5.
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