DGT type Overvolage Arresters
Famille :
Protección contra sobretensiones
Catégorie :
Red de baja tensión
DGT type modular overvoltage arresters protect electrical systems against overvoltage which may occur in the power supply circuit during a storm (lightning) or during coupling to the network (industrial interference). Depending on the distribution set-up, it is necessary to provide for one element per phase to be protected and, if necessary, an additional element for neutral.
Protection is provided by a zinc oxide varistor which is able to channel currents of up to 40 kA to earth without incurring damage. Stepped protection of the installation can be achieved using a DGT type arrester combined with a high-energy DGA arrester positioned upcircuit, or a lower intensity DGX type arrester positioned downcircuit.
The DGT overvoltage arrester benefits from a new design of removable cartridge allowing the varistor to be replaced without affecting the overvoltage arrester’s wiring.
| Intitulé | Réf. | Dimensions (m) | Poids (kg) |
|---|
| DGT 230 | 8410 | 0,09*0,065 | 0,108 |
| DGT 400 | 8416 | 0,09*0,065 | 0,118 |
| DGT 120S | 8435 | 0,09*0,065 | 0,110 |
| DGT 230S | 8434 | 0,09*0,065 | 0,116 |
| DGT 400S | 8433 | 0,09*0,065 | 0,122 |
| Plugin Modul DGT 120S | 8472 | 0,05*0,045 | 0,040 |
| Plugin Modul DGT 230S | 8471 | 0,05*0,045 | 0,046 |
| Plugin Modul DGT 400S | 8470 | 0,05*0,045 | |
| DGT 120 | 8411 | 0,09*0,065 | 0,104 |