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Total Solution to Earthing & Lightning Protection |
9AKK106354A3360
12
LPZ
RTD
0
A
3
RTDQ
0
A
3
SL RTD
0
B
3
Data & signal protection
ESP RS485, RS485Q & SL RS485 Series
NOTE:
The ESP SL ‘Slim Line’ Series is also available for protection of 3-wire and RTD applications (ESP SL/3W & ESP SL RTD). The ESP SL X Series has
approvals for use in hazardous areas.
Combined Category D, C, B tested protector (to BS EN 61643) specifically
designed for RS 485 and Fieldbus applications, such as Profibus DP.
For use at boundaries up to LPZ
0
(ESP RS485 & ESP RS485Q), or LPZ
0
(ESP SL RS485) protect against flashover (typically the service entrance
location) through to LPZ 3. Available as standard ESP RS485 format, or
compact ESP RS485Q and Slim Line ESP SL RS485 versions for installations
where a high number of lines require protection.
Application
Connect in series with the signal line either near where it
enters or leaves the building or close to the equipment being
protected ensuring it is very close to the system’s earth star
point. Install protectors either within an existing cabinet/
cubicle or in a separate enclosure.
Replacement module for ESP SL RS485:
ESP SLRS485/M
Standard module replacement
ESP SLRS485/B
Base replacement
Combined Mounting/Earthing kits for ESP
RS485:
CME 4
For up to 4 x ESP RS485
CME 8
For up to 8 x ESP RS485
CME 16
For up to 16 x ESP RS485
CME 32
For up to 32 x ESP RS485
Full product range order codes can be found on pages 17/8-17/9
ESPRS485
ESPRS485
ESP RS485 installed in series
DIRTY
CLEAN
From line
To equipment
Earth
1
S
2
3
S
4
LightningBarrier
From line
LINE
CLEAN
Earth
To equipment
Furse
Wilford Road,
Nottingham,
NG21EB,UK
Clean
Line
Nominal voltage
Maxworking voltage,U
c
Current rating
In-line resistance
Max surge current
Let-through voltage,U
p
30V
36.7V
750mA
1.0
Ω
20kA
63V
ESP SL RS485 installed in series
rom line
To equipment
LINE
CLEAN
Earth
DIRTY
CLEAN
ESP RS485Q installed in series (in-line)
From line
To
equipment
Earth
Features & benefits
–– Very low let-through voltage (enhanced protection to
IEC/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
–– 45 MHz bandwidth greatly exceeds 12 Mbps maximum
speeds
–– Low in-line resistance minimizes reductions in signal
strength
–– Suitable for earthed or isolated screen systems
–– Built-in DIN rail foot for simple mounting to top hat DIN rails
–– Convenient earthing through DIN foot and/or earth terminal
–– ESP RS485 can be flat mounted on base or side
–– ESP RS485 and ESP RS485Q have colour coded terminals
for quick and easy installation check
–– ESP SL RS485 has ultra slim 7 mm width ideal for compact
protection of large numbers of lines (e.g. process control
installations)
–– ESP SL RS485 includes 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
–– ESP SL RS485 includes optional LED status indication
–– Add L suffix to part number - i.e. ESP SL RS485L
Accessories