Cable Connections - Pfannenberg BExBG10D-P Bedienungsanleitung

8) Power Supply Selection
It is important that a suitable power supply is used to run the
equipment. The power supply selected must have the neces-
sary capacity to provide the input current to all of the units.
The following table shows the input current taken by the var-
ious beacons and shows the maximum voltage at which the
beacons can be operated:
Nominal I/P
Model No.
Voltage
BExBG10D-P 12Vdc
BExBG10D-P 24Vdc
BExBG10D-P 48Vdc
BExBG10D-P 115V ac
BExBG10D-P 230Vac
BExBG15D-P 24Vdc
BExBG15D-P 48Vdc
BExBG15D-P 115V ac
BExBG15D-P 230Vac
The input current will vary according to the voltage input level.
The current levels shown above are for nominal input volt-
age.
9) Selection of Cable, Cable Glands and
Blanking elements
When selecting the cable size, consideration must be given
to the input current that each unit draws (see table above),
the number of beacons on the line and the length of the cable
runs. The cable size selected must have the necessary ca-
pacity to provide the input current to all of the beacons con-
nected to the line.
For ambient temperatures over +40ºC the cable entry tem-
perature may exceed +70ºC and therefore suitable heat re-
sisting cables and cable glands must be used, with a rated
service temperature of at least 110ºC
The BExBG10D-P and BExBG15D-P beacons have dual ca-
ble gland entries which have an M20 x1.5 thread. To maintain
the ingress protection rating and mode of protection, the ca-
ble entries must be fitted with suitably rated ATEX certified
cable glands and/or suitably rated ATEX certified blanking
devices during installation according to EN / IEC60079-14.
If a high IP (Ingress Protection) rating is required then a suit-
able sealing washer must be fitted under the cable glands or
blanking plugs.
For use in explosive dust atmospheres, a minimum ingress
protection rating of IP6X must be maintained.
The BEx beacon range can be supplied with the following
types of adapters:
M20 to ½" NPT
M20 to ¾" NPT
M20 to M25
It is important to note that stopping plugs cannot be fitted onto
adapters, only directly onto the M20 entries.
Any other adapters used must be suitably rated and ATEX
certified adapters.
Pfannenberg GmbH · Werner Witt-Straße 1 · D-21035 Hamburg · Tel.: 040/7 34 12-0 · www.pfannenberg.com
03/2022
Input Cur-
Max. I/P Volts
rent
1.45A 14V
660mA 28V
340mA 54V
250mA 126V
110mA 253V
860mA 28V
480mA 54V
360mA 126V
170mA 253V
10) Earthing
Both AC and DC beacon units must be connected to an earth.
The units are provided with internal and external earthing ter-
minals which are both located on the terminal chamber sec-
tion of the unit.
Internal
Earthing
2-off M20
Cable
Entries
Fig 3. Internal View of Cover
When using the internal earth terminal ensure that the stain-
less steel M4 flat washer is between the incoming earth wire
and the enclosure.
Internal earthing connections should be made to the Internal
Earth terminal in the base of the housing using a ring crimp
terminal to secure the earth conductor under the earth clamp.
The earth conductor should be at least equal in size and rat-
ing to the incoming power conductors. Tighten M4 Earth
screw to 1Nm.
External earthing connections should be made to the M5
earth stud, using a ring crimp terminal to secure the earth
conductor to the earth stud. The external earth conductor
should be at least 4mm² in size
ternal grounding terminal so that the stud does not become
loose and lay the ground wire so that it is not caught by twist-
ing and sagging.

11) Cable Connections

Electrical connections are to be made into the terminal blocks
on the PCBA located in the flameproof enclosure. See sec-
tion 7 of this manual for access to the flameproof enclosure.
Wires having a cross sectional area between 0.5 mm² to
2.5mm² can be connected to each terminal way. If an input
and output wire is required the 2-off Live/Neutral or +/- termi-
nals can be used. If fitting 2-off wires to one terminal way the
sum of the 2-off wires must be a maximum cross sectional
area of 2.5mm². Strip wires to 8mm. Wires may also be fitted
using ferrules. Terminal screws need to be tightened down
with a tightening torque of 0.45 Nm / 5 Lb-in. When connect-
ing wires to the terminals great care should be taken to dress
the wires so that when the cover is inserted into the chamber
the wires do not exert excess pressure on the terminal
blocks. This is particularly important when using cables with
large cross sectional areas such as 2.5mm².
Page 3 / 5
Internal
Bonding
Wire
Terminal
External Earthing
Please firmly tighten the ex-
.
30017-016-1e