• Series
  • Model
  • Brand / Made in
  • POE++ compatible
  • Gigabit Ethernet (Cat.6A)
  • Shielded enclosure and connectors
  • 2 kA discharge capability
  • UL497B certified
  • IEC 61643-21, EN 61643-21 compliance
The MJ8-POE-C6A is designed to protect sensitive data-processing equipment connected to a POE++ (Power over Ethernet) network from transient overvoltages. This SPD is qualified with the maximum transmission speed and cabling category used for these Ethernet networks: 10Gigabit Ethernet and Category 6A. Obviously, it is applicable for the Ethernet networks with lower categories.
The MJ8-POE-C6A surge protector is deployed in signal network applications with data transmission speeds up to 10 GMbps. The surge protector is housed in a shielded enclosure with high quality RJ45 shielded jacks. The transient protection circuit is based on high energy gas discharge tubes (GDT) and a network of fast response silicon avalanche diodes (SAD) to achieve sharp clamping of very large surge events.


  • Network: 10Gigabit Ethernet - Cat 6A cabling specification
  • Nominal line voltage Un: 48 Vdc
  • Max. DC operating voltage Uc: 60 Vdc
  • Max. frequency    f max.: 500 MHz
  • Max. data rate: 10 Gbps
  • Insertion loss: < 1 dB
  • Protection level Up: 70 V
  • Impulse current Iimp: 500 A
  • Line/Line Nominal discharge current In L/L: 500 A
  • Line/Ground Nominal discharge current In L/PE: 2000 A


  • Technology: GDT+Clamping diode
  • SPD configuration: 4 pairs+shielded
  • Connection to Network: RJ45 shielded female input/output
  • Format: Metallic box with connectors input/output
  • Mounting: Mounting flange,Screw lug, DIN Rail
  • Accessory(s) provided: DIN rail adapter, screw, screw nut, earthing plate, countersunk screw, cable shoe
  • Housing material: Aluminium
  • Operating temperature: -40/+85°C
  • Protection rating: IP20
  • Failsafe mode: Short-circuit
  • Disconnection indicator: Transmission interrupt - default mode 2
  • Pinout: (1-2)(3-6)(4-5)(7-8)
  • Dimensions: See diagram


  • Standards compliance: IEC 61643-21/ EN 61643-21 / UL497B IEEE 802-3af/3at/3bt/ ANSI/TIA-568-C.1
  • Certification: UL listed
The surge protector for IT networks must be installed while respecting the following principles:
  • SPDs must be installed on the both sides of the transmission line (e.g. server side and terminal equipment side)
  • The surge protector and the protected equipment must be interconnected with the bonding network of the installation.
  • The earthing conductor (between the earth output of the SPD and the bonding circuit of the installation) must be as short as possible (less than 0.50 m).
  • The AC power supply of the equipment must also be surge protected.


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