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To ensure accuracy, please note that images may be representative. Refer to the product data sheet for detailed specifications.
| Manufacturer | LITTELFUSE |
| Manufacturer Product Number | SPXI045.TXB |
| Description | Industrial Fuse; 45 A; gPV; Fast-Acting; 20.65x163.58mm; In-line (crimp); 1500 VDC |
| Datasheet | Download Datasheet |
The Littelfuse SPXI045.TXB is a 45 A fast-acting photovoltaic (gPV) fuse, rated 1500 VDC.
A gPV fuse is rated for photovoltaic strings: DC voltage up to the array's open-circuit level and the low fault currents of solar panels. A fast-acting fuse opens quickly on an overload, for resistive and lightly loaded circuits with little switch-on surge.
Interrupting rating: 50 kA. Pre-arcing I²t 588 A²s.
Construction: 20.65 x 163.58 mm diameter x length; in-line bigger crimp barrel, 6 AWG.
It is UL Recognized and TÜV certified.
| Category | |
| Manufacturer | LITTELFUSE |
| Model | SPXI |
| Current Rating (A) | 45 |
| Size | 20.65 x 163.58 mm (dia. x length) |
| Speed | Fast-Acting |
| UL Class | Photovoltaic (gPV) |
| Voltage Rating | 1500 VDC |
| Breaking Capacity | 50 kA |
| Body Material | Melamine |
| Mounting Style | In-line (crimp) |
| Terminal Type | In-line bigger crimp barrel, 6 AWG |
| Approvals | UL Recognized, TUV |
| Melting I²t (A²s) | 588 |
| Cold Resistance (Ω) | 0.00458 |
| End Cap Material | Copper alloy (nickel plated) |