Page 558 - Din prodcuts 2020

5/114 ELECTRICAL INSTALL ATION SOLUTIONS FOR BUILDINGS 2CHC 420 001 C0201

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Protection and safety
Data & signal protection
OVR SL 3-Wire Series

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Combined Category D, C, B tested protector (to BS EN 61643) suitable for 3-wire
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 0.5 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 (500 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 • Strong, flame retardant, polycarbonate housing
protected equipment • Built-in innovative DIN rail foot with locking feature for
• Repeated protection in lightning intense environments simple positioning and clip-on mounting to top hat DIN
• Ultra slim 7 mm width ideal for compact protection of rails
2
large numbers of lines (e.g. process control installations) • 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
protection replacement terminal
• Very low (1 Ω) in-line resistance allows resistance critical
applications (e.g. alarm loops) to be protected

Application Installation
Use these protectors for 3-wire systems where installation Connect in series with the data communication or signal line
space is at a premium and large numbers of lines require either near where it enters or leaves the building or close to
protection (e.g. process control, high speed digital the equipment being protected (e.g. within its control
communication equipment or systems with long signal panel). Either way, it must be very close to the system’s
lines). earth star point. Install protectors either within an existing
cabinet/cubicle or in a separate enclosure.

LINE CLEAN
CLEAN
LINE
Accessories Lightning Barrier
Nominal voltage 30V
Max working voltage, U c 36.7V 750mA
Current rating
Replacement modules: OVR WBX SLQ 1 In-line resistance 20kA 1.0Ω 63V 3
Max surge current
Let-through voltage, U p
OVR SLXX/3W/M Furse Wilford Road,
Nottingham,
NG2 1EB, UK
Standard module replacement S S
where XX is voltage rating 2 4
(06, 15, 30, 50 or 110)
OVR SL/3W/B
Base replacement
Weatherproof enclosure: From line To equipment
To equipment
From line
Earth
Earth
NOTE: The OVR SL ‘Slim Line’ Series is also available for protection of 2-wire systems up to 110 V, RS 485, RTD and telecommunication applications
(OVR SL Series, OVR SL RS485, OVR SL RTD and OVR SL TN). The OVR SL X Series has approvals for use in hazardous areas.