| PartNumber | 2817987 | 2817958 | 2817974 |
| Description | Surge Suppressors F-MS 12 | Surge Suppressors PT 2+1-S-48DC | Surge Suppressors F-MS 12/FM |
| Manufacturer | Phoenix Contact | Phoenix Contact | Phoenix Contact |
| Product Category | Surge Suppressors | Surge Suppressors | Surge Suppression ICs |
| RoHS | Y | Y | - |
| Series | 281 | - | |
| Mounting Style | DIN Rail Mount | DIN Rail Mount | - |
| Product | Industrial Protection Devices | Industrial Protection Devices | Industrial Protection Devices |
| Type | Surge Arrester | Surge Arrester | Surge Arrester |
| Voltage Rating | 260 V | 48 VDC | 240 VAC |
| Current Rating | 100 A | 26 A | - |
| Termination Style | Screw | Screw | Screw |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 80 C | + 80 C | - |
| Packaging | Bulk | Bulk | Bulk |
| Color | Black | - | - |
| Features | Type 2, Base and Connector, N-PE Spark Gap | Type 3 | - |
| Height | 89.8 mm | 90 mm | 97 mm |
| Length | 65.5 mm | - | 58 mm |
| Width | 17.6 mm | 17.7 mm | 17.6 mm |
| Brand | Phoenix Contact | Phoenix Contact | - |
| Flammability Rating | UL 94 V-0 | - | UL 94 V-0 |
| Product Type | Surge Suppressors | Surge Suppressors | - |
| Factory Pack Quantity | 1 | 1 | - |
| Subcategory | Surge Suppressors | Surge Suppressors | - |
| Part # Aliases | F-MS_12 FMS12 | PT_2+1-S-48DC/FM PT2+1S48DCFM | - |
| Unit Weight | 3.742567 oz | 2.238662 oz | 4.064619 oz |
| For Use With | - | Terminal Equipment | - |
| Tradename | - | MAINS PLUGTRAB | - |
| Part Aliases | - | - | F-MS_12/FM FMS12FM |
| Number of Poles | - | - | 2 |
| Mounting | - | - | DIN Rail |
| Operating Temperature Range | - | - | - 40 C to + 80 C |
| Package Case | - | - | Module, Terminal Block |
| Mounting Type | - | - | DIN Rail |
| Tolerance | - | - | ±20% |
| Voltage DC Spark Over Nom | - | - | 500V |
| Impulse Discharge Current 8 20μs | - | - | 20000A (20kA) |
| Fail Short | - | - | No |