四川中光防雷科技股份有限公司
Products
ZGXL-MDZ4J-24c Signal SPD

General                                                                                
        The ZGXL-MDZ4J-24c signal SPD is used for protecting industrial control networks, RS422/485 interfaces, private wires, automatic control and instrument lines, data lines and telephone devices, fax machines and other devices from lightning. This product uses two-stage protection to protect devices, that is, current release in the first stage and current clamping in the second stage. When a transmission line suffers lightning induction or surge attack, the SPD diverts lightning and surge current to ground, and clamps lightning and surge overvoltage to the scope allowed by the device.
Features                                                                                 
        Easy installation: Terminal-based connection and guide rail-based installation
        Hot-pluggable, compact size, high discharge capacity, fast response (ns), low protection level
Standards Complied                                                                             
        GB/T 18802.21-2016 Low-voltage surge protective devices – Part 21: Surge protective devices connected to telecommunications and signaling networks – Performance requirements and testing methods
Technical Data                                                                            
Operating Environment
Temperature –40°C to 85°C
Humidity ≤ 90% (25°C)
Altitude ≤ 4000 m
Technical Parameters
Rated voltage 24 V
Max. continuous operating voltage UC   33 V DC  
Rated operating current IL (normal temperature) 0.75 A
Nominal discharge current 8/20 μs 10 kA
Total discharge current 8/20μs 20 kA
Impulse discharge current 10/350μs 1 kA
Voltage protection level (8/20μs) Line-Line ≤ 105 V
Line-PE ≤ 85 V
Voltage protection level (1 kV/μs) Line-Line ≤ 90 V
Line-PE ≤ 45 V
Internal Series resistance 1.8 ohms
Cut-off frequency 6.8 MHz
Capacitance ≤ 1.0 nF
Protected pin Four wires (1, 2, 3, 4)
Enclosure material PBT
Torque: Terminal 0.5 Nm
Color Cold gray
Degree of protection of enclosure (IP code) IP20
Fire resistance UL94 V-0
Circuit Diagram
 

Configuration                                                                             
Dimensions (H x W x D): 69 mm x 93 mm x 12 mm