Terminal Fittings - Scame ZENITH-P Guía De Instalación, Uso Y Mantenimiento

ZENITH-P
3.2.2 Pad-Lockable
Figure - 3
The above figure, show how is connected the earth terminal , the screws M5 is soldered and the cable cable-lugs
• The secureness of connections its guaranteed by spring washer and lugs.
• When Padlock is used connect through its terminal screw to earth.

4. TERMINAL FITTINGS

Any listed ATEX / IECEx certified terminal "Ex eb", approved by SCAME, according to IEC / EN 60079-7 can be used. Terminals
shall be rail or internal plate mounted. Terminals must be installed in accordance with the operating instructions issued by
the respective manufacturer and in compliance with requirements for clearance/creepage, cross-connections and earthing.
All wiring must be carried out in accordance with the code of practice and installation standards in hazardous areas like IEC
/ EN 60079-14.
Use the correct size of tool and torque (see manufacturer documents) for tightening the terminal clamps (screwdriver or
spanner).
Creepage and clearance distances shall comply with IEC / EN 60079-7, current and maximum dissipated power shall not
exceed the maximum allowed.
The maximum number of terminals is determined by:
• The physical dimensions.
• The minimum clearance and creepage distances between the terminals and the enclosures walls (see figure 3 and table 5);
• The heating at the terminal points: the enclosure must be used respecting the maximum certified power dissipation related to
a given temperature class (see marking label).
• Maximum power dissipation indicated on the label.
Care must be taken to ensure that the size of the enclosure can accommodate the cable bending radius.
4.1 TERMINAL SERVICE TEMPERATURE
When terminals are installed within a:
• T6 enclosure they shall be rated for a minimum of +80°C.
• T5 enclosure they shall be rated for minimum of +95°C.
• T4 enclosure they shall be rated for minimum of +105°C
MP39690 17 ZP91043-2