| TYPE | DESCRIPTION |
| Maida Development Company | |
| TPHE | |
| Bulk | |
| Active | |
| Type | Type 1 |
| Form | Module Only |
| Number of Poles | 1 |
| Voltage - Continuous Operating (Max) (MCOV) | 420VAC |
| 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) | 1.5 kV |
| Operating Temperature | -40°C ~ 85°C |
| Features | Thermally Protected |
| Mounting Type | DIN Rail |
| Approval Agency | UL |
| Base Product Number | FSSZOV421 |
