Gigabit LAN Network Surge Protector, PTF-61-PRO/PoE/T with Heat-Shrink Cover

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  • Code: PTF-61-PRO/PoE/T
  • Manufacturer's code: 5904041752421
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High-quality 1-channel LAN protection for 1GB Gigabit Ethernet networks, designed for Category 6 installations, 1000Base-T and 1000Base-TX, PTF-61-PRO/PoE/T

1-channel LAN protection, designed for surge protection of Gigabit Ethernet networks, compatible with 1000Base-T and 1000Base-TX standards. It includes direct discharge of large surge currents individually from each wire, without commonly used intermediary elements that weaken surge resistance and have a huge impact on electromagnetic interference emission or absorption. Very carefully designed multilayer printed circuits, special production process and modern components have allowed to achieve excellent parameters required in category 6 cabling.

Independent PoE power protection circuits eliminate voltage increase between pairs 1,2 - 3,6 and 4,5 - 7,8. This solution protects end device power supplies from damage caused by surges from atmospheric discharges or uncontrolled voltage increase, for example due to PoE power supply failure. The solutions used are completely neutral for each PoE standard and protect each of them, including Hi PoE.

The PTF-61-PRO/PoE/T is designed for installation near the endpoints of LAN networks such as: PC computers, PLC controllers, IPC cameras, radio transmitters, and Internet of Things devices. The lack of housing allows for placement of the protector in very small spaces. Proper grounding of the protection using the PE line is necessary for correct operation, preferably from the shortest, dedicated grounding point. It is also important to follow the directional operation of the protective function described in the user manual and not reverse the device connections in the LAN installation, which can cause improper operation or even damage.

The product is tested according to categories D1, C2, C1, B2. It is intended for use at the boundaries of LPZ0/LPZ1 zones or higher.

Proper protection of LAN networks

Proper protection of gigabit LAN network using two PTF-61 devices


The protection can also be used on the LAN switch side, however, for multiple channels, we recommend using multi-channel protections from the PTU-6xx or PF-6xx series.

LAN 6 Category Gigabit Ethernet Network Security


Recommended security for a 16-point Gigabit Ethernet LAN network


Technical specification

Data line
Number of LAN channels
Supported Ethernet standards
10Base-T, 100Base-T, 1000Base-T, 1000Base-Tx
Compatibility with cabling Cat. 6
Used with cabling FTP, UTP of any category
Input connector (unprotected side) Shielded RJ-45 socket
Output connector (protected side) Shielded RJ-45 socket
Number of protection levels
2 (GDT, TVS)
Rated DC voltage (line-ground) UN 90V DC
Maximum continuous operating voltage (line-ground) UC 110V DC
C1: Protection level 1kV/μs (line-ground) UP 600V
C2: Discharge current (8/20µs, line-ground) lmax / wire 2.5kA (max)
D1: Maximum lightning current (10/350µs, line-ground) Iimp
Rated DC voltage (line-line) UN 3.3V DC
Maximum continuous operating voltage (line-line) UC 3.5V DC
B2: Protection level 1kV/μs (line-line) UP
C1: Discharge current (8/20µs, line-line) Iimp 100A
Decoupling element Surge resistor
Protected lines 1-2, 3-6, 4-5, 7-8
Capacitance (line-line) @1MHz 6-15pF
Capacitance (line-ground) @1MHz 1-2pF
Series resistance 2.2Ω / line
Rated current IN 300mA / line
PoE Line
Rated DC voltage (line-line) UN 57V DC
Maximum continuous operating voltage (line-line) UC 64V DC
B2: Protection level 1kV/μs (line-line) UP 93V DC
C1: Discharge current (8/20µs, line-line) Iimp 100A
Protected lines (pairs)
(1+2)-(3+6), (4+5)-(7+8)
PoE operation standard Compatible with all types including Hi PoE
Common features
Dimensions 65 x 20 x 35 (mm)
Application Protection of devices installed inside / outside
Mounting method Freestanding housing
Grounding method Wire
Housing tightness IP20
Operating temperature -40ºC~60ºC