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Eaton S501-2-R 2 A 250 Vac Quick-Blow Ceramic Fuse
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pEaton S501-2-R — 2 A, 250 V, fast-acting ceramic cartridge fuse, 1,500 A at 250 Vac interrupting./p
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Eaton S501-2-R 2 A 250 Vac Quick-Blow Ceramic Fuse
The S501-2-R from Eaton carries 2 A, rated 250 Vac, in a ceramic body.
Technical Data
| Parameter | Rating |
|---|---|
| Part number | S501-2-R |
| Typical melting I2t | 2 A²s |
| Body | Ceramic tube, 5 x 20 mm |
| Rated current | 2 A |
| AC interrupting rating | 1,500 A at 250 Vac |
| Voltage rating | 250 Vac |
| Typical DC cold resistance | 0.073 Ω |
| Maximum voltage drop | 205 mV |
| Design standard | IEC 60127-2 |
| End caps | silver-plated 50-400 mA, nickel-plated 500 mA-10 A |
| Breaking capacity | 1,500 A at 250 Vac across the whole range |
| Element | single element |
Practical 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 2 A to stop nuisance trips — fix the cause instead.
Application Scenarios
Common installation contexts include:
- EV
Questions and Answers
What are the ratings of the S501-2-R?
2 A continuous at 250 Vac, interrupting rating 1,500 A at 250 Vac.
Can the S501-2-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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