I modeled them below. All 50A, curves are slightly different
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| Fused Disconnect Modeling https://brainfiller.com/arcflashforum/viewtopic.php?f=23&t=6397 |
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| Author: | arcflashprimero [ Thu Jan 29, 2026 1:28 pm ] |
| Post subject: | Fused Disconnect Modeling |
I am currently on a site that has a disconnect with 3 different fuses inside. How would you model this? |
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| Author: | bbaumer [ Thu Jan 29, 2026 5:09 pm ] |
| Post subject: | Re: Fused Disconnect Modeling |
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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| Author: | arcflashprimero [ Fri Jan 30, 2026 3:50 am ] | ||
| Post subject: | Re: Fused Disconnect Modeling | ||
I modeled them below. All 50A, curves are slightly different
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| Author: | Win Engineer [ Fri Jan 30, 2026 6:49 am ] |
| Post subject: | Re: Fused Disconnect Modeling |
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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| Author: | bbaumer [ Fri Jan 30, 2026 8:41 am ] |
| Post subject: | Re: Fused Disconnect Modeling |
Win Engineer wrote: 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. This. ^^^^^^ |
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