Transient Voltage Type 2 Surge Arrester PBT Material IP20 Finger Safe Design

Product Description

Connectable Type 2 Surge Lightning Arrester / Protector Low Voltage

 
The general principle of lightning protection is:
 
(1) Use external protection to direct most of the lightning current into underground discharge.
(2) Use an overvoltage protector to block the overvoltage wave introduced along the power line, data line, and signal line (internal protection).
(3) Use an over-voltage protector to limit the surge voltage amplitude on the protected equipment.
(4) Use a photoelectric isolator to isolate the RS232 interface between communication and RTU to avoid electrical connection of interface equipment.
 
General methods and techniques of lightning protection:
 
(1) Set up a set of good building lightning protection belts and lightning protection nets, and ground them together with the main steel bars;
(2) External equipment (antennas, etc.) should be placed within the protection angle range of the building's lightning protection net as far as possible:
(3) Adopt common grounding measures;
(4) Install special lightning protection devices with reliable performance at the entrances and exits of power, signal or data lines;
(5) Indoor equipment should be kept away from lightning conductors as far as possible;
(6) Indoor wiring, including all types of transmission lines, should minimize the loops, and it is best to add shielded wires and ground at both ends.
OBV5-C40
The surge arrestors OBV5-C40-LT meet the type 2 requirement class according to IEC 61643-11. These devices protect low-voltage consumer systems from overvoltages of all types and are available in single-pole to four-pole versions. The use of high-performance varistors permits a rapid response time and a low protection level, without any line follow current. If circumstances are uncertain and there is a risk of fire from an overload, the internal cut-off unit disconnects the arrestor from the mains if necessary. In addition, the QR code printed on the arrestor allows disary. In addition, the QR code printed on the arrestor allows direct access to the online installation instructions.
Technical Parameters

 
Feature&Benefits
 
1,Protect electric system and on-loading electrical apparatus from thunder and instantaneous over-voltage.
2,Protect transmission of Ethernet signals with 48V DC / 34V AC power supply circuits against
lightning induced surges.
3,Enhanced surge protection.
4,For mounting on 35mm DIN rails acc. to EN 60715.
5,It can effectively ensure the equipments work properly.
·Easy installation or retrofit.
·Din-rail mountable.
·Fail-safe /self-protected designRemote indicator (optional) with 3pin NO/NC contact.
·IP20 finger-safe design
 Visual indicator.
·Small foot print.
 
Application
●AC/DC distribution
●Power supplies
●Industrial automation
●Telecommunications
●Motor controls systems
●PLC applications
●Power transfer equipment
●HVAC applications
● AC drives
●UPS systems
●Security systems
●IT/Data centers
 
Others
Technology SPD parameter(Note:According to user requirement ,can be customized Uc=140V,440V,550V,voltage range of range of the SPD):

 
Transient voltage surgesin lv power lines
Transient overvoltages are voltage surges that can reach tens ofkilovolts with a duration of the order of microseconds.Despite theirshort duration, the high energy content can cause serious problemsto equipment connected to the line, from premature aging to destruction, causing disruptions to service and financial loss.Thistype of surge can have various different causes, including atmospheric lightning directly striking the external protection(lightning rods) on a building or transmission line or the associatedinduction of electromagnetic fields on metallic conductors.
Outdoor and longer lines are the most exposed to these fields,which often receive high levels of induction.
It is also common for non-weather phenomena, such as transformer centre switching or the disconnection of motors orother inductive loads to cause voltage spikes in adjacent lines.
 

 
Importance of theground connection
Overvoltage protectors (SPD) divert excess energy toground, so limiting the peak voltage to an acceptablevalue for connected electrical equipment.
A ground connection in adequate condition is, therefore,a key aspect for effective protection against overvoltages.Monitoring ground connection condition guaranteesproper operation of surge protection devices.