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Electronic Systems Protection furse

ESP 06D/BX, ESP 15D/BX, ESP 30D/BX, ESP, 50/BX Ready boxed protectors for twisted pair data communication, signal and telephone lines

Based on the ESP D Series and ESP TN, these protectors are ready-boxed to IP66 for use in damp or dirty environments.
Suitable for most twisted pair signalling applications.
Available for working voltages of up to 6, 15, 30 and 50 volts and telephone lines with a maximum working or ringing voltage of 190 volts.
For two wire lines use ESP 06D/BX, ESP 15D/BX, ESP 30D/BX, ESP 50D/BX or ESP TN/BX.
For four wire lines use ESP 06D/2BX, ESP 15D/2BX, ESP 30D/2BX, ESP 50D/2BX or ESP TN/2BX.
Supplied, as standard, with screw terminals ~ for IDC terminals order part code /I (eg ESP TN/BX/I) .

For installation in the equipment panel, protectors which are not boxed may be more suitable click here for details. If your system requires a protector with a very low resistance, higher current or higher bandwidth go here. Plug-in protectors for telephone lines can be found here.

Applications

Use these ready-boxed protectors on twisted pair lines in dirty or damp environments to protect:

process control equipment
telemetry and SCADA
modems
computer communications interfaces

Features and benefits

Low let-through voltage restricts the transient voltage reaching equipment to a safe level.

Protection between all lines closes all transient paths to equipment for complete protection.

Provides repeated protection in lightning intense environments.

Security alarm panel with ESP TN/BX installed

ESP 06D/BX Protector

Low in-line resistance minimises unnecessary reductions in signal strength.

Ready-boxed to IP66.

Available with screw terminals or with IDC terminals (by using /I suffix to part number).

Supplied ready for flat mounting.

Colour coded terminals for quick and easy installation check - grey for the dirty (line) end and green for clean.

Screen terminal enables easy connection of cable screen to earth .

Protector with IDC terminals

Substantial earth stud to enable effective earthing.

Straightforward, comprehensive installation instructions.

UK Oftel Approval NS/G/1235/W/100025.

5 year warranty.

ESP 30D/2BX
PDF

BX 2BX Brochure

Installation

Connect in series with the data communication, signal or telephone line either near where it enters/leaves the building or close to the equipment being protected. Either way it must be very close to the systems earth star point.

Install in series (in-line).

Electrical specification

 

ESP 06D/BX
ESP 06D/2BX
ESP 15D/BX
ESP 15D/2BX
ESP 30D/BX
ESP 30D/2BX
ESP 50D/BX
ESP 50D/2BX
ESP TN/BX
ESP TN/2BX
Nominal voltage¹
6V
15V
30V
50V
*
Max working voltage²
7.79V
19V
37.1V
58V
190V
Current rating
(signal)
300mA
300mA
300mA
300mA
300mA
In-line resistance
(per line ±10%)
9.4ohms
9.4ohms
9.4ohms
9.4ohms
4.4ohms
Bandwidth (-3dB 50ohm system)
800khz
2.5Mhz
4Mhz
6Mhz
>50Mhz

1 Nominal voltage (DC or AC peak) measured at <5µA (ESP 15D/BX, ESP 15D/2BX, ESP 30D/BX, ESP 30D/2BX, ESP 50D/BX, ESP 50D/2BX) and <200µA (ESP 06D/BX & ESP 06D/2BX).
2 Maximum working voltage (DC or AC peak) measured at <1mA leakage (ESP 15D/BX, ESP 15D/2BX, ESP 30D/BX, ESP 30D/2BX, ESP 50D/BX, ESP 50D/2BX), <10mA (ESP 06D/BX & ESP 06D/2BX) and <95µA (ESP TN/2BX).
* Post transient recovery voltage >80V.
Transient specification

 

ESP 06D/BX or 2BX
ESP 15D/BX or 2BX
ESP 30D/BX or 2BX
ESP 50D/BX or 2BX
ESP TN/BX or 2BX
Let through voltage
(all conductors)¹
5kV, 10/700µs test to:
BS6651:1999 App C, Cat C-High
ITU (formerly CCITT IX K17)
10.5V
23.8V
43.4V
74.9V
200V
Maximum surge current²
-Per signal wire
-Per pair
10kA
20kA
10kA
20kA
10kA
20kA
10kA
20kA
10kA
20kA

1 The maximum transient voltage let-through the protector throughout the test (+/-10%), line to line & line to earth. Response time <10ns.
2 Tested with 8/20µs waveshape to ITU (formely CCITT), BS 6651:1999 Appendix C.

Mechanical specification

 

ESP 06D/BX or 2BX
ESP 15D/BX or 2BX
ESP 30D/BX or 2BX
ESP 50D/BX or 2BX
ESP TN/BX or 2BX
Temperature range
0.25 to +70°C
0.25 to +70°C
0.25 to +70°C
0.25 to +70°C
0.25 to +70°C
Connection type
Screw terminal for IDC terminal use part number with/I
Conductor size (stranded)
1.5mm²
1.5mm²
1.5mm²
1.5mm²
1.5mm²
Earth connection
M6 stud
M6 stud
M6 stud
M6 stud
M6 stud
Cable glands
Accomodate 2.3 - 6.7mm diameter cable
Outer enclosure
PVC, IP66
PVC, IP66
PVC, IP66
PVC, IP66
PVC, IP66
Weight
-unit
-packaged
0.3kg
0.35kg
0.3kg
0.35kg
0.3kg
0.35kg
0.3kg
0.35kg
0.3kg
0.35kg

PDF

BX 2BX Brochure