The TC4-70K Series Surge Arrester Device provides comprehensive protection for electrical equipment and installations against dangerous transient voltages caused by switching operations or lightning strikes. Engineered to meet EN61643-11 standards, this surge protection device combines Type 1 and Type 2 classification, making it ideal for both domestic and commercial lighting installations where reliable overvoltage protection is essential.
The TC4-70K Series Surge Arrester Device represents a professional-grade solution for protecting sensitive electrical equipment from voltage surges and transient overvoltages. This device combines the protective capabilities of both Type 1 (Class 1) and Type 2 (Class 2) surge protection devices, offering comprehensive defense against both direct and indirect lightning strikes as well as switching surges.
Designed for versatility, the TC4-70K series is recommended for use in a wide range of applications including residential buildings, commercial facilities, and industrial installations. The device features robust construction with a flame-retardant thermoplastic enclosure meeting UL94-V0 standards, ensuring long-term reliability and safety.
With visual indication of operating status and fault conditions, maintenance and monitoring are simplified. The compact design allows for easy installation on standard 35mm DIN rails, making it an ideal choice for integration into distribution boards and electrical panels.
Protection Classification: The TC4-70K series meets EN61643-11 standards for both Type 1 and Type 2 (Class 1 and Class 2) surge protection devices, providing comprehensive protection against high-energy surges from direct lightning strikes and lower-energy transient overvoltages.
Discharge Capacity: Available in two configurations with nominal discharge currents of 20kA and 50kA (8/20μs waveform), and maximum discharge currents of 50kA and 100kA respectively, ensuring adequate protection for various installation requirements.
Response Characteristics: Features ultra-fast response times of less than 25ns to 100ns, ensuring immediate protection activation when transient voltages are detected. The voltage protection level is maintained below 1.5kV for both configurations.
Operating Parameters: Designed for continuous operation with maximum continuous operating AC voltages of 255V AC and 320V AC depending on configuration. The device operates reliably across a wide temperature range from -40°C to +80°C, suitable for diverse environmental conditions.
Installation and Safety: Equipped with visual status indicators (Green/Red or Blue LED) for easy monitoring of device condition. The thermoplastic enclosure is rated UL94-V0 for flame retardancy. Maximum backup fuse rating of 125A gG ensures proper coordination with upstream protection devices.
| Parameter | L-N Configuration | N-PE Configuration |
|---|---|---|
| SPD Classification (EN61643-11) | Type 1 + Type 2 | Type 1 + Type 2 |
| SPD Class (EN61643-11) | Class 1 + Class 2 | Class 1 + Class 2 |
| Max. Continuous Operating AC Voltage | 320V AC | 255V AC |
| Nominal Discharge Current (8/20μs) | 20kA | 50kA |
| Max. Discharge Current (8/20μs) | 50kA | 100kA |
| Voltage Protection Level | <1.5kV | <1.5kV |
| Charge (Impulse Current) | 6.25As | 25As |
| Max. Backup Fuse | 125A gG | - |
| Response Time | <25ns | <100ns |
| Operating Temperature Range | -40°C to +80°C | -40°C to +80°C |
| Operating State/Fault Indication | Green/Red LED | Blue LED |
| Mounting | 35mm DIN Rail | 35mm DIN Rail |
| Enclosure Material | Thermoplastic UL94-V0 | Thermoplastic UL94-V0 |
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