Adaptable DX³ 4-pole differential block designed to provide protection to people against direct and indirect contact and electric shock risks. It also prevents fires caused by persistent earth fault currents in electrical installations.
Technical features
- Nominal voltage: 250...440 V
- Nominal current: 40 A
- Nominal fault current: 0.3 A (non-adjustable)
- Maximum delay time: 0 ms
- Number of poles: 4
- Leakage current type: F
- Frequency: 50 Hz
- Nominal insulation voltage Ui: 500 V
- Maximum impulse voltage rating Uimp: 4 kV
- Connection capacity for rigid cable: 1.5...35 mm²
- Connection capacity for multiple conductors: 1.5...25 mm²
- Protection against nuisance tripping: Yes
- Padlock locking system: Yes
- Protection rating (IP): IP20
- Pollution degree: 2
- Ambient temperature during operation: -25...70 °C
This device guarantees an immediate response to insulation faults, ensuring the safety of people and the integrity of the installation. Its design with a padlock locking system facilitates maintenance and safety during service operations.