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POE surge protector
MJ8-POE-B
Surge protector for POE ++ and Category 6A cabling network
MJ8-POE-B
Part Number
581518
POE++ compatible
Gigabit Ethernet (Cat.5E)
Shielded enclosure and connectors
2 kA discharge capability
UL497B certified
IEC 61643-21, EN 61643-21 compliance
Datasheet
Installation Sheet
Tender specifications
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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.
Select another reference:
MJ8-POE-B
MJ8-POE-C6A
Electrical Properties
Mechanical Properties
Norms
Schemas
Network
POE-B and Gigabit Ethernet, High POE
Nominal line voltage
Un
5 Vdc/48 Vdc
Max. DC operating voltage
Uc
7.5 Vdc (1.2.3.6) - 60 Vdc (4.5.7.8)
Max. frequency
f max.
100 Mhz
Max. data rate
10/100/1000 Mbps
Insertion loss
< 1 dB
Protection level
Following the test category C3 (IEC61643-21) - Line/Line
Up
20/70 V
Impulse current
2 x 10/350µs Test - D1 Category
Iimp
500 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
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
0.115 kg
Standards compliance
IEC 61643-21 / EN 61643-21 / UL497 B / IEEE 802-3ab/3at
Certification
UL 497B
×
Description:
Surge protector for POE ++ and Category 6A cabling network
Standards compliance:
IEC 61643-21 / EN 61643-21 / UL497 B / IEEE 802-3ab/3at
Certification:
UL 497B
Technology:
GDT+Clamping diode
SPD configuration:
8 wires+shielded
Network:
POE-B and Gigabit Ethernet, High POE
Max. DC operating voltage:
7.5 Vdc (1.2.3.6) - 60 Vdc (4.5.7.8)
CITEL
Reference:
MJ8-POE-B
Part Number:
581518
Or equivalent
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