eltherm Ex-It-R Guide

eltherm GmbH
Ernst-Heinkel-Strasse 6 -10
57299 Burbach, Germany
P.: [phone]
F.: [phone]
[email protected]
BU-139
www.eltherm.com
Ex-It-R
OPERATION
MANUAL
INSTALLATION & OPERATION

CONTENT
TOPIC PAGE
DESCRIPTION & TECHNICAL DATA 4
DESCRIPTION 4
MODELL VIEWS 4
EXPLOSION PROTECTION 4
CERTIFICATION 4
STANDARDS 4
MARKING 4
TEST STANDARDS 4
TECHNICAL DATA 5
MODELLS 5
Ex-It-R (0X80070) 5
Ex-It-R-T (0X80082) 6
Ex-It-R ELTf (0X80092) 6
INSTALLATION 7
SAFETY INSTRUCTIONS 7
RECEIPT OF THE GOODS 7
STORAGE 7
RECOMMENDED TOOLS 7
REQUIRED WRENCH SIZES 7
ASSEMBLY INSTRUCTIONS 7
MOUNTING ON THE PIPE 8
OPENING THE ENCLOSURE 9
FASTEN THE ENCLOSURE 9
CONNECT THE TRACE HEATER / PT 100 9
CLOSE THE ENCLOSURE 9
CHECK AFTER INSTALLATION 10
OPERATION & MAINTENANCE 10
You can also find this document on the eltherm website.
Please visit our download area.

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Operation Manual
Ex – Junction box Ex-it-R
BU-139
Revision 0
eltherm GmbH
Ernst-Heinkel-Str. 6-10
57299 Burbach
T.: [phone]
F.: [phone]
[email protected]
Document:
8643040X800XX Operation Manual Ex-it-R
(BU-139) EN
Operation Manual
Ex-it-R
Autor: Detlef Matthes Datum: 12.05.2023
Revision: 0Datum:
Proviso
We reserve the right to make technical changes. Changes, errors or misprints shall not form the basis for any claim to compen-
sation for damages. Comply with the applicable and currently valid standards and regulations for safety-related components
and systems.
NOTE
Important information and instructions for safe, effective and
environmentally compatible usage.
i
ATTENTION
Refers to a potentially dangerous situation. If it is not prevented,
there is a risk of danger or malfunction.
WARNING
Refers to a dangerous situation. If it is not prevented there is risk
of injury or at least a high risk of material damage.
DANGER
Refers to an extremely dangerous situation. If it is not prevented
there is risk of death or at least a high risk of serious injuries.
Contact us: [phone] •[email protected]
The WEEE logo indicates that this product should not be disposed of with other waste.
For more information on the disposal and recovery of waste electrical and electronic equipment (WEEE) and
collection points, please contact your local waste disposal company or the manufacturer from whom you
purchased the product.
IMPORTANT INFORMATION FOR STORAGE
For proper and safe use of the ELAK-Ex-R connection boxes, please follow these instructions.
Please keep these instructions for future reference (e.g. in the system documentation).
IMPORTANT DISPOSAL INFORMATION

4
125 mm
Ø 154.5 mm
ATEX II 2G Ex eb IIC T6 Gb
II 2D Ex tb IIIC T 85°C Db
IEC-Ex Ex eb IIC T6 Gb
Ex tb III C T85°C Db
266 mm
II 2G Ex eb IIC T6 Gb II 2D Ex tb IIIC T85°C Db
EN 60079-0:2012 + A11:2013, IEC 60079-0 Ed. 6,
EN 60079-7:2015, IEC 60079-7 Ed. 5
EN 60079-31:2014, IEC 60079-31 Ed. 2.
DESCRIPTION & TECHNICAL DATA
The innovative junction box (Ex-It-R) is suitable for use in hazardous areas and offers the user many advantages. For example,
due to the shape of the box, the inserted cable only has to be bent slightly, thus protecting the cable from mechanical stress
and damage.
A safety screw connection prevents unauthorised opening of the junction box or unintentional shifting of the cover (special
tool included in delivery). Additional fastening options for identification labels enable reliable identification of heating circuits in
complex systems and allow customer-specific markings.
MODELL VIEWS
EN 60079-0:2012 + A11:2013, IEC 60079-0 Ed. 6
EN 60079-7:2015, IEC 60079-7 Ed. 5
EN 60079-31:2014, IEC 60079-31 Ed. 2
MARKINGEXPLOSION PROTECTION
CERTIFICATION
STANDARDS
IBExU 08 ATEX 1113 X
IECEx IBE 16.0001 X
DESCRIPTION
TEST STANDARDS
- 45°C to + 50°C (T6, T85°C) Terminal box.
The minimum operating temperature depends on the use
of the cable glands, blanking plugs or reducers and may
vary.
ATTENTION

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Operation Manual
Ex – Junction box Ex-it-R
BU-139
Revision 0
Contact us: [phone] •[email protected]
Operating voltage (max.) 800 V AC
Rated current max 32 A each terminal 6 mm² (Ex-It-R-ELTf max. 24 A)
Ambient temperature - 20 °C bis +50 °C
Nominal cross-section* Power cable max. 10 mm², Ø 9 - 17 mm
Junction box material
Polyamid, glass fiber reinforced, black
Dimensions (ca.) Ø 154,5 mm, Height 266 mm, Depth125 mm
Protection class IP 65
Operating temperature mounting stand
max. +200 °C
Material mounting stand PPS (Cable entries: 3 x flat heater; 1 x sensor cable)
Possible cable dimensions Ø 3 – 5 mm; 4 x 11 mm – 5,5 x 14 mm
Possible jacket materials TPE min. 0,7 mm; Fluoropolymer min. 0,4 mm
max. insulation thickness 100 mm
min. Tube diameter ≥ NW3/4“ / OD 20 mm (max. width of tightening strap: 16 mm)
Weight approx. 1.2 kg
* Connection cross-section (solid or ne-stranded without wire end sleeve); terminals heating cable max. 6 mm² (AWG10);
Terminals temperature sensor max. 2.5 mm² (AWG 13)
TECHNICAL DATA
DANGER
SPECIAL CONDITIONS according to Type Ex certificate
The ambient temperature range, depending on the cable glands used, is specified from -45°C or -40°C (Type R. steel 8161/5 &
steel 8161/6) to +50°C.
Ex-It-R (0X80070)
Junction box incl. mounting base, for up to 3 ELSR-N/-H, 1 connection line, 1 sensor line
MODELLS
Terminal for earthing or electrical protection
Nº. Type pcs Clamp range
1
Blind plug M20x1,5 1 -
2 Protective conductor terminal 1 2,5 mm²
3 Double-level terminal 2 2,5 mm²
4 Cable gland M25x1,5 2 9-13/12-17 mm
5 Protective conductor terminal 2 4 mm²
6 4 conductor through terminal 2 4 mm²

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Ex-It-R-T (0X80082)
Junction box incl. mounting base, for splice or T-connection, up to 3 ELSR-N/-LS/-H,/-SH/-SHH
Nº. Type pcs Clamp range
1
Blind plug M20x1,5 1 -
2
Blind plug M25x1,5 1 -
3
Protective conductor terminal 1 10 mm²
4 3 conductor through terminal 2 10 mm²
Terminal for earthing or electrical protection
Nº. Type pcs Clamp range
1
Blind plug M25x1,5 1 -
2 Cable gland M20x1,5 1 9 - 12 mm
3 Protective conductor terminal 2 2,5 mm²
4 Feed through-terminal 8 2,5 mm²
Ex-It-R-ELTf (0X80092)
Junction box incl. mounting base, 1 PT100 or 1 double PT100
Terminal for earthing or electrical protection

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Operation Manual
Ex – Junction box Ex-it-R
BU-139
Revision 0
Contact us: [phone] •[email protected]
ATTENTION
• The following steps should only be carried out by
persons trained in handling explosive equipment.
• Strict compliance with the relevant safety regulations in
potentially explosive atmospheres is a requirement for
the safety of persons, plants and equipment.
• The persons entrusted with the planning, installation
and maintenance bear a special responsibility and must
therefore be thoroughly familiar with the applicable
regulations.
• These instructions are intended for this group of people
and contain all the important information required for
the safe handling of the ELAK-Ex-R junction boxes.
• The instructions must be kept together with the system
documentation for later use and must be kept and be
available during the entire service life of the product.
SAFETY INSTRUCTIONS
RECEIPT OF THE GOODS
On receipt of the goods, check the junction boxes and the
accessories and compare the type information with the infor-
mation on the delivery note to ensure that the correct mate-
rial has been delivered.
STORAGE
Storage should be in a dry, clean place at an ambient
temperature from 0°C to 50°C.
INSTALLATION
RECOMMENDED TOOLS
ASSEMBLY INSTRUCTIONS
ATTENTION
• When selecting the mounting location, take into ac-
count the degree of mechanical danger to the junction
box and the cable entries as well as the permissible am-
bient temperature.
• Ensure that the surface on which the junction box is
mounted is capable of bearing loads.
• Cables inserted into the junction box must be laid firmly
and secured against being pulled out of the cable entry
(e.g. by a cable clamp).
• Unused clamping points must be tightened.
• All cable entries, reducers and blind plugs may only be
used in conjunction with threaded connection seals, O-
rings or moulded sealing elements and must be separa-
tely tested and approved for type of protection „e“ or „t“
with EPL Gb or Db.
• Seals in the cable entries must not be exchanged or ne-
sted.
• Threaded boreholes can be reduced in size. However,
several reducers must not be reductions must not be
nested.
• Before inserting blind plugs, reducers or conduit entries
into free threaded boreholes, make sure that the threa-
ded borehole is clean and undamaged and that the re-
spective threads fit together.
• After connection, all openings must be closed tightly
(cover, threaded boreholes, cable entries). Use suitable
open-end, ring or socket spanners to tighten the cable
entries. The torques (see before) must be observed.
• ATTENTION: Excessive tightening may impair the IP pro-
tection class!
• The lid of the junction box is designed to mount a iden-
tification plate provided by the customer. Use screws Ø
2.2 x 6 mm for fastening.
REQUIRED WRENCH SIZES
Size
Clamping
range
Wrench
size
Torques
Thread Screw
[mm] [mm] [Nm]
M20 5,5 - 13 24 3,75 3,5 - 2,5
M25 8 - 17 29 5 5 - 3

8
500 mm
200 mm
200 mm
4 Remove the adhesive tape
and strong wire from the
sensor line.
MOUNTING ON THE PIPE
1 Do not fasten heating
cable and sensor line at
the planned measurement
point approx. 500 mm.
2 Prepare the end of the sensor line with a strong wire and
by using adhesive tape to lead a sensor line into the mounting
base.
3 Lead a sensor line
into the opening
provided and pull it
about 200 mm into the
mounting base.
5 Cut off the end of the
heating cable at an angle of
about 45°.
7 Guide the heating cable
about 200 mm through the
mounting stand.
6 Guide the heating cable
into the mounting stand.
8 Fasten the moun-
ting stand onto the
pipe with a strap. Do
not feed tightening
strap above heating
cable or sensor cable!
9 Mount the heating cable
connection (not included
with delivery).

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Operation Manual
Ex – Junction box Ex-it-R
BU-139
Revision 0
Contact us: [phone] •[email protected]
OPENING THE ENCLOSURE FASTEN THE ENCLOSURE
CONNECT THE TRACE HEATER / PT 100
ATTENTION
• Please observe the respective installation instructions
for the heating cables / sensors to be connected.
• Make sure that all terminals and cable glands are tighte-
ned according to the instructions.
• Before closing the terminal box, carry out the installa-
tion check of the heating cables.
10 Tighten the head-
less screw with an Allen
wrench (size 2) until the
locking arm is flush with
the side bars
11 Insert a flat-tip
screwdriver between the
locking arm and the
rear bar and
push the locking arm for-
ward a few millimetres by
turning the screwdriver.
12 Turn the headless
screw back with the Allen
wrench (size 2) until it is
protruding slightly
out of the locking arm.
13 Lift the
lid (using the-
screwdriver)
14 Open the
lid (using the-screwdri-
ver)
15 Attach the housing to the
Ex-it mounting stand.
The housing must engage clear-
ly audibly (2x click).
CLOSE THE ENCLOSURE
16 Visual inspection of housing and cover to ensure they
are not damaged. Cover can only be inserted in one position
(locking arms / twist protection recesses have different width).
Move the cover to the appropriate position.

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eltherm GmbH
Headquarters
Ernst-Heinkel-Straße 6 -10
57299 Burbach. Germany
T.: [phone]
F.: [phone]
[email protected]
CHECK AFTER INSTALLATION
ATTENTION
After completing the installation, the following steps must
be taken:
• Visual inspection of the junction boxes for possible me-
chanical damage.
• Damaged junction boxes must not be put into operation
and must be replaced.
• Check the cover of the junction box and its attachments
(cable entries) for tight fit.
• All threaded openings must be fitted with cable entries
or blind plugs, which must be firmly tightened and tight.
OPERATION & MAINTENANCE
DANGER
• The junction boxes may only be opened (this also in-
cludes loosening cable entries!) in a de-energised state.
disconnected from the power supply.
• Damaged junction boxes must not be put into opera-
tion.
ATTENTION
• When operating the junction boxes, the permissible am-
bient temperature must be observed.
• The locally applicable safety regulations must be obser-
ved.
• The permissible operating conditions according to
„Technical data“ or labelling (voltage, current, operating
temperature, maximum ambient temperature, IP protec-
tion class) must be observed.
• The cable entries must not be operated in dust explosion
hazardous areas with dust deposits >= 50 mm.
• It is recommended to visually check the integrity and
tight fit of the cable gland and the connected cable at
suitable intervals depending on the installation location
and application.
• If necessary, the cable entries must be retightened, da-
maged junction boxes or cable entries must be replaced
by qualified personnel.
• If repair work is to be carried out on heated system parts,
the junction boxes must be protected against damage.
• After completion of the repair work, the junction box
must be checked again.
17 Attach the cover with the narrower locking arm (wit-
hout a headless screw), close the cover and…
18 Use the pliers to lock the cover
8643040X800XX Operation Manual Ex-It-R (BU-139) EN - subject to technical changes without notice.