Class C and D SPD with integrated fuse
- Prosurge
- China
- Within 25 days
- 10kpcs per month
Type 3 AC surge arrester with internal fuse design is especially for low voltage system protection against surges at the boundaries from lightning protection zone 1-2 and higher.
Comply with IEC 61643-11
Inbuilt fuse in series with MOV design for more reliable over-current protection
Failure indicators on both MOV and internal Fuse
With window indication to indicate the internal thermal disconnector
With optional remote alarm contact
Model | DT25/150-4VF-S | DT25/275-4VF-S | DT25/320-4VF-S | DT25/385-4VF-S | |
Compliance | EN/IEC 61643-11, UL 1449 4th | ||||
Category IEC/EN/UL | Class II / T2 / Type 1ca | ||||
Max. Continuous Operating Voltage (AC/DC) | Uc | 150V / 200V | 275V / 350V | 320V / 420V | 385V / 505V |
Technology | High energy MOV technology TPAE technology (patented) Integrated fuse | ||||
Ports/Protection Mode | 1 / L-PE , N-PE | ||||
Nominal Discharge Current (8/20μs) | In | 15kA | |||
Max. Discharge Current (8/20μs) | Imax | 25kA | |||
Voltage Protection Rating 6kV/3kA UL 1449 | VPR | ≤0.7kV | ≤1.0kV | ≤1.2kV | ≤1.5kV |
Voltage Protection Level @In IEC61643 | Up | ≤0.8kV | ≤1.4kV | ≤1.5kV | ≤1.8kV |
Temporary Overvoltage TOV —Withstand Mode | Utov | 174V/5s | 335V/5s | 335V/5s | 403V/5s |
Residual Current | IPE | <0.1mA | |||
Response Time | tA | ≤25ns | |||
Backup Fuse (only required if not already provided in mains) | If short circuit rating≤3kA, not required; If short circuit rating>3kA, 63A gL/gG | ||||
Environment | Temperature Range: - 40ºC ~ +85ºC; Humidity: £95%; Altitude: £2000m | ||||
Cross-Section of Connection Wire | Single-strand 35mm2; multi-strand 25mm2 | ||||
Mounting | 35mm DIN-rail in accordance with EN 50022/DIN46277-3 | ||||
Enclosure Material | thermoplastic; extinguishing degree UL94 V-0 | ||||
Degree of Protection | IP20 | ||||
Installation Width | 4 modules, DIN 43880 | ||||
Failure Indication /Status | Internal MOV (green – normal; red – failure); Fuse (LED on-normal, led off-failure) | ||||
Remote Alarm Contact | Yes | ||||
Approvals, certification | CE | ||||
Additional Data for Remote Alarm Contacts | |||||
Remote Alarm Contact Type | Isolated Form C | ||||
Switching Capability Un/In | AC: 250V/0.5A; DC: 250V/0.1A; 125V/0.2A; 75V/0.5A | ||||
Max. Size of Connecting Wire | Max. 1.5mm2 (or # 16AWG) | ||||
Prewired Multi-pole SPD
Part No. |
Pole |
Power System | Nominal Voltage (phase voltage) Un | Max. Operating Voltage Uc | Max. Discharge Current (8/20μs) Imax | Voltage Protection Level Up |
Diagram |
DS25/150-2VF-S | 2 | Single phase 2W+G | 120~127Vac | 150Vac | 25kA | L/N-G: 0.8kV | 4 |
DS25/275-2VF-S | 2 | Single phase 2W+G | 220~230Vac | 275Vac | 25kA | L/N-G: 1.4kV | 4 |
DS25/320-2VF-S | 2 | Single phase 2W+G | 240Vac | 320Vac | 25kA | L/N-G: 1.5kV | 4 |
DS25/385-2VF-S | 2 | Single phase 2W+G | 240~277Vac | 385Vac | 25kA | L/N-G:1.8kV | 4 |
DS25/150-(VF+T)-S | 2 | Single phase 2W+G | 120~127Vac | 150Vac | 25kA | L-N: 0.8kV, N-PE: 1.5kV | 3 |
DS25/275-(VF+T)-S | 2 | Single phase 2W+G | 220~230Vac | 275Vac | 25kA | L-N: 1.4kV, N-PE: 1.5kV | 3 |
DS25/320-(VF+T)-S | 2 | Single phase 2W+G | 240Vac | 320Vac | 25kA | L-N: 1.5kV, N-PE: 1.5kV | 3 |
DS25/385-(VF+T)-S | 2 | Single phase 2W+G | 240~277Vac | 385Vac | 25kA | L-N: 1.8kV, N-PE: 1.5kV | 3 |
DT25/150-3VF-S | 3 | Three phase 3W+G | 120~127Vac | 150Vac | 25kA | L-G: 0.8kV | 2 |
DT25/275-3VF-S | 3 | Three phase 3W+G | 220~230Vac | 275Vac | 25kA | L-G: 1.4kV | 2 |
DT25/320-3VF-S | 3 | Three phase 3W+G | 240Vac | 320Vac | 25kA | L-G: 1.5kV | 2 |
DT25/385-3VF-S | 3 | Three phase 3W+G | 240~277Vac | 385Vac | 25kA | L-G:1.8kV | 2 |
DT25/150-(3VF+T)-S | 4 | Three phase 4W+G | 120~127Vac | 150Vac | 25kA | L-N: 0.8kV, N-PE: 1.5kV | 1 |
DT25/275-(3VF+T)-S | 4 | Three phase 4W+G | 220~230Vac | 275Vac | 25kA | L-N: 1.4kV, N-PE: 1.5kV | 1 |
DT25/320-(3VF+T)-S | 4 | Three phase 4W+G | 240Vac | 320Vac | 25kA | L-N: 1.5kV, N-PE: 1.5kV | 1 |
DT25/385-(3VF+T)-S | 4 | Three phase 4W+G | 240~277Vac | 385Vac | 25kA | L-N: 1.8kV, N-PE: 1.5kV | 1 |
