Cooper Crouse-Hinds STB Mode D'emploi page 6

2 Safety instructions
The stainless steel terminal boxes
STB / NXT. are not suitable for
Zone 0 and Zone 20 hazardous
areas.
The temperature class and explosion
group marked on the terminal boxes have
to be observed.
The requirements of the EN 61241-0-1
regarding excessive dust deposits and
temperature to be considered from the
user.
Modifications to the terminal boxes or
changes of their design are not permitted.
They have to be used for their intended
purpose and in perfect and clean condition.
For replacement and repair only genuine
COOPER CROUSE-HINDS spare parts may
be used.
Repairs that affect the explosion
protection, may only be carried out by
COOPER CROUSE-HINDS or a qualified
electrician in compliance with the
respective national regulations.
Prior to taking the terminal boxes into
operation, they will have to be checked in
accordance with the instruction as per
section 6.
Before the initial operation, any foreign
matter will have to be removed from the
terminal boxes.
Observe the national safety rules and
regulations for prevention of accidents as
well as the safety instructions included in
these operating instructions and set in
italics the same as this text!
3 Conformity with standards
The apparat is conform to the standards
specified in the EC-Declaration of conformity.
It has been designed, manufactured and
tested according to the state of the art and to
DIN EN ISO 9001.
94/9 EC: Equipment and protective systems
intended for use in potentially explosive
atmospheres.
The terminal boxes also fulfil further
requirements such as those of directive on
electromagnetic compatibility (2004/108/EC).
6 6 6 6 6
Cooper Crouse-Hinds GmbH
Explosion protected terminal boxes made of stainless
steel type STB / NXT
4 Field of application
The plastic or stainless steel terminal boxes
are suitable for use in Zone 1 and 2 as well
as in Zones 21 and 22 hazardous areas acc.
to EN/IEC 60 079-10!
The enclosure materials employed, including
the exterior metal parts, are made of high-
quality materials which ensure a corrosion
protection and resistance to chemical sub-
stances corresponding to the requirements in
a "normal industrial atmosphere":
- special stainless steel V4 A AISI 316
In case of use in an extremely aggresive
atmosphere, please refer to manufacturer.
5 5 5 5 5 Use / Properties Use / Properties
Use / Properties Use / Properties Use / Properties
The terminal boxes are intended for the
distribution of electrical energy, e.g. light
circuits, heating circuits, control circuits,
intrinsically safe circuits etc.(as to temperature
class, explosion group, permissible ambient
temperature, see technical data).
The electrical limiting values that are
decisive for the intrinsic safety shall be
observed.
The terminal boxes can also be used in a
„normal industrial area".
The data as per point 3 and 4 will have to
be taken into account with the use.
Applications other than described are not
permitted without COOPER CROUSE-
HINDS´s prior written consent.
For the operation, the instructions stated in
section 7 of the operating instructions will
have to be observed.
The responsibility for the suitability and proper
use of the terminal boxes lies on the user.
6 6 6 6 6 Installation Installation Installation Installation Installation
For the mounting and operation, the
respective national regulations as well as the
general rules of engineering will have to be
observed.
6.1 6.1 6.1 Mounting Mounting Mounting
6.1 6.1 Mounting Mounting
The plastic and stainless steel terminal boxes
can be mounted without opening their
enclosure.
When mounting the terminal boxes directly
onto the wall, they shall rest evenly only on
the fastening points provided for them.
The chosen screw must match the fastening
hole.
They shall not damage the hole (e.g. use
of a washer).
If the screws are overtightened, the f the screws are overtightened, the f the screws are overtightened, the f the screws are overtightened, the f the screws are overtightened, the
terminal boxes may be damaged. terminal boxes may be damaged. terminal boxes may be damaged.
terminal boxes may be damaged. terminal boxes may be damaged.
6.2 Opening the apparatus/
Electrical connection
Before opening the apparatus, it is
necessary to ensure that there is no
voltage or to take suitable protective
measures.
The electrical connection of the apparatus
may only be carried out by skilled staff.
The table indicating the current load
values which is provided on the cover
inside of the terminal boxes is to be
observed.
The insulation of the conductors shall
reach up to the terminal. The conductor
itself shall not be damaged.
The properly bared conductors of the cables
shall be connected, taking into account the
respective regulations.
The connectible min. and max. conductor
cross-sections will have to be observed.
All screws and/or nuts of the supply terminals,
and unused terminals, shall be tightened down.
The fitted standard terminals are designed for
direct connection of conductors with copper
cores.
The conductors shall be connected with
special care in order to maintain the
explosion category.
The supply terminals are designed for the
connection of copper conductors. If multi- or
fine-wire connecting cables are used, the wire
ends will have to be handled in acc. with the
applicable national and international rules
(e. g. use of ferrules).
If stud terminals are fitted, DIN cable lugs
shall be used.