cctv lightning protectors

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For coaxial CCTV cables with BNC connectors use ESP CCTV/B.
For twisted pair CCTV lines use ESP CCTV/T.
Suitable for use on systems with either an earthed or an isolated screen .
Not suitable for use on broadcast, satellite or cable TV systems.

Camera telemetry or control lines should be protected with a suitable Lightning Barrier - click here for details. Protectors for the power supply to individual cameras are here and the mains supply to the control room here.

Application

Use these protectors on the video cable to outdoor CCTV cameras and central control and monitoring equipment. Typical uses include the protection of CCTV:

cameras
recorders
amplifiers
monitors

Features and benefits

Controls transient overvoltages to a low level to ensure maximum protection for your equipment.

Provides repeated protection, even in lightning intense environments.

Protection between all sets of conductors to shut all transient routes to equipment.

High bandwidth to prevent the degradation of high frequency signals.

Low in-line resistance to minimise unnecessary reductions in signal strength and maximise signalling distance.

CCTV typical installation

ESP CCTV/B

Very low reflection coefficient/VSWR ensure that the protector doesn't disrupt system operations.

Suitable for either earthed or isolated screen systems.

Sturdy, conductive ABS housing for 2 way shielding - preventing emissions and providing signals with immunity from external interference.

Easy installation.

Convenient holes for flat mounting on base or side.

Built-in DIN rail foot for easy installation on top hat DIN rail.

ESP CCTV/T has colour coded terminals for a quick and easy installation check - grey for the dirty (line) end and green for the clean end.

Substantial earth stud to enable effective earthing.

Integral earthing plate enables enhanced connection to earth via CME kit.

Straightforward and comprehensive installation instructions.

5 year warranty.

CCTV Brochure

Installation

Series conection for ESP CCTV/B or /T

Connect in series with the CCTV cable in a convenient place close to the equipment being protected. For outdoor CCTV cameras, protectors should be mounted in the junction box, or in a separate enclosure, close to the camera.

Protect central control and monitoring equipment inside the building by installing protectors on all incoming or outgoing lines, either: a) near where they enter or leave the building, or b) close to the equipment being protected (or actually within its control panel).

Camera protectors installed in a WBX 4/GS

A group of ESP CCTV/B protectors installed on a CME 8

Suitable accessories

When CCTV protectors are installed in groups, or alongside protectors for signal and mains power lines, these can be simultaneously mounted and earthed on a CME kit. A CME 4 will accommodate the video, telemetry and power protectors to a camera. If protectors cannot be incorporated within an existing panel or enclosure, WBX enclosures are available for up to 4,8 or 16 protectors and their associated CME kit. The WBX 4/GS is a secure IP66 enclosure suitable for a CME 4 and associated protectors.

Electrical specification

	ESP CCTV/B	ESP CCTV/T
Nominal voltageš (peak - peak)	1V	2V
Maximum working voltageł (peak)	6.5V	6.5V
Current rating (signal)	300mA	300mA
In-line resistance (ą 10%)	1ohm inserted in coax inner	1ohm per line
Bandwidth (-3dB 75ohm system)	>20MHz	>20MHz
Voltage standing wave ratio	<1.2	<1.2

1 Nominal working voltage (DC or AC peak) measured at <1ľA leakage.
2 Maximum working voltage (DC or AC peak) measured at 10mA leakage.

Transient specification

	ESP CCTV/B	ESP CCTV/T
Let through voltage (all conductors)š 5kV,10/700ľs test to: BS 6651:1999 Appendix C, Cat C-High ITU (formerly CCITT) IX K17	17V	17V
Maximum working voltageł (peak)	10kA	10kA

1 The maximum transient voltage let-through the protector throughout the test (+/-10%), line to line & line to earth. Screen to earth let-through voltage will be 600V, when protector is configured for use with non-earthed or isolated screen systems. Response time <10ns.
2 Tested with 8/20ľs waveshape to ITU (formely CCITT), BS 6651:1999 Appendix C.

Mechanical specification

	ESP CCTV/B	ESP CCTV/T
Temperature range	-25°C to +70°C	-25°C to +70°C
Connection type	Coaxial BNC	Screw terminal
Conductor size (stranded)	Not applicable	1.5mm˛
Earth connection	M6 stud	M6 stud
Weight -unit -packaged	0.08kg 0.09kg	0.08kg 0.09kg
Dimensions

CCTV Brochure