Page 570 - Din prodcuts 2020

5/126 ELECTRICAL INSTALL ATION SOLUTIONS FOR BUILDINGS 2CHC 420 001 C0201

—
Protection and safety
Data & signal protection
OVR TN, TNQ & SL TN Series

5

Combined Category D, C, B tested protector (to BS EN 61643) specifically
designed for telecommunications applications in accordance with Telcordia
and ANSI standards (see Application Note OVR AN005). For use at boundaries
up to LPZ 0 to protect against flashover (typically the service entrance location)
through to LPZ 3. Available as standard OVR TN format, or compact
OVR TNQ and Slim Line OVR SL TN versions for installations where a high
number of lines require protection.

Features & benefits
• Very low let-through voltage (enhanced protection to • OVR TN can be flat mounted on base or side
IEC/BS EN 62305) between all lines - Full Mode protection • OVR TN and OVR TNQ have colour coded terminals for
• Full Mode design capable of handling partial lightning quick and easy installation check
currents as well as allowing continual operation of • OVR SL TN has ultra slim 7 mm width ideal for compact
protected equipment protection of large numbers of lines (e.g. process control
• Repeated protection in lightning intense environments installations)
• 20 MHz bandwidth greatly exceeds VDSL2+ • OVR SL TN includes two stage removable protection
(50Mbps ~ 7MHz) maximum speeds module with simple quick release mechanism allowing
• Low in-line resistance minimizes reductions in signal partial removal for easy line commissioning and
strength maintenance as well as full removal for protection
• Built-in DIN rail foot for simple mounting to top hat DIN rails replacement
• Convenient earthing through DIN foot and/or earth • OVR SL TN includes optional LED status indication
terminal (add L suffix to part number - i.e. OVR SL TNL)

Application Accessories
Replacement module for OVR SL TN: If protectors cannot be incorporated
Connect in series with the signal line either near where it OVR SLTN/M within an existing panel or enclosure,
enters or leaves the building or close to the equipment being Standard module replacement OVR WBX enclosures are available
for up to 4, 8, 16 or 32 protectors
protected ensuring it is very close to the system’s earth star Combined Mounting/Earthing kits for and their associated OVR CME kit.
point. Install protectors either within an existing OVR RS485:
OVR CME 4 For up to 4 x OVR TN Weatherproof enclosure:
cabinet/cubicle or in a separate enclosure. OVR CME 8 For up to 8 x OVR TN OVR WBX SLQ (OVR SLTN and OVR TNQ)
OVR CME 16 For up to 16 x OVR TN
OVR CME 32 For up to 32 x OVR TN

OVR TN installed in series OVR SL TN installed in series OVR TNQ installed in series (in-line)
DIRTY CLEAN LINE CLEAN DIRTY CLEAN
LINE Lightning Barrier CLEAN
Nominal voltage 30V
Max working voltage, U c 36.7V
OVR TN 1 Current rating 750mA 1.0Ω 20kA 63V 3
In-line resistance
Max surge current
OVR TN
Let-through voltage, U p
From To S Furse Wilford Road, S OVR TNQ
Nottingham,
NG2 1EB, UK
line equipment
Earth 2 4
From To
line Earth equipment
To equipment
From line To equipment
From line
Earth
Earth
NOTE: The OVR KT Series is also available for telecommunications application using LSA-PLUS disconnection modules.
Plug-in solutions are also available for RJ11 connections (see OVR TN RJ11 Series).