| In Accordance with | | IEC - 61643 -1 | | | | |
| Max. continuous operating voltage (AC/DC) | Uc | 150/200V | 275/350V | 320/420V | 385/500V | 440/580V |
| Nominal discharge current (8/20) | In | 25kA | | | | |
| Max. discharge current (8/20) | Imax | 100kA | | | | |
| Impulse current 10/350) | Iimp | 25kA | | | | |
| Specific energy | | 156kk/W | | | | |
| Charge | | 12.5As | | | | |
| Protection level | Up | <0.7kV | <1.3kV | <1.3kV | <1.7kV | <2.0kV |
| Residual voltage at limp | Ures | <0.7kV | <1.2kV | <1.2kV | <1.5kV | <1.8kV |
| Follow current | If | NO | | NO | | |
| Response time | A | <25ns | | <25ns | | |
| Residual current at Uc | IPE | <2.5mA | | <2.5mA | | |
| Thermal protection | | YES | | YES | | |
| Terminal screw torque | | Max. 4.5Nm | | Max. 4.5Nm | | |
| Back-up fuse (if mains > 250A) | | 250A gL | | 250A gL | | |
| Short-circuit withstand current | | 25kA / 50Hz | | 25kA / 50Hz | | |
| Temperature range | | - 40˚C....+80˚C | | - 40 0 C....+80 0 C | | |
| Terminal cross section | | 35mm² (solid) / 25mm² (stranded) | 35mm2 (solid) / 25mm2 (stranded) | 35mm2 (solid) / 25mm2 (stranded) | 35mm2 (solid) / 25mm2 (stranded) | 35mm2 (solid) / 25mm2 (stranded) |
| Degree of protection | | IN20 | | | | |
| Housing material | | Thermoplastic; extinguishing degree UL 94 V-O | Thermoplastic; extinguishing degree UL 94 V-O | Thermoplastic; extinguishing degree UL 94 V-O | Thermoplastic; extinguishing degree UL 94 V-O | |
| Dimensions DIN 43880 | | 2TE | 2TE | 2TE | 2TE | |
| Weight per unit | | 200g | 252g | 252g | 268g | 284g |
| MER 25 | | | | | | |
| Remote contacts | | YES | YES | YES | YES | |
| Contact ratings | | AC: 250V/0.5A ; 125V/3A | AC: 250V/0.5A ; 125V/3A | AC: 250V/0.5A ; 125V/3A | AC: 250V/0.5A ; 125V/3A | |
| Terminal cross section | | max. 1.5mm² | max. 1.5mm2 | max. 1.5mm2 | max. 1.5mm2 | |
| Remote terminal torque | | 0.25Nm | 0.25Nm | 0.25Nm | 0.25Nm | |
| Weight per unit | | 205g | 257g | 257g | 273g | |
| Packaging dimensions (single unit) | | | 109 x 76.5 x 41.5mm | 109 x 76.5 x 41.5mm | | 289g |
