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| Part Number | PSR031FS0550Z | PSR031US0550Z | PSR031DS0550Z | PSR031FS0250Z | PSR031FS0350Z | PSR031FS0450Z | PSR031FS0500Z |
|---|---|---|---|---|---|---|---|
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. |
| Product Status | Active | Active | Active | Active | Active | Active | Active |
| Mounting Type | Bolt Mount | Bolt Mount | Bolt Mount | Bolt Mount | Bolt Mount | Bolt Mount | Bolt Mount |
| Fuse Type | Square | Square | Square | Square | Square | Square | Square |
| Current Rating (Amps) | 550A | 550A | 550A | 250A | 350A | 450A | 500A |
| Voltage Rating - AC | 700 V | 700 V | 700 V | 700 V | 700 V | 700 V | 700 V |
| Voltage Rating - DC | 600 V | 600 V | 600 V | 600 V | 600 V | 600 V | 600 V |
| Response Time | Fast Blow | Fast Blow | Fast Blow | Fast Blow | Fast Blow | Fast Blow | Fast Blow |
| Applications | Semiconductors | Semiconductors | Semiconductors | Semiconductors | Semiconductors | Semiconductors | Semiconductors |
| Features | - | Indicating | Indicating | - | - | - | - |
| Class | - | - | - | - | - | - | - |
| Approval Agency | CCC, CE, cURus, UL | CE, cURus, UL | CCC, CE, cURus, UL | CCC, CE, cURus, UL | CCC, CE, cURus, UL | CCC, CE, cURus, UL | CCC, CE, cURus, UL |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C |
| Breaking Capacity @ Rated Voltage | 200kA AC, 150kA DC | 200kA AC, 150kA DC | 200kA AC, 150kA DC | 200kA AC, 150kA DC | 200kA AC, 150kA DC | 200kA AC, 150kA DC | 200kA AC, 150kA DC |
| Package / Case | - | - | - | - | - | - | - |
| Size / Dimension | 1.969" L x 2.028" W x 2.264" H (50.00mm x 51.50mm x 57.50mm) | 1.898" L x 2.028" W x 2.264" H (48.20mm x 51.50mm x 57.50mm) | 1.898" L x 2.028" W x 2.264" H (48.20mm x 51.50mm x 57.50mm) | 1.969" L x 2.028" W x 2.264" H (50.00mm x 51.50mm x 57.50mm) | 1.969" L x 2.028" W x 2.264" H (50.00mm x 51.50mm x 57.50mm) | 1.969" L x 2.028" W x 2.264" H (50.00mm x 51.50mm x 57.50mm) | 1.969" L x 2.028" W x 2.264" H (50.00mm x 51.50mm x 57.50mm) |
