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2P 275V T2 20KA-40KA Lightning Surge Protection Device SPD
Technical Specifications
• System Voltage: 230V/240V AC
• Maximum Continuous Operating Voltage: 275V AC
• Frequency: 50/60Hz
• Number of Poles: 2P
• Protection Mode: L-L, L-N
• Type Classification: Type 2 (T2)
• Nominal Discharge Current (In): 20kA (8/20μs)
• Maximum Discharge Current (Imax): 40kA(8/20μs)
• Voltage Protection Level (Up): ≤1.8kV
• Response Time: < 25ns
• Operating Temperature: -40°C to +85°C
• Status Indication: Visual indicator
• Connection Method: DIN rail mounting
• Terminal Capacity: 25mm²
• Housing Material: Flame-retardant thermoplastic
• Protection Degree: IP20
• Short Circuit Withstand: 25kA
Performance Characteristics
The device utilizes metal oxide varistor technology with balanced protection characteristics. Its fast response capability ensures effective clamping of transient overvoltages, while the thermal protection mechanism provides fail-safe operation. The compact design allows for space-efficient installation in distribution boards.
Application Scope
- Main distribution boards in commercial buildings
- Industrial power distribution systems
- Manufacturing equipment control panels
- HVAC systems and motor control units
- Telecommunication power supplies
- Renewable energy systems
- Power distribution applications
Installation Requirements
Installation should be performed by qualified electrical personnel according to IEC standards. The device must be installed in parallel with the power supply system using appropriate cross-section cables. Proper grounding connections are essential for optimal performance. Regular inspection of the status indicator is recommended.
Standards Compliance
• IEC 61643-11: Surge protective devices
• EN 61643-11: European standard
• GB 18802.11: Chinese national standard
• CE certification
• RoHS compliance
Performance Features
1. Balanced two-pole protection
2. High energy absorption capacity
3. Fast response time
4. Thermal overload protection
5. Visual status indication
6. Maintenance-free operation
7. Long service life
Environmental Specifications
• Storage Temperature: -40°C to +85°C
• Operating Humidity: 5% to 95% RH
• Altitude: ≤2000m
• Pollution Degree: 2
• Overvoltage Category: III
