Electrical Type 2 Surge Protector 275V Imax 40KA For Low Voltage
|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:||Power Surge Protector||Color:||White|
|In:||20kA||Time Of Response:||25ns|
|Protection Rating:||IP 20||CertificationCE,CQC:||CE / CQC / SGS|
|Function:||Lightning Protection For Low Voltage|
275V electrical surge protection devices,
40ka Type 2 Surge Protector,
40ka Type 2 Surge Protector
Power Type 2 Surge Protector , Lightning Protection for Low Voltage
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|
- High performance varistor with thermal disconnection tripping device.
- Protection class: Type 2,Class II.
- Pole number: 4P.
- The core parts are metal oxide vristor components with high discharge capacity.
- Low residual voltage and quick response.
- With remote signaling contact for control device.
- Fault indication via red mark in the inspection window.
- Protection mode: L/N-PE.
● Protecting low-voltage consumers' installations against indirect lightning discharges.
● surge areeare used to guard sensitive equipments from voltage spike.
● For using in the lightning protection zones concept at boundary 1-2.
Installation requirements for power supply lightning protection products
a. The power lightning protection product has a parallel installation method to the ground. When parallel installation is adopted, the length of the wire connecting the lightning protection product must be less than 0.5m.
b. There are also series installations for power supply lightning protection products, but the series installation is prone to temperature rise problems and potential safety hazards. Generally, the first-level power supply lightning protection products are not recommended to be installed in series.
c. The fuse (fuse) or circuit breaker (circuit breaker) must be installed in series before the lightning protection product of the power supply to prevent possible short-circuit to ground when the lightning protection product fails.
d. Requirements for connecting wires of power supply lightning protection products:
|Protection level||Types of SPD||Conductor cross-sectional area (mm square)|
|Connect the phase wires||Ground wire|
|First level||Voltage switch type||16||25|
Necessity of lightning protection detection:
1.lightning protection detection surge protector can resist lightning disasters and ensure life safety.
The damage of lightning to buildings can only be avoided through lightning protection devices. Lightning directly hits buildings or equipment exposed to the air, and various overhead metal cables will cause equipment damage, and even more serious fires will cause people to bring damage to the equipment. Unnecessary property damage. Professional lightning protection testing companies can do professional lightning protection. The lightning protection testing is to check whether the installed lightning protection devices or structural equipment are reasonable, whether the protection conditions meet the requirements, and whether the electrical safety meets the standards. If it fails to meet the requirements, the lightning protection inspection company will promptly put forward corresponding rectification opinions;
2.Lightning protection device test results meet national standards.
The detection results of lightning protection devices of well-known domestic lightning protection inspection companies are based on the standards of the national professional departments, and the lightning protection inspection companies also use the relevant lightning protection technical standards and standards of the country and various departments as the measurement index. Professional lightning protection testing companies also have relatively more testing content. A series of lightning protection testing software and equipment involved in the detection process can objectively make standard judgments on lightning protection work, so the accuracy of the data results is also higher;
How to choose a suitable power arrester:
When choosing lightning arresters to protect different types of equipment in an area, the following factors should be considered comprehensively:
●The intensity of thunderstorms in the area, the number of days of thunderstorms and the parameters of the maximum discharge current and the probability of occurrence;
●The value of the protected equipment;
●The level of impact resistance of the protected equipment;
●The social importance of protected equipment;
●Determine the power surge arrester with different protection voltage UP and discharge current;
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)|
Key parameters of power surge protector:
●Maximum continuous withstand voltage Uc (rms):
means that the arrester can work continuously at this voltage value without affecting its parameters as the arrester. Uc is non-linearly proportional to the protection voltage Up.
● Maximum discharge current Imax:
Use 8/20μs wave surge arrester once, the maximum discharge current that can withstand. It can be selected according to the local thunderstorm intensity Ng (or the average annual thunderstorm day Td) and environmental factors.
●Residual voltage Ur and protection voltage Up
Residual voltage Ur: Refers to the residual voltage value under the rated discharge current In.
Protection voltage Up: The protection voltage Up is related to the Uc voltage and Ur. According to the characteristics of the zinc oxide varistor, when the Uc value of the selected varistor is high, its Up and Ur will increase accordingly, such as when the discharge current is 10kA (8/20μs):
Uc=275V Ur (10kA, 8/20μs) ≤1200V
Uc=385V Ur (10kA, 8/20μs) ≤1600V
Uc=440V Ur (10kA, 8/20μs) ≤1800V