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75Ohm Surge Protection Device SPD 20kA , Coaxial Cable Lightning Arrestor

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Guangdong Uchi Technology Co.,Ltd

75Ohm Surge Protection Device SPD 20kA , Coaxial Cable Lightning Arrestor

Country/Region	china
City & Province	dongguan
Categories	Other Security & Protection Products

Product Details

Coaxial Surge Protector Rf Antenna Arrestor , Surge Protective Device

Product Description

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.

Surges in telecom andsignalling networks

Surges tend to induce currents in allmetal conductors; not only are thepower lines affected, but so are allcables to a greater or lesser extent,depending on the distance to the focusof the surge.
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 connections
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.

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