IP camera surge arrester without grounding, PTF-51-ENG/PoE/Micro

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  • Code: PTF-51-ENG/PoE/Micro
  • Manufacturer's code: 5904041750335
  • Weight: 0.10 kg
  • Availability: Duża ilość produktów Produkt available
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PTF-51-ENG/PoE/Micro, LAN surge protection device operating without grounding, CCTV protection, designed to protect IP cameras and LAN switches installed indoors.

PTF-51-ENG/PoE/Micro is a new miniature surge protector that utilizes the Extreme No Ground solution. It is designed to protect LAN networks where there is a problem with bringing the grounding line PE to individual camera points or other LAN end devices. The device can be used to protect external cameras, but the protection will be limited solely to the elimination of a small electromagnetic impulse induced in the LAN cable. It works with LAN networks 10-BaseT and 100-BaseT, based on UTP category 5 or 6 cables.

Its small dimensions and built-in cable with an RJ-45 connector allow for easy connection and concealment of the device in small enclosures. It is ideal for protecting IP industrial cameras equipped with original bases that hide accessories and all connections. The surge protector protects against the effects of surges and lightning strikes, as well as acts of vandalism (the operation of stun guns). It individually protects each transmission pair from surges induced within individual pairs and in individual groups of pairs used for PoE power supply.

To achieve the full effectiveness of the ENG series surge protector, it is necessary to use at least a PRO series surge protector on the other side of the cable (in a single-channel or multi-channel version) and provide it with appropriate grounding.

Thanks to the use of MOSFET technology, the PTF-51 protection eliminates surges occurring within transmission lines three times more effectively and has a lower susceptibility to damage due to prolonged surge currents.

A special connection arrangement protects LAN devices from voltage spikes on PoE power lines above 58V, in each of the possible standards (also transmitted on transmission lines). Inside the surge protector, lines 4-5 and 7-8 are connected because LAN 100Base-T uses them solely for PoE power supply.

The device does not provide continuity of the shield for FTP cable; if such continuity is required, it is necessary to use standard PTF-51 or PTF-51/DIN devices.

 

Surge protector LAN without grounding

 

Surge protection for cameras without grounding

Examples of correct installations without using grounding on the camera side

 

Examples of correct but not recommended configurations for the ENG version surge protector

 

Technical Specification
PARAMETER NAME
 VALUE
Data Line
Number of LAN channels
 1
Supported Ethernet standards 10Base-T, 100Base-T
Used with cabling FTP, UTP of any category
Input connector (unprotected side) RJ-45 socket
Output connector (protected side) Cable with RJ-45 connector
Number of protective stages
 3
Nominal DC voltage (line-line) UN 3.3V DC
Maximum continuous operating voltage (line-line) UC 3.5V DC
Protection level 1kV/μs (line-line) UP
 <10V
Discharge current (8/20µs, line-line) Iimp 500A
Decoupling element MOSFET fuse
Protected lines 1-2, 3-6
Capacitance (line-line) @1MHz 6-15pF
Series resistance 6Ω / line
Nominal current IN 300mA / line
PoE Line
Nominal DC voltage (line-line) UN 57V DC
Maximum continuous operating voltage (line-line) UC 64V DC
Protection level 1kV/μs (line-line) UP 93V DC
Discharge current (8/20µs, line-line) Iimp
 600A
Protected lines (pairs)
 (1+2)-(3+6), (4+5)-(7+8)
PoE operating standard compliant with IEEE 802.3af/at/bt-type 3 (HiPoE, UPOE)
Common Features
Dimensions 56 x 31 x 27.5 (mm) - housing only
Application Protection of devices installed indoors
Mounting method Free-standing housing
Grounding method
 -
IP rating IP40
Operating temperature -40ºC~60ºC