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.
| 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 |
|
GDT+Clamping diode |
| 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 |
| Accessory(s) provided |
|
DIN rail adapter, screw, screw nut, earthing plate, countersunk screw, cable shoe |
| 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 |
| Pinout |
|
(1-2)(3-6)(4-5)(7-8) |
| Dimensions |
|
See diagram |
| Weight |
|
0.120 kg
|
| Standards compliance |
|
IEC 61643-21 / EN 61643-21 / UL497 B IEEE 802-3af/3at/3bt |
| Certification |
|
UL listed |
|
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