AC drives Type 2 Surge Protector , Uc 385V Earthing Lightning Protection System
|Place of Origin:||Dongguan China|
|Certification:||CE / SGS / ISO9001|
Payment & Shipping Terms:
|Minimum Order Quantity:||200 piece|
|Packaging Details:||export package / Negotiate|
|Delivery Time:||5-15 days after payment|
|Payment Terms:||T/T, L/C, Western Union|
|Supply Ability:||60000 pieces per month|
|Name:||40KA Surge Protector||Material:||PBT/Nylon/VDR|
|CertificationCE,CQC:||CE / CQC / SGS||Application:||Power Transfer Equipment|
earthing lightning protection system,
Uc 385V Type 2 Surge Protector,
Earthing Type 2 Surge Protector
40KA Type 2 Surge Protector / Earthing Lightning Protection System
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.
|Maximum continuous voltage AC||Uc||V||275/320/385/440|
|SPD to EN 61643-11||Type 2|
|SPD to IEC 61643-1||class II|
|Nominal discharge current (8/20< s)||In||kA||20|
|Maximum discharge current (8/20< s)||Imax||kA||40|
|Voltage protection level||Up||kV||< 1,3/1,5/1,8/2,0|
|Response time||tA||ns||< 25|
|Maximum back-up fuse||A||125|
|Protection rating||IP 20|
|Max. cable cross-section flexible (fine-wire)||mm²||25|
|Max. cable cross-section rigid (single wire/multi-wire)||mm²||35|
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.
·Fail-safe /self-protected designRemote indicator (optional) with 3pin NO/NC contact.
·IP20 finger-safe designVisual indicator.
·Small foot print.
●Motor controls systems
●Power transfer equipment
● AC drives
Lightning protection grounding
It is not only a systematic project but also a dangerous project. Direct lightning strikes have direct damage to the human body, while induced lightning will cause a huge impact on the equipment and damage the equipment in the equipment room. Therefore, it is not only good to understand the basic knowledge of lightning protection and grounding. The protective equipment room can better protect the personal safety of employees.
1. The use type and function of the arrester:
The commonly used surge arresters are valve type, exhaust type, zinc oxide, etc. The lightning arrester is used to protect the lightning overvoltage from intruding into the substation or other buildings along the line so as not to endanger the insulation of the protected object. Nowadays, zinc oxide surge arresters are often used outdoors in the power distribution, and valve arresters are generally used indoors.
2. The concept of safe current:
Safe current refers to the maximum current that the human body can get rid of after an electric shock. The safety current lightning protection device stipulated in our country is 30 mA. The safety current is related to factors such as the time of electric shock, the nature of the current, the path of the current, and the weight and health status.
3.The concept of safe voltage:
An area voltage refers to a voltage that does not directly cause death or disability. The safety extra-low voltage specified in our country is 36 volts.
4.The concept of land:
Electrical ground refers to a place where the potential is zero; this ground generally refers to a place about 20 meters away from the ground fault point.
5. The concept of working grounding and protective grounding:
The grounding to ensure that the power system and equipment meet the requirements of normal operation is called working grounding. The grounding to protect personal safety from contact with electricity is called protective grounding. For example: the neutral point of the transformer is grounded, and the grounding of the lightning arrester and the lightning arrester is the working ground. The grounding of the secondary side terminal of the transformer and the grounding of the equipment surge protector shell are the protective grounding.
Technology SPD parameter(Note:According to user requirement ,can be customized Uc=140V,440V,550V,voltage range of range of the SPD):
|Type No.||Rated Voltage(V) Un||Continuous Voltage Uc(V~)||Standard Discharge Current In(KA)||
Max Discharge Current
|Protection Level(KA~)||Response Time(ns)|
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.
Although a lower current is induced,the effect produced is equally or moredestructive, due to the greatersensitivity of electronic equipmentconnected to communications lines(telephone, Ethernet, R, etc.).
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.
External protection (ESE lightning rods and faradization).System for protection against direct lightningstrike.These capture the lightning within the protectedarea and lead it, in a controlled manner, safely to ground. Internal protection (power frequency overvoltage andsurge protection devices). Equipment designed to protectagainst the effects of overvoltages in equipment connected to the power supply systems and/or communications networks.Grounding systems (grounding and insulation monitoring).Systems that allow atmospheric dischargecurrents to be dispersed into the ground. The need formonitoring the grounding system.CUAJE offers a widerange of products for each of these systems. It alsodevelops custom products, provides advice and consultingservices and the best possible aftersales service.
First of all, you must determine what your power distribution system is like, whether it is TT, TN or IT system. After determining the power distribution system, you can choose the protection mode and wiring method of the lightning arrester to select the appropriate lightning arrester.
For example, TN-C uses 3P lightning protection device, TN-S uses 4P, TT uses 3P+N, etc.
Q: Can I get some samples?
A: Yes, Sample orders welcomed.
Q: Can I use my own Logo or design on goods?
A: Yes, Customized logo and design on mass production are available.
Q:What is the delivery time?
A: 3 days for samples, 7-15 days for mass production.
Q: What is the payment term?
A: T/T, L/C at sight, West union , Paypal, etc.