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| TYPE | DESCRIPTION |
| Littelfuse Inc. | |
| SPD2 4+0 | |
| Bulk | |
| Active | |
| Type | Type 1, Type 2 |
| Form | Base + Module |
| Number of Poles | 4 |
| Voltage - Continuous Operating (Max) (MCOV) | 550VAC |
| Current - Discharge (Nom) (8/20µS) | 20 kA |
| Current - Discharge (Max) (8/20µS) | 50 kA |
| Current - Short Circuit Rating (SCRR) | 200 kA |
| Voltage - Protection Rating (VPR) | 2 kV |
| Voltage - Protection Level (VP) (2416) | 2.5 kV |
| Operating Temperature | -40°C ~ 80°C |
| Features | Remote Signaling Contacts, Thermally Protected |
| Mounting Type | DIN Rail |
| Approval Agency | CE, cURus, UL, VDE |