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Eaton S501-315-R 315 mA Ceramic Fuse 250 Vac, Quick-Blow
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pEaton S501-315-R — 315 mA, 250 V, fast-acting ceramic cartridge fuse, 1,500 A at 250 Vac interrupting./p
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Eaton S501-315-R 315 mA Ceramic Fuse 250 Vac, Quick-Blow
Eaton S501-315-R 315 mA Ceramic Fuse 250 Vac, Quick-Blow belongs to the Eaton range. It carries 315 mA, rated 250 Vac, in a ceramic body.
Technical Data
| Parameter | Rating |
|---|---|
| Part number | S501-315-R |
| Design standard | IEC 60127-2 |
| Body | Ceramic tube, 5 x 20 mm |
| Rated current | 315 mA |
| Typical melting I2t | 0.01 A²s |
| End caps | silver-plated 50-400 mA, nickel-plated 500 mA-10 A |
| Element | single element |
| Voltage rating | 250 Vac |
| Typical DC cold resistance | 3.3 Ω |
| Maximum voltage drop | 1,400 mV |
| Breaking capacity | 1,500 A at 250 Vac across the whole range |
| AC interrupting rating | 1,500 A at 250 Vac |
Design Notes
- Interrupting capability is 1,500 A at 250 Vac — confirm the circuit's prospective fault current stays below this.
- Ceramic body holds higher breaking capacity than glass at the same footprint.
- It is the usual choice where prospective fault current is high.
- Working voltage must stay at or below 250 Vac; a lower-rated part is not a safe substitute.
- Do not upsize beyond 315 mA to stop nuisance trips — fix the cause instead.
Where It Is Used
Typical places this fuse turns up:
- EV
Common Questions
What are the ratings of the S501-315-R?
315 mA continuous at 250 Vac, interrupting rating 1,500 A at 250 Vac.
Can the S501-315-R be used on a higher fault-current circuit?
No — its interrupting rating is 1,500 A at 250 Vac. Choose a part whose breaking capacity exceeds the prospective fault current.
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