Type 2 SPD
Class II indirect surge protection tested with 8/20μs waveform for sub-distribution boards and equipment protection
The Type 2 SPD (Class II SPD) is designed for indirect surge protection, tested with the 8/20μs waveform. It is suitable for sub-distribution boards and equipment protection, serving as the second stage of a multi-stage lightning protection scheme.
Product Overview
T2 Varistor SPDCompliant with T2 Classpower Supply Lightning Protection Standard,Installed Between power Supply System and device,Used to Suppress Indirect Lightning Strikes and Internal Grid Overvoltage.Uses High-quality Varistor Components,Features High Current Capacity and Low Residual Voltage Output,Fast Response,Effectively Reduces Device Damage Risk.
Products Support 2P/4P Multiple Wiring Modes,Built-in Failure Indicator Window,Standard 35mm DIN Rail installation,Compact Structure, Small Size, Suitable for Distribution Cabinet Inner Batch Deployment."S" Type Dry Contact Model Built-in Dry Contact,Can Access Monitoring System for Failure Reporting.
Core Capabilities
- T2 Lightning Protection, nominal discharge current 20kA, maximum 40kA.
- Voltage Protection Level as low as 1.5kV, Response Time ≤50ns.
- 2P/4P Multiple Specification, compatible 275V/385V Multiple Uc voltage.
- with "S" Model Support Dry Contact Remote Monitoring, Failure Reporting.
Product Features
T2 Lightning Protection
Compliant with T2 Classpower Supply Lightning Protection Standard,Discharges Indirect Lightning Strikes and Internal Grid Overvoltage, Effectively Reduces Device Damage Risk.
High Current Capacity
Nominal Discharge Current Reaches 20kA (Maximum 40kA), Can Withstand High Energy Impulse, Adapts to Harsh Surge Environments.
Low Residual Voltage Output
Voltage Protection Level as low as1.5kV,Response Time≤50ns,Rapidly Clamps Overvoltage, Protects Downstream Device Safety.
Multi-Specification Adaptation
Provides 2P, 4P and Multiple Uc Voltage(275V/385V etc.),compatibleAC/DCSystem,To Suit Various Power Distribution Wire Channel Needs.
Dry Contact Remote Monitoring
"S" Type Dry Contact Model Built-in Dry Contact,Can Access Monitoring System for Failure Reporting,With Combine Centralized Management Platform Enables Remote Operations.
Convenient DIN Rail installation
Standard 35mm DIN Rail Mounting,Compact Structure, Small Size, Suitable for Distribution Cabinet Inner Batch Deployment.
Model Selection Guide
Model Naming Convention
| Model | Protection Class | Max Continuous Running Voltage Uc | Nominal Discharge Current In | Maximum Discharge Current Imax | Voltage Protection Level Up | Response Time | Pole Count | dimension(long*wide*highmm) | Dry Contact | Failure Status View |
|---|---|---|---|---|---|---|---|---|---|---|
| ZL2-V-40/275-2P | T2 | 275V | 20kA | 40kA | 1.5kV | ≤50ns | 2P | 36*83*67 | -- | √ |
| ZLS2-V-40/385-2P | T2 | 385V | 20kA | 40kA | 1.8kV | ≤50ns | 2P | 36*83*67 | √ | √ |
| ZL2-V-40/275-4P | T2 | 275V | 20kA | 40kA | 1.5kV | ≤50ns | 4P | 72*83*67 | -- | √ |
| ZLS2-V-40/385-4P | T2 | 385V | 20kA | 40kA | 1.8kV | ≤50ns | 4P | 72*83*67 | √ | √ |
Technical Specifications
Basic Parameters
| Working Voltage | AC 220V |
| Mounting Method | Standard 35mm DIN Rail Mount |
| Operating Temperature | -40℃~70℃ |
| Working Humidity | 5%~95% |
| Dimensions | 72*83*67mm(4P)/ 36*83*67mm(2P) |
| Housing Material | Thermalplastic flame-retardant materialPBT G20 V0 |
| Protection Class | IP20 |
Electrical Performance
| Protection Class | T2 |
| Max Continuous Running Voltage Uc | 275V/385V AC |
| Nominal Discharge Current In | 20kA |
| Maximum Discharge Current Imax | 40kA |
| Voltage Protection Level Up | 1.5kV/1.8kV |
| Response Time | ≤50ns |
installation Instructions
Installation Dimensions Image
Key Points
- Definition： The T2 Class II SPD is FEXLINK's Class II SPD for secondary protection in distribution cabinets, capable of withstanding 8/20μs induced-lightning impulses.
- Core Capabilities： Current handling covers 20-80kA with fast response, suitable for end-distribution staged protection; can be upgraded with the FSS monitoring module.
- Scenarios： Suitable for floor distribution cabinets, equipment-room PDUs and industrial control-cabinet secondary power protection.
- Related Products： T1 Class I SPD, FSS Smart SPD, FS SPD Monitor.
Frequently Asked Questions
Product FAQ
What is T2 Class II SPD?
The T2 Class II SPD is FEXLINK's Class II SPD for secondary protection in distribution cabinets, capable of withstanding 8/20μs induced-lightning impulses.
What scenarios does T2 Class II SPD apply to?
Suitable for floor distribution cabinets, equipment-room PDUs and industrial control-cabinet secondary power protection.
How does T2 Class II SPD differ from traditional solutions?
Whereas T1 SPDs handle direct lightning, T2 SPDs mainly protect against induced lightning and switching overvoltages, with a smaller form factor and lower unit cost.
How is T2 Class II SPD installed and integrated?
DIN-rail mount inside the distribution cabinet, connect per L/N/PE, and use with an upstream backup-protection circuit breaker.
How can I purchase FEXLINK products or request a demo?
Submit requirements via the Contact page on the FEXLINK website, or call +86-755-8653-6148 to request a demo and selection consultation; engineers will propose a matched solution and quotation based on your scenario.
FEXLINK Business Scope
FEXLINK 微物联，专注配电场景电气安全与数字能源技术研发。我们以多维精准感知与智能算法为核心，通过端侧感知芯片、多维电气时序特征算法、三层电碳大模型，实现雷电防护、接地监测、电气隐患识别；同步完成配电计量、电能质量分析、回路级碳排核算。面向老旧柜体与工业配电，构建从现场采集、本地芯片推理到云端电碳智能中枢的端云协同体系，赋能能源安全管控、能效优化与低碳数字化落地。