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Eaton ABC-20-R 20 A Fuse 250 Vac Quick-Blow (1/4 x 1-1/4 in)
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pEaton ABC-20-R — 20 A, 250 V, fast-acting fuse, 400 A at 250 Vac; 1,000 A at 125 Vac; 10,000 A at 125 Vdc interrupting./p
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Eaton ABC-20-R 20 A Fuse 250 Vac Quick-Blow (1/4 x 1-1/4 in)
Eaton ABC-20-R 20 A Fuse 250 Vac Quick-Blow (1/4 x 1-1/4 in) belongs to the Eaton range. It carries 20 A, rated 250 Vac.
Technical Data
| Parameter | Rating |
|---|---|
| Part number | ABC-20-R |
| Typical voltage drop | 0.1 V |
| End caps | nickel-plated brass |
| Voltage rating | 250 Vac |
| Rated current | 20 A |
| Typical DC cold resistance | 0.00366 Ω |
| Voltage rating, DC | 125 Vdc |
| AC interrupting rating | 400 A at 250 Vac; 1,000 A at 125 Vac; 10,000 A at 125 Vdc |
| Body | Ceramic tube, 1/4 x 1-1/4 in (6.4 x 31.7 mm) |
| Element | single element |
| Design standard | UL 248-14 |
| Typical melting I2t | 550.8 A²s |
Design Notes
- Interrupting capability is 400 A at 250 Vac; 1,000 A at 125 Vac; 10,000 A at 125 Vdc — confirm the circuit's prospective fault current stays below this.
- Working voltage must stay at or below 250 Vac; a lower-rated part is not a safe substitute.
- Do not upsize beyond 20 A to stop nuisance trips — fix the cause instead.
Where It Is Used
Typical places this fuse turns up:
- EV
- surge
Common Questions
What are the ratings of the ABC-20-R?
20 A continuous at 250 Vac, interrupting rating 400 A at 250 Vac; 1,000 A at 125 Vac; 10,000 A at 125 Vdc.
Can the ABC-20-R be used on a higher fault-current circuit?
No — its interrupting rating is 400 A at 250 Vac; 1,000 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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