Legrand miniature circuit breaker DX3 according to EN 60898-1,0641-11, EN 60947-2, 1-pole with switching neutral conductor, B characteristic, rated current In 40 A, rated switching capacity Icn 6 kA according to EN 60898-1, rated voltage Un 230 VAC, rated frequency 50/60 Hz, energy limitation class 3, fastening on top hat rail EN 60715 by means of two snap-in quick fastenings, clear information on the front of each device, clear switch position indicator red/green on the switch lever, with labeling window, with protection against misplacement for safe insertion of the conductor into the elevator terminal, attachment of auxiliary devices possible. Circuit breakers with B characteristics are primarily intended for line protection in light and socket circuits.
| Property | Value |
| Triggering characteristic: | B |
| Rated current: | 40 A |
| Rated voltage: | 230 V |
| Type of voltage: | AC |
| Frequency: | 50 to 60 Hz |
| Width in pitch units: | 1 |
| Number of poles (total): | 2 |
| Energy limitation class: | 3 |
| Additional equipment possible: | yes |
| Installation depth: | 44 mm |
| Protection class (IP): | IP20 |
| Rated switching capacity Icn according to EN 60898 at 230 V: | 6 kA |
| Rated switching capacity Icu according to IEC 60947-2 at 230 V: | 10 kA |
| Degree of pollution: | 2 |
| Switching neutral conductor: | yes |
| Number of protected poles: | 1 |
| Rated insulation voltage Ui: | 250 V |
| Rated impulse withstand voltage Uimp: | 4 kV |
| Ambient temperature during operation: | -25 to 70 °C |
| Connectable conductor cross-section, stranded: | 0.75 to 10 mm² |
| Connectable conductor cross-section, single-wire: | 0.75 to 16 mm² |
