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SeriesDUT250VG
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ModelDUT250VG-300/G
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Brand / Made inCITEL / FRANCE
- Type 1+2+3, 3-phase surge protector
- Common and differential mode
- Very compact monobloc enclosure
- Iimp by pole/total : 25kA
- Internal disconnection, status indicator
- Optimized to TOV
- EN 61643-11, IEC 61643-11 and UL1449 ed.5 compliance
The DUT250VG is a compact and heavy duty Type 1+2+3 SPD, designed to be connected at the entrance of the electrical installation, on a 3-phase 230/400 V AC network. The Spark gap + Varistor technology allows a very low level of protection and an absence of following current. The DUT250VG is a 3-phase SPD and provides a common and differential mode protection. This SPD is built in a compact enclosure for DIN rail mounting.
Electrical Characteristics
- SPD type (following IEC tests): 1+2+3
- Network: 230/400 V 3-phase+N
- AC system: TT-TNS
- Nominal line voltage Un: 230/400 Vac
- Max. AC operating voltage Uc: 255 Vac
- Temporary Over Voltage (TOV) Charasteristics - 5 sec (Without disconnection) UT: 335 Vac withstand
- Temporary Over Voltage (TOV) Charasteristics - 120 mn (Without disconnection or with safety disconnection) UT: 440 Vac disconnection
- Temporary Over Voltage N/PE (TOV HT) (Without disconnection or with safety disconnection) UT: 1200 V/300A/200 ms withstand
- Residual CurrentLeakage current to Ground Ipe: None
- Follow current If: None
- Nominal discharge current (15 x 8/20 µs impulses) In: 40 kA
- Max. discharge current (max. withstand @ 8/20 µs by pole) Imax: 100 kA
- Impulse current by pole (max. withstand 10/350µs by pole) Iimp: 25 kA
- Total lightning current(max. total withstand @ 10/350µs) Itotal: 50 kA
- Withstand on Combinaison waveform IEC 61643-11 Class III test: 1.2/50µs - 8/20µs Uoc: 6 kV
- Withstand on overvoltages IEEE C62.41.1: 20 kV
- Admissible short-circuit current Isccr: 50000 A
- Connection mode(s): L/N and N/PE
- Protection mode(s): Common/Differential mode
- Residual voltage @ In (8/20 µs) Up-in: 1.1 kV
- Protection level L/N @ In (8/20µs) Up L/N: 1.5 kV
- Protection level N/PE @ In (8/20µs) Up N/PE: 1.5 kV
- Specific energy by pole max. withstand 10/350 µs W/R: 156 kJ/ohm
- Mechanical Characteristics
- Technology: VG
- SPD configuration: 3-phase + N
- Connection to Network: By screw terminals: 6-35mm² / by bus
- Format: Multipolar modular box
- Mounting: Symmetrical rail 35 mm (EN 60715)
- Housing material: Thermoplastic UL94 V-0
- Operating temperature: -40/+85°C
- Protection rating: IP20
- Failsafe mode: Disconnection from AC network
- Disconnection indicator: 3 mechanical indicator by pole
- 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 ed.4
- Certification: EAC
INSTALLATION
DUT250VG-300/G Type 1+2+3 AC surge protector - 3-phase+N are connected in parallel on the AC network and must be equipped with external fuses for short-circuit current protection
- The total length of parallel connection wires to AC network must be lower than 0.5 m in order not to increase the protection level (Up) provided by the SPD.
- Wiring is made by screw connections. On some models, a distribution bus can be used.
- The protection wire coming from the SPD must be connected to the bonding bar of the electrical panel. Paralleling the protection wire with phases conductors must be avoided.
- The cross sectional wire must be 6 mm² minimum for Type 2 SPD and 16 mm² for Type 1.
- Local earthing resistance must be in compliance with the electrical rules.
Further information can be found in IEC 61643-12 standard (selection and application principles for low voltage SPD).
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