About the DS440 range
The DS440 Type 2 surge protectors are compact devices designed to protect 3-phase+N networks at the main switchboard. They provide a common or common/differential mode protection. This SPD is based on high energy varistor equipped with thermal disconnectors and failure indicator to comply with standards. The DS440 is DIN rail compatible and is built with a plug-in module and fixed base, which allows an easy and fast maintenance.
Specifications
| CITEL part number | 311922 |
| SPD type (IEC 61643) | 2 |
| Un — nominal line voltage | 230 Vac |
| Uc — max continuous operating voltage | 320 Vac |
| In — nominal discharge current | 20 kA |
| Imax — max discharge current | 40 kA |
| Up — voltage protection level | 1.5/1.5 kV (CM/DM @ In) |
| Configuration | 3-phase+Neutral |
| Mounting | Symmetrical rail 35 mm (EN 60715) |
| Standards | IEC 61643-11 / EN 61643-11 / UL1449 ed.5 |
| Replacement module | DSM440-320/G and DSM440-320/GPE |
Specifications as published by CITEL. Confirm against the datasheet for your application.
CITEL datasheet for DS440-320/G →
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