134784 / 8125612300
2013-01-18·BA00·III·en·05
Installation
11
Control Panels and Distribution Systems
8125/5, 8125/8
Terminal block in the Ex “e” enclosure
8.2 External wiring
Guide the connecting cable together with the complete external insulation through the
cable entry into the enclosure.
Please ensure that the cable diameter and the terminal cross section on the cable
entry are identical.
Tighten the hexagon nut of the cable guide. Make sure that the tightness of the
enclosure and the strain relief protection of the connection points is guaranteed.
To determine the tightening torques, please consult the operating instructions of the
individual components.
Lay the connecting cables in the terminal compartment so that:
The minimum permissible bending radii for the respective conductor cross section are
achieved.
Mechanical damage of the conductor isolation rubbing against sharp-edged or
movable metal parts is avoided.
Pay attention to the test certificate of the terminals.
Only one conductor may be connected to each terminal. Terminal bridging is
only permitted if original flameproof accessories have been used.
Equip with the necessary partitions as needed.
For additional protection against splaying use crimped terminal sleeves or
cable lugs.
The cross section of the anti-splay protection must meet the conductor cross
section.
WARNING
Incorrect installation!
Risk of severe injuries.
Please observe the thread sizes for the cable entries specified in the
equipment documentation.
The connecting cable should comply with relevant regulations and have
the required cross-section. The diameter must be identical to the data on
the cable entry.
Ensure that the maximum permissible conductor temperatures are not
exceeded by suitable selection of cables and means of running them.
The permissible ambient temperature around the intrinsically safe devices
and components must not be exceeded.
When stripping insulation, it must be ensured that the conductor insulation
reaches right up to the terminals.
The conductor itself must not be damaged when removing the insulation.
Summary of Contents for 8125/5
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