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The DUT250VG-300/G is a Compact and Heavy Duty Type 1 AC Surge Protector Device (SPD) designed to be connected at the entrance of the electrical installation, on a 3-Phase 230/400V AC network.
This SPD provides an efficient protection against direct and indirect effects and is particularly useful in a high lightning density area where the risk of heavy surge current or even direct strike is high (e.g.: buildings equipped with lightning rods or metallic poles, as radio base stations).
The DUT250VG-300/G is a 3-Phase+Neutral SPD and provides a common (L/G) and differential (L/N) mode protection. It complies to the Connection Type 2 configuration following IEC 62022-10-124.
This SPD is designed to withstand 25 kA lightning surge current (10/350 μs impulse) by pole. It is based on specific heavy duty GDTs and high energy MOV blocks : this technology allows the best behaviour possible on AC network (no follow current and no leakage current) and a very low residual voltage.
This SPD is built in a compact enclosure for DIN rail mounting.
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| Model | DUT250VG-300/G | DUT250VG-300/TNS |
| SPD type following IEC test | 1+2+3 | 1+2+3 |
| Network | 230/400 V 3-phase+N | 230/400 V 3-phase+N |
| AC system | TT-TNS | TNS |
| Nominal line voltage (Un) | 230/400 Vac | 230/400 Vac |
| Max. PV operating voltage L-N (Uc) | 255 Vac | 255 Vac |
| Temporary Over Voltage (TOV) Charasteristics-5 sec.without disconnection |
335 Vac withstand | 335 Vac withstand |
| Temporary Over Voltage (TOV) Charasteristics - 120 mn without disconnection or with safety disconnection |
440 Vac withstand | 440 Vac withstand |
| Temporary Over Voltage N/PE (TOV HT) without disconnection or with safety disconnection |
1200 V/300A/200 ms withstand | - |
| Residual Current (Ipe) Leakage current to Ground |
none | none |
| Operating current (Ic) Continious current at Uc |
- | none |
| Follow current (If) | None | none |
| Nominal discharge current (In) 15 x 8/20 μs impulses |
40 kA | 40 kA |
| Max. discharge current (Imax) max. withstand @ 8/20 μs by pole |
100 kA | 100 kA |
| Impulse current by pole (limp) max. withstand 10/350µs by pole |
25 kA | 25 kA |
| Total lightning current (Itotal) max. total withstand @ 10/350μs |
50 kA | 50 kA |
| Withstand on Combinaison waveform IEC 61643-11 Class III test: 1.2/50μs - 8/20μs (Uoc) |
6 kV | 6 kV |
| Withstand on overvoltages IEEE C62.41.1 | 20 kV | 20 kV |
| Admissible short-circuit current (lsccr) | 50000 A | 50000 A |
| Connection mode(s) | L/N and N/PE | L/N and L/PE |
| Protection mode(s) | Common/Differential mode | Common/Differential mode |
| Residual voltage (Up-in) @ In (8/20 μs) |
1.1 kV | 1.1 kV |
| Protection level L/N (Up L/N) @ In (8/20μs) |
1.5 kV | 1.5 kV |
| Protection level N/PE (Up N/PE) @ In (8/20μs) |
1.5 kV | 1.5 kV |
| Specific energy by pole max. withstand 10/350 μs |
156 kJ/ohm | 156 kJ/ohm |
| Mechanical Characteristics | ||
| Technology | VG | |
| SPD configuration | 3- phase+Neutral | |
| Connection to Network | By screw terminals: 6-35mm²/ by bus | |
| Format | Multipolar modular box | |
| Mounting ) | Symmetrical rail 35 mm (EN60715) | |
| Housing material | Thermoplastic UL94-V0 | |
| Operating temperature | -40 / +85 °C | |
| Protection rating | IP20 | |
| Failsafe behavior | Disconnection | |
| Disconnection indicator | 3 mechanical indicator | |
| Remote signaling of disconnection | output on changeover contact | |
| Dimensions | See diagram | |
| Disconnectors | ||
| Thermal disconnector | Internal | |
| Installation ground fault breaker | Type 'S' or delayed | |
| Fuses | Fuses type gG - 315 A | |
| Standards | ||
| Standards compliance | IEC 61643-11 / EN 61643-11 / UL1449 4ed. | |
| Certification | EAC | |
| Part Number | 3414 | 3597 |
