Iimp 25kA Single phase VT Surge Arrester
- Prosurge
- China
- Within 25 days
- 10kpcs per month
Type1+2+3 surge arrester for low-voltage power supply system protection against surges at the boundaries from lightning protection zone 0B -3 and higher.
Surge protective device that Comply with IEC61643-11
VT technology, the best technology for power protection
Very low clamping level and high surge current capability Iimp 25kA 10/350 (High Iimp, low Up)
High TOV withstand, increased reliability for areas with unstable power network
No follow current + No leakage current + Intelligent distinguish power frequency current and surge current to guarantee long service life
Model | B25VT/150-S | B25VT/175-S | B25VT/275-S | B25VT/320-S | B25VT/385-S | |
Compliance | EN/IEC 61643-11 | |||||
Category IEC/EN | Class I+II+III /T1+2+3 | |||||
Max. Continuous Operating Voltage (AC) | Uc | 150V | 175V | 275V | 320V | 385V |
Technology | VT technology Thermal disconnector | |||||
Ports/Protection Mode | 1 / L-PE or L-N or N-PE | |||||
Lightning Impulse Current (10/350μs) | Iimp | 25kA | ||||
Nominal Discharge Current (8/20μs) | In | 25kA | ||||
Max. Discharge Current (8/20μs) | Imax | 120kA | ||||
Voltage Protection Level | Up | £0.8kV | £0.8kV | £1.0kV | £1.2kV | £1.5kV |
Temporary Overvoltage TOV —Withstand Mode | Utov | 228V/120min | 228V/120min | 442V/120min | 442V/120min | 580V/120min |
Residual Current | IPE | No | ||||
Follow Current | If | No | ||||
Short-Circuit Current Rating per IEC 61643 | Isc | 25kA | ||||
Response Time | tA | ≤100ns | ||||
Backup Fuse (only required if not already provided in mains) | 315A 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 | 2 modules, DIN 43880 | |||||
Failure Indication /Status | RED- 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 | Combination | Power System | Ma x . Operating Voltage Uc | Lightning Impulse Current (10/350μs) Iimp | Voltage Protection Level Up | Diagram |
B25VT/150-S/2P | 2 | 2 x B25VT/250-S | Single phase 2W+G | 150Vac | 25kA | L/N-G: 0.8kV | 4 |
B25VT/175-S/2P | 2 | 2 x B25VT175-S | Single phase 2W+G | 175Vac | 25kA | L/N-G: 0.8kV | 4 |
B25VT/275-S/2P | 2 | 2 x B25VT/275-S | Single phase 2W+G | 275Vac | 25kA | L/N-G: 1.0kV | 4 |
B25VT/320-S/2P | 2 | 2 x B25VT/320-S | Single phase 2W+G | 320Vac | 25kA | L/N-G: 1.2kV | 4 |
B25VT/385-S//2P | 2 | 2 x B25VT/385-S | Single phase 2W+G | 385Vac | 25kA | L/N-G: 1.5kV | 4 |
B25VT/150-S/PN50 | 2 | B25VT/150-S + G50/255NPE | Single phase 2W+G | 150Vac | 25kA / 50kA(NPE) | L-N: 0.8kV, N-PE: 1.5kV | 3 |
B25VT/175-S/PN50 | 2 | B25VT/175-S + G50/255NPE | Single phase 2W+G | 175Vac | 25kA / 50kA(NPE) | L-N: 0.8kV, N-PE: 1.5kV | 3 |
B25VT/275-S/PN50 | 2 | B25V/T275-S + G50/255NPE | Single phase 2W+G | 275Vac | 25kA / 50kA(NPE) | L-N: 1.0kV, N-PE: 1.5kV | 3 |
B25VT/320-S/PN50 | 2 | B25VT/320-S + G50/255NPE | Single phase 2W+G | 320Vac | 25kA / 50kA(NPE) | L-N: 1.2kV, N-PE: 1.5kV | 3 |
