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Furse, Wilford Road, Nottingham, NG2 1EB • Tel: +44 (0)115 964 3700 • Email:
enquiry@furse.com• Web:
www.furse.comTSC-0912 - 09.10.12
ESP SL 3-Wire Series
NEW
4
5
6
1
2
3
LightningBarrier
From line
LINE
CLEAN
Earth
To equipment
Furse
WilfordRoad,
Nottingham,
NG2 1EB,UK
Clean
Line
30V
37.8V
750mA
1.0Ω
10kA
43.5V
Nominalvoltage
Maxworkingvoltage,U
c
Currentrating
In-line resistance
Max surgecurrent
Let-throughvoltage,U
p
Very low let-through voltage (enhanced protection to BS EN 62305)
between all lines - Full Mode protection
Full mode design capable of handling partial lightning currents as well
as allowing continual operation of protected equipment
Repeated protection in lightning intense environments
Ultra slim 7 mm width ideal for compact protection of large numbers of
lines (e.g. process control installations)
Two stage removable protection module with simple quick release
mechanism allowing partial removal for easy line commissioning and
maintenance as well as full removal for protection replacement
Very low (1
Ω
) in-line resistance allows resistance critical applications
(e.g. alarm loops) to be protected
High (500 mA) maximum running current
High bandwidth enables higher frequency (high traffic or bit rate) data
communications
Strong, flame retardant, polycarbonate housing
Built-in innovative DIN rail foot with locking feature for simple
positioning and clip-on mounting to top hat DIN rails
4 mm
2
terminals allow for larger cross section wiring, stranded wires
terminated with ferrules or fitting two wires into a single terminal
Convenient earthing through DIN foot and/or earth terminal
Features and benefits
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
B
to protect against
flashover (typically the service entrance location) through to LPZ 3
to protect sensitive electronic equipment.
Replacement modules
ESP SLXX/3W/M
Standard module replacement
where XX is voltage rating (06,
15, 30, 50 or 110)
ESP SL/3W/B
Base replacement
For suitable enclosures for the
ESP SL 3-wire Series, please
contact us.
Accessories
Connect in series with the data
communication or signal line
either near where it enters or
leaves the building or close to the
equipment being protected (e.g.
within its 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.
Installation
Use these protectors for 3-wire
systems where installation space is
at a premium and large numbers
of lines require protection (e.g.
process control, high speed digital
communication equipment or
systems with long signal lines).
Application
500 mA