The TC2-40K and TC4-40K Series Surge Protection Devices (SPD) are engineered to safeguard electrical equipment and installations from damaging transient overvoltages. Compliant with EN61643-11 Type 2 and Class 2 standards, these surge arresters provide reliable protection for both domestic and commercial lighting installations against voltage surges caused by lightning strikes and switching operations.
The TC2-40K and TC4-40K Series represent advanced surge protection technology designed for modern electrical installations. These devices are specifically engineered to protect sensitive electrical equipment from the damaging effects of transient overvoltages that can occur during lightning strikes or switching operations in the electrical network.
Manufactured to meet stringent EN61643-11 standards for Type 2 and Class 2 surge protection devices, these units offer comprehensive protection for both residential and commercial applications. The compact modular design allows for straightforward installation on standard 35mm DIN rails, making them ideal for integration into distribution boards and consumer units.
With a nominal discharge current capacity of 20kA and maximum discharge current of 40kA (8/20μs waveform), these SPDs provide robust protection against high-energy surge events. The ultra-fast response time of less than 25 nanoseconds ensures that connected equipment is protected before damaging voltage levels can be reached.
The built-in visual indication system features green and red LEDs to clearly display the operational status and any fault conditions, enabling quick assessment and maintenance. The rugged thermoplastic enclosure meets UL94-V0 flammability standards, ensuring safe operation even in demanding environments.
Electrical Characteristics:
The TC2-40K and TC4-40K Series SPDs are designed for continuous operation at AC voltages up to 320V, making them suitable for standard single-phase and three-phase electrical systems. The nominal discharge current rating of 20kA (8/20μs) represents the device's ability to handle repetitive surge events, while the maximum discharge current of 40kA (8/20μs) indicates the peak surge energy the device can withstand.
Protection Performance:
The voltage protection level (VPL) is a critical parameter that defines the maximum voltage that will appear across the SPD terminals during a surge event. This series offers excellent protection with a VPL of less than 1.5kV under standard conditions and less than 1.3kV at 5kA discharge current, ensuring that downstream equipment is exposed to minimal residual voltage.
Response and Coordination:
With a response time of less than 25 nanoseconds, these SPDs react virtually instantaneously to surge events, providing protection before sensitive electronic equipment can be damaged. The devices are designed to coordinate with upstream protection devices and can be protected by backup fuses up to 125A rating.
Environmental and Mechanical:
The wide operating temperature range of -40°C to +80°C ensures reliable performance in diverse climatic conditions. The thermoplastic enclosure material is rated to UL94-V0 standard, providing excellent fire resistance and mechanical durability. The standard 35mm DIN rail mounting system facilitates quick installation and replacement.
| Parameter | Specification |
|---|---|
| Model Series | TC2-40K / TC4-40K |
| SPD Classification (EN61643-11) | Type 2, Class 2 |
| Maximum Continuous Operating Voltage (AC) | 320V |
| Nominal Discharge Current (In) 8/20μs | 20kA |
| Maximum Discharge Current (Imax) 8/20μs | 40kA |
| Voltage Protection Level (Up) | <1.5kV |
| Voltage Protection Level at 5kA | <1.3kV |
| Maximum Backup Fuse Rating | 125A |
| Response Time | <25ns |
| Operating Temperature Range | -40°C to +80°C |
| Operating State Indication | Green LED |
| Fault Indication | Red LED |
| Mounting Type | 35mm DIN Rail |
| Enclosure Material | Thermoplastic UL94-V0 |
| Protection Type | Transient overvoltage protection |
| Application | Domestic & Commercial installations |
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