Page 550 - Din prodcuts 2020

5/106 ELECTRICAL INSTALL ATION SOLUTIONS FOR BUILDINGS 2CHC 420 001 C0201

—
Protection and safety
Data & signal protection
OVR SL X Series

5

Combined Category D, C, B tested protector (to BS EN 61643) suitable for
twisted pair signalling applications within hazardous environments (ATEX/
IECEx approved). Available for working voltages of up to 15 and 30 Volts. For
use at boundaries up to LPZ 0 to protect against flashover through to LPZ 3 to
protect sensitive electronic equipment.

Features & benefits
• Approved for use in hazardous environments for the • High (750 mA) maximum running current
protection of Intrinsically Safe circuits (Classification: II • High bandwidth enables higher frequency (high traffic or
2(1)G, Ex ia (ia Ga) IIC T4 Gb) bit rate) data communications
• Very low let-through voltage (enhanced protection to • Screen terminal enables easy connection of cable screen
IEC/BS EN 62305) between all lines - Full Mode protection to earth
• Full Mode design capable of handling partial lightning • Suitable for earthed or isolated screen systems - add/I
currents as well as allowing continual operation of suffix to part number for versions that require isolated
protected equipment screens
• Repeated protection in lightning intense environments • Built-in innovative DIN rail foot with locking feature for
• Ultra slim 7 mm width ideal for compact protection of simple positioning and clip-on mounting to top hat
large numbers of lines (e.g. process control installations) DIN rails
• Optional LED status indication versions available for low • 4 mm terminals allow for larger cross section wiring,
2
current DC power applications stranded wires terminated with ferrules or fitting two
• Negligible self-capacitance and self-inductance wires into a single terminal
offering minimal interference when protecting Intrinsically • Approval references for OVR SL X Series: IECEx SIR
Safe circuits 10.0030X, Sira 10ATEX2063X
• Very low (1 Ω) in-line resistance allows resistance critical
applications (e.g. alarm loops) to be protected

Application Installation
Use these protectors in hazardous environments where in- Connect in series with the data communication or signal
stallation space is at a premium and large numbers of lines line either near where it enters or leaves the building or close
require protection (e.g. process control, 4-20 mA loops, to the equipment being protected (e.g. within its control
fire and gas detectors and shut-down systems). Suitable panel). Either way, it must be very close to the system’s
for high speed digital communication equipment or systems earth star point. Install protectors either within an existing
with long signal lines. See Application Note OVR AN013. cabinet/cubicle or in a separate enclosure.

Accessories LINE Surge Protective Device CLEAN
7TCA085400R0397
Replacement modules: OVR SLX/I/B
Nominal voltage
Max working voltage, U c 36.7V 750mA 30V 1.0Ω 1. 0 Ω
Current rating
OVR SL15X/M, OVR SL30X/M Base replacement with 1 Max surge current 20kA 63V 3
In-line resistance
Let-through voltage, U p
Standard module replacement for 15 isolated screen from earth Line Wilford Road, Clean
Nottingham,
NG2 1EB, UK
and 30 V protectors respectively S S
OVR SL15XL/M, OVR SL30XL/M Weatherproof enclosure: 2 4
LED module replacement for 15 OVR WBX SLQ
and 30 V protectors respectively
OVR SLX/B Base replacement (common
for standard and LED modules)
From line To equipment
Earth
NOTE: Use the standard OVR SL ‘Slim Line’ Series for non-hazardous areas. The OVR SL Series is also available for protection
of 3-wire, RS 485, RTD & telecommunication applications (OVR SL/3W, OVR SL RS485, OVR SL RTD & OVR SL TN).