TEKSHIELD Class I SPD
Direct Lightning Current Protection | Up to 100kA Discharge Capacity | 10/350 μs Waveform | Main Distribution Board Installation
Direct Lightning Current Protection
TEKSHIELD Class I SPD (Type 1) is designed to handle direct lightning current surges with discharge capacities up to 100kA. Engineered as per IEC 61643-11 standards, these devices provide the first line of defense against lightning strikes.
Specifically designed for installation at main distribution boards and service entrance points where the risk of direct lightning strikes is highest. The robust 10/350 μs waveform protection ensures your electrical systems survive even the most severe lightning events.
Ideal for lightning-prone zones, industrial facilities, critical infrastructure, and any installation requiring the highest level of surge protection.
Maximum Discharge
Industry-leading surge handling capacity
Lightning Waveform
Tested for actual lightning characteristics
Class I Protection
Primary level protection for direct lightning strikes and severe electrical surges
Understanding Class I SPD (Type 1)
The ultimate protection against direct lightning strikes and severe electrical surges
When Class I SPD is Essential:
Direct Lightning Exposure
Buildings with external lightning protection systems or in high-risk lightning zones require Class I protection.
Main Distribution Boards
Service entrance panels and main electrical distribution points where lightning current must be safely diverted.
Critical Infrastructure
Industrial facilities, data centers, and mission-critical installations requiring maximum protection.
Lightning-Prone Areas
Regions with high lightning activity (>25 flashes/km²/year) requiring enhanced protection measures.
10/350 μs vs 8/20 μs Waveform
Class I (10/350 μs) - Lightning Current
- • Higher energy content - Simulates actual lightning strikes
- • Longer duration - Handles lightning's thermal effects
- • Direct strikes - Protection against full lightning current
- • Main panels - Service entrance installation
Class II (8/20 μs) - Switching Surges
- • Lower energy - Induced/switching surges
- • Faster response - Quick peak, fast decay
- • Indirect effects - Secondary surge protection
- • Sub-panels - Distribution level installation
Important: Class I SPDs provide superior protection against direct lightning with 25x more energy handling capacity than Class II devices.
Technical Specifications
Comprehensive technical parameters for TEKSHIELD Class I SPD performance and installation
⚡Electrical Performance
| SPD Class | Class I (Type 1) |
| Test Waveform | 10/350 μs |
| Discharge Capacity (Iimp) | Up to 100kA |
| Nominal Voltage (Un) | 230/400V AC |
| Maximum Continuous Voltage (Uc) | 275V / 440V |
| Voltage Protection Level (Up) | ≤1.5kV |
| Response Time | <25 nanoseconds |
| Frequency Range | 50/60 Hz |
🔧Installation & Environment
| Installation Location | Main distribution board |
| Mounting | DIN rail mountable |
| Housing Material | Flame retardant plastic |
| Operating Temperature | -40°C to +85°C |
| IP Rating | IP20 |
| Status Indication | Visual LED (Green/Red) |
| Remote Alarm | Optional contact |
| Lifespan | 10+ Years |
Available Configurations
Multiple pole configurations to match your electrical system requirements
Single Pole
L-N protection
100kA capacity
Two Pole
L-N + L-PE
100kA per pole
Three Pole
L1-L2-L3-N
3-phase systems
Four Pole
L1-L2-L3-N-PE
Complete protection
Advanced Features
Engineering excellence and innovative design for superior lightning protection performance
High Surge Handling
Industry-leading 100kA discharge capacity for maximum lightning current protection
Visual Status Indication
LED indicators show device status at a glance - Green for OK, Red for replacement needed
Remote Alarm Contact
Optional remote monitoring capability for integration with building management systems
Compact DIN Rail Design
Standard DIN rail mounting for easy installation in existing electrical panels
Replaceable Modules
User-replaceable SPD modules for easy maintenance without system downtime
Global Standards
Full compliance with IEC 61643-11 and local electrical safety standards
Critical Applications
Where TEKSHIELD Class I SPD provides essential protection against direct lightning strikes
Power Substations
High-voltage electrical distribution facilities requiring maximum lightning protection
Data Centers
Mission-critical facilities where downtime is not acceptable
Industrial Plants
Manufacturing facilities with expensive equipment and continuous operations
Hospitals
Healthcare facilities where electrical safety is paramount
Telecom Facilities
Communication infrastructure requiring uninterrupted service
Chemical Plants
Hazardous environments where electrical faults can have severe consequences
Installation Zones
Complete Surge Protection Strategy
Combine TEKSHIELD Class I SPD with complementary protection systems for comprehensive lightning safety
Lightning Protection Systems
Essential air terminals and down conductors to capture and safely route lightning strikes
Class II SPD (Type 2)
Secondary protection for sub-distribution panels and sensitive equipment areas
Professional Earthing
Quality earthing system essential for effective SPD operation and lightning discharge
⚡ Coordinated Protection Strategy
Class I SPDs work best as part of a coordinated protection system: Lightning arresters capture strikes, Class I SPDs handle direct lightning currents at main panels, Class II SPDs provide secondary protection at sub-panels, and quality earthing ensures safe current discharge. Contact our experts for complete system design.
Maximum Lightning Protection for Critical Systems
Get professional assessment and installation of TEKSHIELD Class I SPDs for comprehensive lightning protection