Samson 3725 - Electrical connections

EB 8394 EN 45
Mounting and start-up
5.8 Electrical connections
Risk of the formation of an explosive atmosphere.
For installation in hazardous areas, observe the relevant standards that apply in the country
of use.
Standard applicable in Germany: EN60079-14: 2008 (VDE0165, Part1) Explosive Atmo-
spheres– Electrical Installations Design, Selection and Erection.
Incorrect electrical connection will render the explosion protection unsafe.
− Adhere to the terminal assignment.
− Do not undo the enameled screws in or on the housing.
− Do not exceed the maximum permissible values specied in the EC type examination certif-
icates when interconnecting intrinsically safe electrical equipment (U
i
or U
0
, l
i
or I
0
, P
i
or P
0
,
C
i
or C
0
and L
i
or L
0
).
DANGER
!
WARNING
!
Selecting cables and wires
Î Observe clause12 of EN60079-14
(VDE0165, Part1) for installation of the
intrinsically safe circuits.
Î Clause12.2.2.7 applies when running
multi-core cables and wires with more
than one intrinsically safe circuit.
Î Radial thickness of the insulation of a
conductor for common insulating materi-
als (e.g. polyethylene): minimum
0.2mm.
Î Diameter of an individual wire in a
ne-stranded conductor: minimum
0.1mm.
Î Strip 8mm insulation off the wire ends.
Î Protect the conductor ends against splic-
ing, e.g. by using wire-end ferrules.
Î Cable glands available:
See Table7 on page19