| PartNumber | V20E320PL1B7 | V20E320P | V20E320PL1A7 |
| Description | Varistors 320V 20mm Epoxy UltraMOV | Varistors 320V 20mm Epoxy UltraMOV | Varistors 320V 20mm Epoxy UltraMOV |
| Manufacturer | Littelfuse | Littelfuse | Littelfuse |
| Product Category | Varistors | Varistors | Varistors |
| RoHS | Y | Y | Y |
| Series | UltraMOV | UltraMOV | UltraMOV |
| Voltage Rating DC | 510 VDC | 420 VDC | 510 VDC |
| Clamping Voltage | 840 V | 840 V | 840 V |
| Packaging | Bulk | Bulk | Ammo Pack |
| Brand | Littelfuse | Littelfuse | Littelfuse |
| Product Type | Varistors | Varistors | Varistors |
| Factory Pack Quantity | 400 | 400 | 400 |
| Subcategory | Varistors | Varistors | Varistors |
| Tradename | UltraMOV | UltraMOV | UltraMOV |
| Product | - | MOV | - |
| Mounting Style | - | PCB Mount | - |
| Termination Style | - | Radial | - |
| Voltage Rating AC | - | 320 VAC | - |
| Varistor Voltage | - | 459 V to 561 V | - |
| Diameter | - | 20 mm | - |
| Peak Surge Current | - | 10 kA | - |
| Surge Energy Rating | - | 273 J | - |
| Capacitance | - | 750 pF | - |
| Minimum Operating Temperature | - | - 55 C | - |
| Maximum Operating Temperature | - | + 85 C | - |
| Current Rating | - | 100 A | - |