Eaton ABC-1-R 1 A Fuse 250 Vac Fast-Acting (1/4 x 1-1/4 in)

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pEaton ABC-1-R — 1 A, 250 V, fast-acting fuse, 35 A at 250 Vac; 10,000 A at 125 Vac; 10,000 A at 125 Vdc interrupting./p

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250V Fuse Eaton Fuse Ceramic Tube Fuse Fast-Acting Fuse 1A Fuse

Product Details
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Eaton ABC-1-R 1 A Fuse 250 Vac Fast-Acting (1/4 x 1-1/4 in)

Built by Eaton, the ABC-1-R carries 1 A, rated 125 Vdc, uses a fast-acting element.

Technical Data

Parameter	Rating
Part number	ABC-1-R
Design standard	UL 248-14
Voltage rating, DC	125 Vdc
End caps	nickel-plated brass
Typical voltage drop	0.3 V
Element	single element
AC interrupting rating	35 A at 250 Vac; 10,000 A at 125 Vac; 10,000 A at 125 Vdc
Rated current	1 A
Voltage rating	250 Vac
Typical DC cold resistance	0.195 Ω
Body	Ceramic tube, 1/4 x 1-1/4 in (6.4 x 31.7 mm)
Typical melting I2t	0.431 A²s

Selection Notes

Interrupting capability is 35 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.
Working voltage must stay at or below 125 Vdc; a lower-rated part is not a safe substitute.
Do not upsize beyond 1 A to stop nuisance trips — fix the cause instead.

Typical Applications

Engineers usually specify it for these duties:

EV

Q&A

What are the ratings of the ABC-1-R?

1 A continuous at 125 Vdc, interrupting rating 35 A at 250 Vac; 10,000 A at 125 Vac; 10,000 A at 125 Vdc.

Is the ABC-1-R fast-acting or time-delay?

It is fast-acting. Expect it to open quickly on overload.

Can the ABC-1-R be used on a higher fault-current circuit?

No — its interrupting rating is 35 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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