FSS Smart Surge Protective Device
FSS Series
Integrated smart SPD with built-in monitoring and communication, LCD/OLED display, combined lightning protection and status monitoring.
Product Overview
The FSS Smart Surge Protective Device is FEXLINK's flagship full-element smart surge protective device, supporting a protection range of 10KA-80KA for both single-phase and three-phase scenarios. It features a built-in tamper-proof function, supports RS485 communication by default, also supports RJ45 and Zigbee communication, and can be developed with NB-IoT/CAT1-based communication on request. Proprietary software algorithm patents and embedded programs, matched with industrial-grade measurement and control chips, deliver precise data processing, communication and predictive analysis. It incorporates 4 temperature sensors, 3 leakage current sensors and surge intrusion action transformers for multi-dimensional precision sensing, thoroughly solving problems such as inaccurate degradation analysis.
Core Capabilities
All-in-one design: all sensors and acquisition boards are built in, with digital tube/OLED display and physical button menu queries. Complete monitoring elements: 4-channel varistor temperature, 3-channel leakage current, lightning strike counting, upstream SCB, grounding status and operating voltage. Built-in protocol: fuzzy algorithms for degradation analysis and service life estimation based on temperature and leakage current. Multiple communication options: RS485/Ethernet/Zigbee, with caching and local computing support, and private/local deployment support. Product Features
Data Generated
Product Features
Multiple Communication Options
Built-in tamper-proof function, RS485 communication by default, also supports RJ45 and Zigbee communication, and can be developed with NB-IoT/CAT1-based communication on request. Supports communication-based caching and local computing.
Built-in Protocol
Thoroughly solves problems such as inaccurate degradation analysis; dedicated configuration software enables differentiated configuration of different components, and fuzzy algorithms enable degradation analysis based on temperature and leakage current.
Complete Model Range
The surge protective device supports a protection range of 10KA-80KA for both single-phase and three-phase scenarios; supports hybrid networking across multiple communication methods; supports private/local deployment.
All-in-One Design
Digital tube and OLED screen display all data; physical buttons support menu-style queries and configuration; all sensors and acquisition boards are built in.
Complete Monitoring Elements
Built-in 4-channel temperature monitoring units for direct body temperature monitoring and analysis of varistors and other components. Upstream circuit breaker, SCB monitoring and lightning strike counting are all included.
Wide Range of Applications
Equipment lifecycle management, fault arc/arc flash monitoring, external overvoltage monitoring, electrical hazard monitoring in high- and low-voltage distribution cabinets; predictive maintenance of load motors. Selection Guide
System Topology
Selection Guide
Model Naming Rules
FSS - 1 2 0 0 2 - R FSS Product Smart surge protective device 1 Poles 1=2P; 2=4P 2 Varistor 1=Imax20kA; 2=Imax40kA; 3=Imax60kA; 4=Imax80kA 0 Leakage current function 0=No leakage current; 1=Full current 0 Display method 0=Digital tube; 1=OLED 2 Temperature 2=2 channels; 4=4 channels R Communication method R=RS485; E=Ethernet; Z=Zigbee Model Poles Imax In Up Leakage current monitoring RS485 Zigbee Ethernet FSS-11000-R/Z/E 2P 20kA 10kA 1.5kV --- √ √ √ FSS-11100-R/Z/E 2P 20kA 10kA 1.5kV Supported √ √ √ FSS-12000-R/Z/E 2P 40kA 20kA 1.8kV --- √ √ √ FSS-12100-R/Z/E 2P 40kA 20kA 1.8kV Supported √ √ √ FSS-13000-R/Z/E 2P 60kA 30kA 2.0kV --- √ √ √ FSS-13100-R/Z/E 2P 60kA 30kA 2.0kV Supported √ √ √ FSS-14000-R/Z/E 2P 80kA 40kA 2.2kV --- √ √ √ FSS-14100-R/Z/E 2P 80kA 40kA 2.2kV Supported √ √ √ FSS-21000-R/Z/E 4P 20kA 10kA 1.5kV --- √ √ √ FSS-21100-R/Z/E 4P 20kA 10kA 1.5kV Supported √ √ √ FSS-22000-R/Z/E 4P 40kA 20kA 1.8kV --- √ √ √ FSS-22100-R/Z/E 4P 40kA 20kA 1.8kV Supported √ √ √ FSS-23000-R/Z/E 4P 60kA 30kA 2.0kV --- √ √ √ FSS-23100-R/Z/E 4P 60kA 30kA 2.0kV Supported √ √ √ FSS-24000-R/Z/E 4P 80kA 40kA 2.2kV --- √ √ √ FSS-24100-R/Z/E 4P 80kA 40kA 2.2kV Supported √ √ √ Technical Parameters
| Model | Poles / Imax / In / Up / Leakage Current Monitoring / RS485 / Zigbee / Ethernet |
| FSS-11000-R/Z/E | 2P / 20kA / 10kA / 1.5kV / --- / √ / √ / √ |
| FSS-11100-R/Z/E | 2P / 20kA / 10kA / 1.5kV / Supported / √ / √ / √ |
| FSS-12000-R/Z/E | 2P / 40kA / 20kA / 1.8kV / --- / √ / √ / √ |
| FSS-12100-R/Z/E | 2P / 40kA / 20kA / 1.8kV / Supported / √ / √ / √ |
| FSS-13000-R/Z/E | 2P / 60kA / 30kA / 2.0kV / --- / √ / √ / √ |
| FSS-13100-R/Z/E | 2P / 60kA / 30kA / 2.0kV / Supported / √ / √ / √ |
| FSS-14000-R/Z/E | 2P / 80kA / 40kA / 2.2kV / --- / √ / √ / √ |
| FSS-14100-R/Z/E | 2P / 80kA / 40kA / 2.2kV / Supported / √ / √ / √ |
| FSS-21000-R/Z/E | 4P / 20kA / 10kA / 1.5kV / --- / √ / √ / √ |
| FSS-21100-R/Z/E | 4P / 20kA / 10kA / 1.5kV / Supported / √ / √ / √ |
| FSS-22000-R/Z/E | 4P / 40kA / 20kA / 1.8kV / --- / √ / √ / √ |
| FSS-22100-R/Z/E | 4P / 40kA / 20kA / 1.8kV / Supported / √ / √ / √ |
| FSS-23000-R/Z/E | 4P / 60kA / 30kA / 2.0kV / --- / √ / √ / √ |
| FSS-23100-R/Z/E | 4P / 60kA / 30kA / 2.0kV / Supported / √ / √ / √ |
| FSS-24000-R/Z/E | 4P / 80kA / 40kA / 2.2kV / --- / √ / √ / √ |
| FSS-24100-R/Z/E | 4P / 80kA / 40kA / 2.2kV / Supported / √ / √ / √ |
Technical Parameters
Basic Parameters
Operating voltage AC 220V±20% Product power consumption 2W Operating temperature -20℃~60℃ Operating humidity <95% Product weight 600g 2P Dimensions 72*100*68mm (L×W×H) 4P Dimensions 108*100*68mm (L×W×H) Housing material Thermoplastic UL94V0 Protection rating IP20 Mounting method Standard 35mm DIN rail
| Operating voltage | AC 220V±20% |
| Product power consumption | 2W |
| Operating temperature | -20℃~60℃ |
| Operating humidity | <95% |
| Product weight | 600g |
| 2P dimensions | 72*100*68mm (L×W×H) |
| 4P dimensions | 108*100*68mm (L×W×H) |
| Housing material | Thermoplastic UL94V0 |
| Protection rating | IP20 |
| Mounting method | Standard 35mm DIN rail |
Surge Protection Functions
SPD standard compliance GB/T 18802.1 SPD test class T2 Maximum continuous operating voltage Uc 385V Nominal discharge current In 10/20/30/40kA Maximum discharge current Imax 20/40/60/80kA Voltage protection level Up 1.5/1.8/2.0/2.2kV Response time 25ns Poles 2P/4P
| SPD standard compliance | GB/T 18802.1 |
| SPD test class | T2 |
| Maximum continuous operating voltage Uc | 385V |
| Nominal discharge current In | 10/20/30/40kA |
| Maximum discharge current Imax | 20/40/60/80kA |
| Voltage protection level Up | 1.5/1.8/2.0/2.2kV |
| Response time | 25ns |
| Poles | 2P/4P |
Smart Monitoring Functions
Communication method RS485/Zigbee/Ethernet Communication protocol Modbus/MQTT Lightning strike counting 0~9999, minimum trigger 0.1kA Status monitoring SPD voltage, grounding and trip status Temperature measurement -20.0~105.0℃, ±0.5℃ Leakage current measurement 50.0~1500.0μA, ±10μA Service life estimation 0~100.0% Installation Instructions
| Communication method | RS485/Zigbee/Ethernet |
| Communication protocol | Modbus/MQTT |
| Lightning strike counting | 0~9999, minimum trigger 0.1kA |
| Status monitoring | SPD voltage, grounding and trip status |
| Temperature measurement | -20.0~105.0℃, ±0.5℃ |
| Leakage current measurement | 50.0~1500.0μA, ±10μA |
| Service life estimation | 0~100.0% |
Installation Instructions
a
Installation Dimension Diagram
2P dimension diagram (72×100×68mm) 4P dimension diagram (108×100×68mm) b
Interface Description
2P smart surge protective device 4P smart surge protective device Interface definitions Number Definition 1 L、N: Power input AC 220V 2 A、B: RS485 bus interface 3 L1、L2、L3、N: Connect to phase wires, neutral wire and ground wire 4 Antenna interface: for wireless communication, the antenna interface is at the bottom of the module 5 Ethernet port: for Ethernet communication, the RJ45 port is at the top of the module
| Number | Definition |
| 1 | L、N: Power input AC 220V |
| 2 | A、B: RS485 bus interface |
| 3 | L1、L2、L3、N: Connect to phase wires, neutral wire and ground wire |
| 4 | Antenna interface: for wireless communication, the antenna interface is at the bottom of the module |
| 5 | Ethernet port: for Ethernet communication, the RJ45 port is at the top of the module |
Key Points
Definition: The FSS Smart Surge Protective Device is FEXLINK's flagship full-element SPD, integrating the SPD body with a smart monitoring module, featuring lightning current recording, leakage current detection, temperature monitoring, service life warning and communication upload capabilities. Core capabilities: 8 built-in sensor groups (4-channel temperature, 3-channel leakage current, lightning strike counting and voltage monitoring), fuzzy algorithms for SPD degradation analysis and service life estimation, supporting RS485/Ethernet/Zigbee multi-protocol networking. Applicable scenarios: suitable for power lightning protection and online SPD status monitoring in distribution cabinets, power distribution rooms, telecommunication rooms, industrial plants and other scenarios. Related products: FSP Lightning Protection Monitoring Base, FS Surge Protective Device Monitor, ESX Intelligent Edge Computing Gateway and T2-class SPD series.
FAQ
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FR Ground-Resistance Detector
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