T2-ZL(S)1 Surge Arrester
ZL2 Series
Class II composite SPD, MOV high-flow low-residual structure, In 20kA / Imax 40kA, remote-signaling models report failure, for precision-equipment fronts.

Product Overview
This product is a Type 2 power surge protective device installed between the distribution system and equipment to discharge induced lightning strikes and internal overvoltages. It uses varistor elements for fast response and low residual voltage. It features local failure indication, optional remote signaling, and standard DIN-rail mounting, making it suitable for low-voltage distribution scenarios such as communications and industrial applications. It complies with Type 2 power surge protection standards, discharging induced lightning strikes and internal grid overvoltages to effectively reduce the risk of equipment damage. Models with "S" remote signaling include a built-in dry contact that can be connected to a monitoring system to report failure status, enabling remote O&M together with a centralized management platform.
Core capabilities
Type 2 surge protection: complies with Type 2 power surge protection standards, discharging induced lightning strikes and internal grid overvoltages. High discharge capacity: nominal discharge current up to 20kA (max 40kA), capable of withstanding high-energy surges. Low residual voltage output: voltage protection level as low as 1.5kV, response time ≤50ns, quickly clamping overvoltages. Remote signaling monitoring: models with "S" remote signaling include a built-in dry contact that can be connected to a monitoring system to report failure status. Product Features
Data Generated
Product Features
Type 2 surge protection
Complies with Type 2 power surge protection standards, discharging induced lightning strikes and internal grid overvoltages to effectively reduce the risk of equipment damage.
High discharge capacity
Nominal discharge current up to 20kA (max 40kA), capable of withstanding high-energy surges in demanding surge environments.
Low residual voltage output
Voltage protection level as low as 1.5kV with response time ≤50ns, quickly clamping overvoltages to safeguard downstream equipment.
Multiple specification options
Available in 2P and 4P configurations and multiple Uc voltages (275V/385V, etc.), compatible with AC/DC systems to meet different distribution circuit requirements.
Remote signaling monitoring
Models with "S" remote signaling include a built-in dry contact that can be connected to a monitoring system to report failure status, enabling remote O&M with a centralized management platform.
Easy DIN-rail mounting
Standard 35mm DIN-rail clip-on mounting with a compact structure that takes up little space, ideal for batch deployment inside distribution cabinets. Selection Guide
System Topology
Selection Guide
Model naming rules
ZLx - Structure - Iimp / Uc - Protection Mode ZLx Product Category 1: Type 1 power surge arrester; S1: Type 1 power surge arrester (remote signaling); 2: Type 2 power surge arrester; S2: Type 2 power surge arrester (remote signaling); 3: Type 3 surge arrester; 4: signal surge arrester Structure Core structure V: varistor; F: discharge tube; G: graphite gap; BC: hybrid Iimp Maximum impulse current 6kA (6.25kA); 12kA (12.5kA); 15kA; 25kA Uc Maximum continuous operating voltage AC: 255/275/320/385/440/690/760V; DC: 500/600/800/1000/1200/1500/1800/2000V Mode Protection mode AC: 1P; 2P; 3P; 4P; 1+NPE; 3+NPE; DC: U; Y Imax Maximum discharge current 20kA; 40kA; 60kA; 80kA; 100kA Model Structure Poles Uc In Imax Up Response time Dimensions (L×W×H mm) Local indication Remote signaling ZL2-V-x/275-4P Varistor 4P 275V 10/20/30/40kA 20/40/60/80/100kA 1.5kV ≤50ns 72×83×67 √ --- ZLS2-V-x/385-4P Varistor 4P 385V 10/20/30/40kA 20/40/60/80/100kA 1.8kV ≤50ns 72×83×67 √ √ ZL2-V-x/275-2P Varistor 2P 275V 10/20/30/40kA 20/40/60/80/100kA 1.5kV ≤50ns 36×83×67 √ --- ZLS2-V-x/385-2P Varistor 2P 385V 10/20/30/40kA 20/40/60/80/100kA 1.8kV ≤50ns 36×83×67 √ √ Technical Parameters
| Model | Structure / Poles / Uc / In / Imax / Up / Response time / Dimensions (L×W×H mm) / Local indication / Remote signaling |
| ZL2-V-x/275-4P | Varistor / 4P / 275V / 10/20/30/40kA / 20/40/60/80/100kA / 1.5kV / ≤50ns / 72×83×67 / √ / --- |
| ZLS2-V-x/385-4P | Varistor / 4P / 385V / 10/20/30/40kA / 20/40/60/80/100kA / 1.8kV / ≤50ns / 72×83×67 / √ / √ |
| ZL2-V-x/275-2P | Varistor / 2P / 275V / 10/20/30/40kA / 20/40/60/80/100kA / 1.5kV / ≤50ns / 36×83×67 / √ / --- |
| ZLS2-V-x/385-2P | Varistor / 2P / 385V / 10/20/30/40kA / 20/40/60/80/100kA / 1.8kV / ≤50ns / 36×83×67 / √ / √ |
Technical Parameters
Basic parameters
Operating voltage AC 220V Mounting Standard 35mm DIN-rail mounting Operating temperature -40℃~70℃ Operating humidity 5%~95% Housing material Thermoplastic flame-retardant material PBT G20 V0 Protection rating IP20
| Operating voltage | AC 220V |
| Mounting | Standard 35mm DIN-rail mounting |
| Operating temperature | -40℃~70℃ |
| Operating humidity | 5%~95% |
| Housing material | Thermoplastic flame-retardant material PBT G20 V0 |
| Protection rating | IP20 |
Surge protection parameters
Protection class T2 External dimensions 72×83×67mm (L×W×H) Maximum continuous operating 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
| Protection class | T2 |
| External dimensions | 72×83×67mm (L×W×H) |
| Maximum continuous operating 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
a
Installation dimensions diagram
T2-ZL(S)1 Surge Protective Device Installation dimensions diagram b
Interface description
Power interface definition No. Interface Definition 1 L1, L2, L3 Three-phase live wires 2 N Neutral 3 PE Ground
| No. | Interface / Definition |
| 1 | L1, L2, L3 / Three-phase live wires |
| 2 | N / Neutral |
| 3 | PE / Ground |
Key Points
Definition: The T2-ZL(S)1 surge protective device is a FEXLINK hybrid SPD that integrates voltage-switching and voltage-limiting elements, designed for high-demand applications. Core capabilities: With a hybrid voltage-switching and voltage-limiting structure, it responds faster with lower residual voltage, making it ideal for fine protection in front of sensitive equipment. Application scenarios: Suitable for scenarios sensitive to residual voltage, such as precision instruments, medical equipment, and data centers. Related products: Type 2 surge protective devices, Type 1 surge protective devices, and FSS intelligent surge protective devices.
FAQ
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