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ABC-8-R 8 A 250 Vac Fast-Acting Ceramic Cartridge Fuse
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pEaton ABC-8-R — 8 A, 250 V, fast-acting ceramic cartridge fuse, 200 A at 250 Vac; 10,000 A at 125 Vac; 10,000 A at 125 Vdc interrupting./p
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ABC-8-R 8 A 250 Vac Fast-Acting Ceramic Cartridge Fuse
The ABC-8-R from the maker carries 8 A, rated 125 Vdc, uses a fast-acting element, in a ceramic body.
Technical Data
| Parameter | Rating |
|---|---|
| Part number | ABC-8-R |
| AC interrupting rating | 200 A at 250 Vac; 10,000 A at 125 Vac; 10,000 A at 125 Vdc |
| Typical melting I2t | 116.5 A²s |
| Design standard | UL 248-14 |
| Body | Ceramic tube, 1/4 x 1-1/4 in (6.4 x 31.7 mm) |
| End caps | nickel-plated brass |
| Element | single element |
| Voltage rating, DC | 125 Vdc |
| Typical DC cold resistance | 0.014 Ω |
| Typical voltage drop | 0.19 V |
| Rated current | 8 A |
| Voltage rating | 250 Vac |
Practical Notes
- Interrupting capability is 200 A at 250 Vac; 10,000 A at 125 Vac; 10,000 A at 125 Vdc — 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.
- 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 125 Vdc; a lower-rated part is not a safe substitute.
- Do not upsize beyond 8 A to stop nuisance trips — fix the cause instead.
Application Scenarios
Common installation contexts include:
- EV
- surge
Questions and Answers
What are the ratings of the ABC-8-R?
8 A continuous at 125 Vdc, interrupting rating 200 A at 250 Vac; 10,000 A at 125 Vac; 10,000 A at 125 Vdc.
Is the ABC-8-R fast-acting or time-delay?
It is fast-acting. Expect it to open quickly on overload.
Can the ABC-8-R be used on a higher fault-current circuit?
No — its interrupting rating is 200 A at 250 Vac; 10,000 A at 125 Vac; 10,000 A at 125 Vdc. Choose a part whose breaking capacity exceeds the prospective fault current.
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