Eaton Crouse-Hinds GHG511 Series Operating Instructions Manual

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Eaton Crouse-Hinds GHG511 Series Operating Instructions Manual Manual pdf 11 page image

11The user alone is responsible for the appropriate use of this plug andsocket system in consideration of the basic conditions existing at theplant (see technical data).After a short in the circuit, the functioning of the plug and socketsystem and of the plugs has to be checked.Since the switch contacts can no more be checked because of theflameproof enclosure, the complete switch insert (flange socket) willhave to be replaced after repeated short circuits.6 InstallationFor the mounting and operation, the respective national regulations aswell as the general rules of engineering will have to be observed(IEC/EN 60079-14).The improper installation and operation of plugs and sockets may result inthe invalidation of the guarantee.6.1 MountingThe wall sockets can be mounted without opening their enclosure.XATEX - IEC If an ambient temperature between -40 °C and -55 °C is to be expectedwhen used as intended, the wall sockets may only be installed in aprotected location. The impact energy shall not exceed 4 joules.In case the wall sockets are mounted directly onto the wall, they may restevenly only at the respective fastening points. The chosen screw shallmatch the fastening hole (see dimensional drawing) and it must notdamage the hole (e. g. use of a washer).The device shall be fastened diagonally with at least 2 screws.The wall sockets, flange sockets and couplers shall be mounted sothat the plug hole points downwards (see page 18, fig. 2).The wall sockets can be clipped onto the Cooper Crouse-Hinds mountingplate size 4. They are laterally pushed into the guiding groove on theleft-hand side of the mounting plate.The respective mounting instructions will have to be observed.BBBBA AAAFastening point A Fastening point B16 A socket 3-pol. 16 A socket 4,5-pol.6.2 Opening the device/ Electrical connectionBefore opening the apparatus, ensure that it has been isolated fromthe voltage supply, or take appropriate protective measures.The electrical connection of the device may only be carried out byskilled staff (IEC/EN 60079-14).The conductors shall be connected with special care in order tomaintain the explosion category.The insulation of the conductors shall reach up to the terminal. Theconductor itself shall not be damaged.The connectible min. and max. conductor cross-sections shall beobserved (see technical data).Taking into account the respective regulations, the properly baredconductors of the cables shall be connected.The plug insert (page 18, item 2, fig. 4) is removed from the pin bushing(page 18, item 1, fig. 4), after the fastening screws (item 3, fig. 3) havebeen unscrewed. Thereafter, the plug insert can be connected to theconnections of the plug pins (see page 18, view 1, fig. 4).Attention: When the fastening screws (page 18, item 3, fig. 3) get lost,they will have to be replaced by similar screws or to be ordereddirectly from the manufacturer.Assembly is made in inverse order, after the cable has been connected.To connect the coupler, unscrew and remove the 4 fixing screws of theflange from the body sleeve. The coupler insert can then be connected tothe respective contacts.When reassembling, the flange screws shall be screwed into the bodysleeve with a maximum test torque of 1 Nm.All screws and / or nuts of the supply terminals, also of those remainingvacant, shall be tightened down.Excessive tightening may affect or damage the connection.The supply terminals are designed for the connection of copper conduc-tors.If multi- or fine-wire connecting cables are used, the wire ends will haveto be handled in acc. with the applicable national and international rules(e.g. use of sleeves for strands).6.3 Cable entries (KLE); blanking plugs6.3.1 SocketGenerally, only certified cable entries and blanking plugs arepermitted for use. Flexible cables shall be used with trumpet-shapedcable glands or other suitable entries with additional pull-relief.When using cable entries with a lower IP protection than that whichapplies to the device (see technical data), the IP protection of the wholedevice will be reduced. The mounting directives applicable to the cableentries used shall be observed.Unused holes shall be closed with a certified blanking plug in order toestablish the minimum protection category. Care has to be taken thatwhen fitting the cable entries, sealing inserts appropriate to the cablediameter are used.In case of sealing inserts that are cut out, it shall be ensured that theinsert is properly adapted to the cable diameter.In order to ensure the required minimum protection category, the cableglands are to be tightened down.Explosion protected plug and socket system 16 A,3-pole, 4-pole, 5-pole, GHG 511