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| PartNumber | SPFJ450 | SPFJ450.X | SPFJ400.X |
| Description | Specialty Fuses 1000V 450A SOLAR FUSE | Specialty Fuses 1000V 400A SOLAR FUSE | |
| Manufacturer | Littelfuse Inc. | - | Littelfuse Inc. |
| Product Category | Electrical, Specialty Fuses | - | Electrical, Specialty Fuses |
| Series | POWR-GARDR SPFJ | - | POWR-GARDR SPFJ |
| Packaging | Bulk | - | Bulk |
| Current Rating | 450A | - | 400A |
| Package Case | Cylindrical, Blade Terminals | - | Cylindrical, Blade Terminals |
| Operating Temperature | - | - | - |
| Mounting Type | Holder | - | Holder |
| Features | - | - | - |
| Size Dimension | 2.500" Dia x 8.000" L (63.50mm x 203.20mm) | - | 2.000" Dia x 7.126" L (50.80mm x 181.00mm) |
| Applications | Solar (Photovoltaic) | - | Solar (Photovoltaic) |
| Voltage Rating AC | 600V | - | 600V |
| Voltage Rating DC | 1000V (1kV) | - | 1 kVDC |
| Fuse Type | Cartridge | - | Cartridge |
| Response Time | Fast | - | Fast |
| Class | J | - | J |
| Approvals | CE, cULus, UL, VDE | - | CE, cULus, UL, VDE |
| Breaking Capacity Rated Voltage | 200kA AC, 20kA DC | - | 200kA AC, 10kA DC |
| Product | - | - | Specialty Fuses |
| Type | - | - | Solar Photovoltaic Fuse |
| Mounting Style | - | - | Stud |
| Termination Style | - | - | Bolt Down |
| Length | - | - | 85.7 mm |
| Diameter | - | - | 50.8 mm |
| Product Type | - | - | Solar Photovoltaic Fuse |
| Resistance | - | - | 0.236 Ohms |
| Fuse Size Group | - | - | Class J |
| Indicator Style | - | - | Without Indicator |
| Interrupt Rating | - | - | 200 kA at 600 VAC |
| Body Style | - | - | Round Body Fuses |