Page 578 - Din prodcuts 2020

5/134 ELECTRICAL INSTALL ATION SOLUTIONS FOR BUILDINGS 2CHC 420 001 C0201

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Protection and safety
Specific systems protection
OVR CCTV Series

5

Combined Category D, C, B tested protector (to BS EN 61643) suitable for
coaxial CCTV cables with BNC connectors (OVR CCTV/B) or twisted pair CCTV
lines (OVR CCTV/T) on systems with either an earthed or an isolated screen.
Not suitable for use on broadcast, satellite or cable TV systems. For use at
boundaries up to LPZ 0 to protect against flashover (typically the service
entrance location) through to LPZ 3 to protect sensitive electronic equipment.

Features & benefits
• Very low let-through voltage (enhanced protection to • Sturdy, conductive ABS housing for 2 way shielding -
IEC/BS EN 62305) between all lines - Full Mode protection preventing emissions & providing signals with immunity
• Full Mode design capable of handling partial lightning from external interference
currents as well as allowing continual operation of • Convenient holes for flat mounting on base or side
protected equipment • Built-in DIN rail foot for easy installation on a top hat
• Repeated protection in lightning intense environments DIN rail
• 100 MHz bandwidth prevents the degradation of high • OVR CCTV/T has colour coded terminals for a quick and
frequency signals easy installation check - grey for the dirty (line) end and
• Low in-line resistance to minimize unnecessary reductions green for the clean end
in signal strength and maximizes signalling distance • Substantial earth stud to enable effective earthing
• Very low reflection coefficient/VSWR ensure that the • Integral earthing plate for enhanced connection to earth
protector doesn’t disrupt system operations via OVR CME kit
• Suitable for either earthed or isolated screen systems

Application Installation
Use these protectors on the video cable to outdoor CCTV Connect in series with the CCTV cable in a convenient place
cameras and central control and monitoring equipment. 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).

Accessories
When CCTV protectors are installed in groups, Series connection for OVR CCTV/B Series connection for OVR CCTV/T
or alongside protectors for signal and mains
power lines, these can be mounted and earthed
simultaneously on a OVR CME kit. An OVR CME 4 DIRTY CLEAN DIRTY CLEAN
will accommodate the video, telemetry and power
protectors to a camera. If protectors cannot be
incorporated within an existing panel or enclosure,
OVR WBX enclosures are available for up to 4, 8, From line To equipment From line To
16 or 32 protectors and their associated OVR CME equipment
kit. The OVR WBX 4/GS is a secure IP66 enclosure Earth Earth
suitable for a OVR CME 4 and associated protectors.

NOTE: Camera telemetry or control lines should be protected with a suitable Lightning Barrier from the OVR D or E Series.
Protectors for the power supply to individual cameras (e.g. OVR 240-16A) and the mains supply to the control room are available.
For coaxial RF (OVR RF Series) cable protectors and CATV systems (OVR CATV/F) are also available.