RJ45 surge protector for POE++
MJ8-POE-A
MJ8-POE-A
Part Number: 581519
  • POE++ compatible
  • Gigabit Ethernet (Cat.5E)
  • Shielded enclosure and connectors
  • 2 kA discharge capability
  • UL497A

The MJ8-POE is designed to protect sensitive data-processing equipment connected to a POE++ (Power over Ethernet) network from transient overvoltages. The MJ8-POE surge protector is deployed in signal network applications with data transmission speeds of 100 and 1000 Mbps. 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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Network Gigabit Ethernet (Cat.5E)
Nominal line voltage Un 48 Vdc
Max. DC operating voltage Uc 60 Vdc
Max. frequency f max. > 100 MHz
Max. data rate 1000 Mbps
Insertion loss < 1 dB
Max. load current IL 2000 mA
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 Diode écrêtage
SPD configuration 8 wires + shielded
Connection to Network RJ45 shielded connectors female input/output
Format Metallic box with connectors input/output
Mounting Mounting flange,Screw lug, DIN Rail
Housing material Aluminium
Operating temperature Tu -40/+85°C
Protection rating IP20
Failsafe mode Short-circuit - transmision cut-off
Disconnection indicator Transmission interrupt - default mode 2
Pin outs (1-2)(3-6)(4-5)(7-8)
Dimensions See diagram
Weight 0.115 kg
Standards compliance IEC 61643-21 / EN 61643-21 / UL497 B IEEE 802-3af/3at/3bt