1
S
2
3
S
4
LightningBarrier
From line
LINE
CLEAN
Earth
To equipment
Furse
Wilford Road,
Nottingham,
NG21EB,UK
Clean
Line
Nominalvoltage
Maxworking voltage,U
c
Current rating
In-line resistance
Maxsurge current
Let-throughvoltage,U
p
30V
36.7V
750mA
1.0
Ω
20kA
63V
Furse, Wilford Road, Nottingham, NG2 1EB • Tel: +44 (0)115 964 3700 • Email:
enquiry@furse.com• Web:
www.furse.comESP SL Series
NEW
TSC-0912 - 09.10.12
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)
Optional LED status indication versions available for low current DC
power applications - add L suffix to part number - e.g. ESP SL30L
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 (750 mA) maximum running current
High bandwidth enables higher frequency (high traffic or bit rate)
data communications
Screen terminal enables easy connection of cable screen to earth
Suitable for earthed or isolated screen systems - add /I suffix to part
number for versions that require isolated screens - e.g. ESP SL30/I
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 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
B
to protect
against flashover (typically the service entrance location) through
to LPZ 3 to protect sensitive electronic equipment.
Replacement modules
ESP SLXX/M
Standard module replacement
where XX is voltage rating (06,
15, 30, 50 or 110)
ESP SLXXL/M
LED module replacement where
XX is voltage rating, as above
ESP SL/B
Base replacement (common for
standard and LED modules)
ESP SL/I/B
Base replacement with isolated
screen from earth
For suitable enclosures for the
ESP SL 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 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




