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Eaton SR-5H-630mA-AP 630 mA 250/300 Vac Time-Delay Subminiature Fuse
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pEaton SR-5H-630mA-AP — 630 mA, 300 V, time-delay fuse, 100 A at rated voltage, 50 Hz interrupting./p
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Eaton SR-5H-630mA-AP 630 mA 250/300 Vac Time-Delay Subminiature Fuse
The SR-5H-630mA-AP from Eaton carries 630 mA, rated 250/300 Vac, uses a time-delay element.
Technical Data
| Parameter | Rating |
|---|---|
| Parameter | Value |
| Orderable part number | SR-5H-630mA-AP (-AP = 1,000 pcs ammo pack, 12.7 mm pitch) |
| Interrupting rating | 100 A at rated voltage, 50 Hz |
| Design standard | IEC 60127-3 sheet 4 |
| Agency | cURus E19180 (JDYX2, JDYX8) / VDE / SEMKO / CCC / EK / PSE |
| Typical voltage drop | 120 mV at rated current |
| Dissipation at rating | 0.08 W |
| Body | Radial leaded, time-delay, thru-hole, plastic cap and base, UL 94V0 |
| Rated current | 630 mA |
| Voltage rating | 250/300 Vac |
| Characteristic | Time-delay (T) |
| Typical DC cold resistance | 0.162 Ohm |
| Melting I2t (typical) | 3.5 A2s |
Practical 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.
- Working voltage must stay at or below 250/300 Vac; a lower-rated part is not a safe substitute.
- Do not upsize beyond 630 mA to stop nuisance trips — fix the cause instead.
Application Scenarios
Common installation contexts include:
- adapter
- appliance
- transformer
Questions and Answers
What are the ratings of the SR-5H-630mA-AP?
630 mA continuous at 250/300 Vac, interrupting rating 100 A at rated voltage, 50 Hz.
Is the SR-5H-630mA-AP fast-acting or time-delay?
It is time-delay. It tolerates short inrush surges.
Can the SR-5H-630mA-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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