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Littelfuse 38311000410 1 A Slo-Blo® / Time-Lag (T) TR5® 383 – Bulk 0410
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pLittelfuse 38311000410 — integrated circuit, TR5® radial lead fuse; Short leads; Bulk, 300 V./p
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Littelfuse 38311000410 1 A Slo-Blo® / Time-Lag (T) TR5® 383 – Bulk 0410
Built by Littelfuse, the 38311000410 carries 1 A, rated 300 VAC, uses a time-delay element.
Technical Data
| Parameter | Rating |
|---|---|
| Parameter | Value |
| Manufacturer / Series | Littelfuse / TR5® 383 |
| Part number | 38311000410 |
| Fuse characteristic | Slo-Blo® / Time-Lag (T) |
| Rated current | 1 A |
| Rated voltage | 300 VAC |
| Interrupting capability | Rating-dependent; up to 100 A (300/320/250 VAC per datasheet) |
| Package | TR5® radial lead fuse; Short leads; Bulk |
| Mounting method | Through Hole, Radial |
| Dimensions | Ø8.5 mm × 8.0 mm max; lead Ø0.6 mm |
| Lead pitch | 5.08 mm |
| Operating temperature | -40°C to +85°C |
| Approvals | cRUus E67006; PSE; CE |
| Standards / compliance | IEC 60127-3; UL/CSA/NMX 248-1 & 248-14; cRUus E67006; PSE; CE; VDE 4–5A |
| Environmental | RoHS; lead-free; halogen-free |
| Nominal cold resistance | 0.0625 Ω |
| Nominal melting I²t | 4.85 A²s |
| Packaging / order code | 0410: Bulk, 1,000 pcs; Short leads; lead length 4.3 mm |
| Product status | Verify current orderability with Littelfuse / authorized distribution |
Selection Notes
- Interrupting capability is Rating-dependent; up to 100 A (300/320/250 VAC per datasheet) — 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 300 VAC; a lower-rated part is not a safe substitute.
- Do not upsize beyond 1 A to stop nuisance trips — fix the cause instead.
Part Number and Packing
Order code 38311000410 from Littelfuse, supplied in TR5® radial lead fuse; Short leads; Bulk. Confirm the exact suffix before release.
Q&A
What are the ratings of the 38311000410?
1 A continuous at 300 VAC, interrupting rating Rating-dependent; up to 100 A (300/320/250 VAC per datasheet).
Is the 38311000410 fast-acting or time-delay?
It is time-delay. It tolerates short inrush surges.
Can the 38311000410 be used on a higher fault-current circuit?
No — its interrupting rating is Rating-dependent; up to 100 A (300/320/250 VAC per datasheet). Choose a part whose breaking capacity exceeds the prospective fault current.
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