Page 548 - Din prodcuts 2020

5/104 ELECTRICAL INSTALL ATION SOLUTIONS FOR BUILDINGS 2CHC 420 001 C0201

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Protection and safety
Data & signal protection
OVR SL Series

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Combined Category D, C, B tested protector (to BS EN 61643) suitable for
twisted pair signalling applications which require either a lower in-line
resistance, an increased current and/or higher bandwidth. Also suitable for
DC power applications less than 0.75 Amps. Available for working voltages of up
to 6, 15, 30, 50 and 110 Volts. 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 • High (750 mA) maximum running current
IEC/BS EN 62305) between all lines - Full Mode protection • High bandwidth enables higher frequency (high traffic or
• Full Mode design capable of handling partial lightning bit rate) data communications
currents as well as allowing continual operation of • Screen terminal enables easy connection of cable screen
protected equipment to earth
• Repeated protection in lightning intense environments • Suitable for earthed or isolated screen systems - add/I
• Ultra slim 7 mm width ideal for compact protection of suffix to part number for versions that require isolated
large numbers of lines (e.g. process control installations) screens - e.g. OVR SL30/I
• Optional LED status indication versions available for low • Built-in innovative DIN rail foot with locking feature for
current DC power applications - add L suffix to part simple positioning and clip-on mounting to top hat DIN rails
2
number - e.g. OVR SL30L • 4 mm terminals allow for larger cross section wiring,
• Two stage removable protection module with simple quick stranded wires terminated with ferrules or fitting two
release mechanism allowing partial removal for easy line wires into a single terminal
commissioning and maintenance as well as full removal for • Convenient earthing through DIN foot and/or earth terminal
protection replacement • Very low (1 Ω) in-line resistance allows resistance critical
• Strong, flame retardant, polycarbonate housing applications (e.g. alarm loops) to be protected

Application Installation
Use these protectors where installation space is at Connect in series with the data communication or signal
a premium and large numbers of lines require protection line either near where it enters or leaves the building or
(e.g. process control, high speed digital communication close to the equipment being protected (e.g. within its
equipment or systems with long signal lines). control panel).
Either way, it must be very close to the system’s earth
star point. Install protectors either within an existing
cabinet/cubicle or in a separate enclosure.

Accessories LINE Surge Protective Device CLEAN
7TCA085400R0366
Replacement modules: OVR SL/I/B Nominal voltage 30V
Max working voltage, U c 36.7V
Current rating 750mA 1. 1.0Ω 0 Ω
In-line resistance
OVR SLXX/M Base replacement with isolated 1 Max surge current 20kA 63V 3
Let-through voltage, U p
Standard module replacement where XX screen from earth S Line Wilford Road, Clean S
Nottingham,
NG2 1EB, UK
is voltage rating (06, 15, 30, 50 or 110)
OVR SLXXL/M Weatherproof enclosure: 2 4
LED module replacement where OVR WBX SLQ
XX is voltage rating, as above
OVR SL/B
Base replacement (common for From line To equipment
standard and LED modules)
Earth
NOTE: The OVR SL ‘Slim Line’ Series is also available for protection of 3-wire, RS 485 and RTD applications (OVR SL/3W, OVR SL RS485 & OVR SL RTD).
The OVR SL X Series has approvals for use in hazardous areas. For telecommunication applications use OVR SLTN Series.