Surge protector for POE ++ and Category 6A cabling network

Part Number 581541
  • 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.

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10Gigabit Ethernet - Cat 6A cabling specification
Protection modes (network)
Protection modes (POE)
Nominal line voltage
Un 48 Vdc
Max. DC operating voltage
Uc 60 Vdc
Max. frequency
f max. 500 MHz
Max. data rate
10 Gbps
Max. load current
IL 2 A
Protection Level
C3 category (10/1000μs), 300 applications@10 A, X-X (Line/Line)
Up 70 V
Protection level
C3 category (10/1000μs), 300 applications@10 A, X-C (Line/Earth)
Up 500 V
Protection Level
C3 Category (10/1000µs), 300 applications @ 10A, (Pair-Pair, POE)
Up 80 V
Impulse current
2 x 10/350µs Test - D1 Category
Iimp 400 A
Line/Line Nominal discharge current
C2 Category
In L/L 500 A
Nominal Discharge Current, X-C (Line/Earth)
8/20µs Test x 10 - C2 Category
In L/PE 2000 A
Line resistance (± 10%)
0 Ohm
@1MHz, X-C (Line/Earth)
C < 5 pF
GDT+Clamping diode
SPD configuration
4 pairs+shielded
Connection to Network
RJ45 shielded connectors Female input/output
Metallic box with connectors input/output
Mounting flange,Screw lug, DIN Rail
Accessory(s) provided
DIN rail adapter, screw, screw nut, earthing plate, countersunk screw, cable shoe
Housing material
Operating temperature
Tu -40/+85°C
Protection rating
Failsafe mode
Disconnection indicator
Transmission interrupt - default mode 2
See diagram
0.106 kg
Standards compliance
IEC 61643-21/ EN 61643-21 / UL497B IEEE 802-3af/3at/3bt/ ANSI/TIA-568-C.1
UL 497B