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Eaton MDA-15-R 15 A Time-Delay Fuse - 1/4 x 1-1/4 in, 250 Vac
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pEaton MDA-15-R — 15 A, 250 V, time-delay fuse, 200 A at 250 Vac; 10,000 A at 125 Vac interrupting./p
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Eaton MDA-15-R 15 A Time-Delay Fuse - 1/4 x 1-1/4 in, 250 Vac
Eaton MDA-15-R 15 A Time-Delay Fuse - 1/4 x 1-1/4 in, 250 Vac belongs to the Eaton range. It carries 15 A, rated 250 Vac, uses a time-delay element.
Technical Data
| Parameter | Rating |
|---|---|
| Part number | MDA-15-R |
| End caps | nickel-plated brass |
| Design standard | UL 248-14 |
| Maximum voltage drop | 107 mV |
| Voltage rating | 250 Vac |
| Rated current | 15 A |
| Voltage rating, DC | 125 Vdc |
| Typical DC cold resistance | 5.7 mΩ |
| Body | Ceramic tube, 1/4 x 1-1/4 in (6.3 x 32 mm) |
| Element | single element |
| Typical melting I2t | 336.8 A²s |
| AC interrupting rating | 200 A at 250 Vac; 10,000 A at 125 Vac |
Design Notes
- Interrupting capability is 200 A at 250 Vac; 10,000 A at 125 Vac — confirm the circuit's prospective fault current stays below this.
- Time-delay element rides through motor starting and capacitive inrush without nuisance opening.
- Startup surges of several times rated current are tolerated for a short window.
- Working voltage must stay at or below 250 Vac; a lower-rated part is not a safe substitute.
- Do not upsize beyond 15 A 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 MDA-15-R?
15 A continuous at 250 Vac, interrupting rating 200 A at 250 Vac; 10,000 A at 125 Vac.
Is the MDA-15-R fast-acting or time-delay?
It is time-delay. It tolerates short inrush surges.
Can the MDA-15-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. Choose a part whose breaking capacity exceeds the prospective fault current.
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