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Eaton C517-3-R 3 A 5 x 15 mm Fast-Acting Glass Tube Fuse
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pEaton C517-3-R — 3 A, 250 V, fast-acting glass cartridge fuse, 5 x 15 mm, 100 A at 250 Vac; 10000 A at 125 Vac interrupting./p
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Eaton C517-3-R 3 A 5 x 15 mm Fast-Acting Glass Tube Fuse
Eaton C517-3-R 3 A 5 x 15 mm Fast-Acting Glass Tube Fuse belongs to the Eaton range. It carries 3 A, rated 250 Vac, uses a fast-acting element, in a glass body, measuring 5 x 15 mm.
Technical Data
| Parameter | Rating |
|---|---|
| Parameter | Value |
| Orderable part number | C517-3-R |
| Rated current | 3 A |
| Voltage rating | 250 Vac |
| Typical DC cold resistance | 0.0345 ohm |
| Interrupting rating | 100 A at 250 Vac; 10000 A at 125 Vac |
| Typical melting I2t | 5.87 A²s |
| Max voltage drop at rated current | 141.7 mV |
| Body | 5 x 15 mm axial |
| Terminals | Tinned copper leads |
| Speed | Fast-Acting (UL 248-14) |
| RoHS | Compliant (-R suffix) |
Design Notes
- Interrupting capability is 100 A at 250 Vac; 10000 A at 125 Vac — confirm the circuit's prospective fault current stays below this.
- Fast element suits resistive and semiconductor loads rather than motors with high inrush.
- Because it opens within milliseconds, downstream semiconductors see less let-through energy.
- Glass body lets you inspect the element after a fault.
- Best kept for lower fault-current circuits where visual diagnosis matters.
- Footprint 5 x 15 mm — check clip or holder compatibility before substitution.
- Working voltage must stay at or below 250 Vac; a lower-rated part is not a safe substitute.
- Do not upsize beyond 3 A to stop nuisance trips — fix the cause instead.
Where It Is Used
Typical places this fuse turns up:
- EV
- lighting
- transformer
Common Questions
What are the ratings of the C517-3-R?
3 A continuous at 250 Vac, interrupting rating 100 A at 250 Vac; 10000 A at 125 Vac.
Is the C517-3-R fast-acting or time-delay?
It is fast-acting. Expect it to open quickly on overload.
What size is the C517-3-R?
It measures 5 x 15 mm. Match the holder or clip to this footprint.
Can the C517-3-R be used on a higher fault-current circuit?
No — its interrupting rating is 100 A at 250 Vac; 10000 A at 125 Vac. Choose a part whose breaking capacity exceeds the prospective fault current.
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