75Ohm Impedance F Type Date Line Surge Protection Device , Surge Arrestor
Risk of voltage surges
Electrical and electronic equipment is indispensablein the daily activities of today's businesses and
individuals. Such devices are connected to theelectricity grid, often exchanging data and signals
through communication lines and are usually sensitive
to disturbances.These interconnecting networksprovide a propagation path for overvoltages.
Protection against lightning and overvoltages not onlyensures the safety of people, goods and equipment,but also ensures continuity of installation
services.Overvoltage protection extends the life of theequipment by more than 20%, which significantlyreduces the volume of electronic waste. It also
reduces the power consumption of the installations,all of which translates into cost savings and
environmental sustainability.
OBVW
F type date line surge protection device OBVW is the series of devices for discharging transient overvoltages induced in coaxial lines. In accordance with IEC 61643-21. Coaxial format.
Suitable for the protection of radiofrequency transmission and reception equipment. By their nature, they are highly exposed to induced transient overvoltages (surges) associated with meteorological activity.
For BNC, F, N, TNC connectors.
Ideal for the protection of transmission and reception systems such as TV and radio antennas, closed circuit TV (CCTV), alarms, etc.
Technical and Parameters
| | OBVW-
BNC/75C | OBVW-
BNC/50C | OBVW-
N/75C | OBVW-
N/50C | OBVW-
F/75C | OBVW-
F/50C |
| Maximum Continuous Operating Voltage Uc (~) | DC68V / AC130V / AC280V |
| Nominal Discharge Current In (8/20µs)kA | 10kA |
| Maximum discharge current Imax (8/20µs)kA | 20kA |
| Maximum peak power (W) | <300 |
| Interface | BNC | N | F |
| Voltage protection level (Up) | <600V |
| Bandwidth (MHz) | 0-3000 |
| Standing wave ratio, VSWR | ≤1.2 |
| Insertion Loss | ≤0.1db |
| Impedance(Ω) | 75Ω | 50Ω | 75Ω | 50Ω | 75Ω | 50Ω |
Advantage:
• Lower Prices
• Low Capacitance
• High Discharge Current
• Continuous and repeated protection in intense environment
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
•Medical equipment
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.
About SPD product
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 Imax(KA) | Protection Level(KA~) | Response Time(ns) |
| DGM1(2)-D5 | 220/380 | 275/320 385/420 | 5 | 10 | 1.2 | ≤25 |
| DGM1(2)-D10 | 10 | 2 | 1.6 |
| DGM1(2)-C20 | 20 | 40 | 1.8 |
| DGM13-B30 | 30 | 60 | .2.2 |
| DGM3(4)-B40 | 10 | 80 | 2.4 |
| DGM(4)-B60 | 60 | 100 | 2.8 |
| DGM-N-PE | 220/255 | 40/60 | 60/80 | 1.2 | ≤100 |
Application SPD:
• SPDs for CCTV is mainly used for supervisory control system, preventing product from lightning
strike and surge.
• Protect the video equipment effectively and ensure the image can display normally5.Inhibit the
overvoltage pulse issue fromthe transmission line on the camera effectively, Avoiding the video
surveillance equipment damage due to overvoltage pulse.
• Offer surge protection for almost any products application in power, instrumentations and controls,
network and data lines, coax and etc.
• For Radio Antennas, GPS Antennas, CATV, CCTV and Satellite TV.
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F Type Date Line Surge Protection Device SPD 75Ohm Impedance AC280V 20kA Images
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