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Eaton SR-5H-2.5A-AP 2.5 A 250/300 Vac Time-Delay Subminiature Fuse
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pEaton SR-5H-2.5A-AP — 2.5 A, 300 V, time-delay fuse, 100 A at rated voltage, 50 Hz interrupting./p
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Eaton SR-5H-2.5A-AP 2.5 A 250/300 Vac Time-Delay Subminiature Fuse
Eaton SR-5H-2.5A-AP 2.5 A 250/300 Vac Time-Delay Subminiature Fuse belongs to the Eaton range. It uses a time-delay element.
Technical Data
| Parameter | Rating |
|---|---|
| Parameter | Value |
| Orderable part number | SR-5H-2.5A-AP (-AP = 1,000 pcs ammo pack, 12.7 mm pitch) |
| Characteristic | Time-delay (T) |
| In (rated) | 2.5 A |
| Voltage | 250/300 Vac |
| Interrupting rating | 100 A at rated voltage, 50 Hz |
| Agency | cURus E19180 (JDYX2, JDYX8) / VDE / SEMKO / CCC / EK / PSE |
| Design standard | IEC 60127-3 sheet 4 |
| Body | Radial leaded, time-delay, thru-hole, plastic cap and base, UL 94V0 |
| Dissipation at rating | 0.19 W |
| Cold resistance (typical) | 0.025 Ohm |
| Typical melting I2t | 45 A2s |
| Typical voltage drop | 75 mV at rated current |
Design Notes
- Interrupting capability is 100 A at rated voltage, 50 Hz — 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.
Where It Is Used
Typical places this fuse turns up:
- EV
- surge
- transformer
Common Questions
Is the SR-5H-2.5A-AP fast-acting or time-delay?
It is time-delay. It tolerates short inrush surges.
Can the SR-5H-2.5A-AP be used on a higher fault-current circuit?
No — its interrupting rating is 100 A at rated voltage, 50 Hz. Choose a part whose breaking capacity exceeds the prospective fault current.
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