www.limatherm.
com
N-L3625
Updated 15.07.2019
APPLICATION MANUAL
Flameproof Ex d
Universal Instrument Housing Type:
XD-SI, XD-SIwin, XD-SILwin,
Contents:
1. Destination.
2. Flameproof joints.
3. Carried out tests.
4. Temperature classes, ambient temperature, power dissipation.
5. Earth and protection terminals.
6. Cover locking.
7. Protection degree.
8. Way of fixing.
9. Marking.
NOTES OF SAFETY
The XD-SI, XD-SIwin, XD-SILwin series are designed to accommodate different electronic
instruments or devices. If used incorrectly it is possible that application-related dangers
may arise.
The XD-SI, XD-SIwin, XD-SILwin universal instrument housing may be used by qualified
and authorized company and people only, under strict observance of these application
manual and relevant standards, legal requirements, and, where appropriate the certificate.
Only the empty XD-SI... instrument housing is certified. When used as part of an end
product assembly, subsequent approval of the end use equipment assembly is required.
page 1 / 6
Limatherm S.A., ul. Tarnowska 1, 34-600 Limanowa, Poland, tel +48 18 337 98 20, fax +48 18 337 98 25
www.limatherm.com
1. DESTINATION
N-L3625
• Marking • Service temperature
2014/34/UE IECEx Tserv Tserv
Housing type o-ring VMQ o-ring FKM
Ex db I Mb rubber rubber
I M2 Ex db I Mb
Ex db IIC Gb XD-SI -50 to +150°C -20 to +200°C
II 2G Ex db IIC Gb XD-SIwin
Ex tb IIIC Db -50 to +85°C -20 to +85°C
II 2D Ex tb IIIC Db XD-SILwin
• Standards: • Possible zone application
ATEX 2014/34/UE Zone Protection Code
EN 60079-0, EN 60079-1, EN 60079-31, Ex d + Ex ia, Exd
Zone 0, Zone 20
IEC 60079-0, IEC 60079-1, IEC 60079-31 +machanical separation
Zone 1, Zone 21 Ex d
Zone 2, Zone 22 Ex d
! The empty enclosure can be used for electrical equipment designed for ambient
temperatures not exceed range -50°C to +85°C !
! An apparatus installed inside of the empty enclosure can has any lay-out, which ensures,
that in any cross-section area will be at least 40% of area free for group IIC and 20% for
group I Mb !
! A circuit breakers or contactors containing oil filling are not allowed to be installed inside
of the empty enclosure !
2. FLAMEPROOF JOINTS
Flameproof joints are designed for volume 500 < V ≤ 2000 cm3 group II C enclosures.
page 2 / 6
Limatherm S.A., ul. Tarnowska 1, 34-600 Limanowa, Poland, tel +48 18 337 98 20, fax +48 18 337 98 25
www.limatherm.com
N-L3625
Requirements of
Lp. Connection type Achieved values
60079-1
threads engaged ≥ 5 9
1 M100×2 6H/6g depth of
18,5mm
engagement ≥ 8 mm
6g of male thread should be
fit of thread 6H/6g
ensured by customer
M20×1.5 6H should be ensured by
M24×1.5 6H threads engaged ≥ 5 l1 customer, possible to reach: L1 6,5
M25×1.5 6H 11
should be ensured by
depth of
customer, possible to reach: 10mm
engagement ≥ 8 mm
17mm
6g of male thread should be
fit of thread 6H/6g
D1 ensured by customer
2 proces should be ensured by
opening threads engaged ≥ 5 customer, possible to reach: 5
M27×2 6H l1 L1
8,5
should be ensured by
depth of
customer, possible to reach: 10mm
engagement ≥ 8 mm
17mm
9
threads provided on
male part should be ensured -
each part ≥ 5
½NPTmod by customer
l1 L1
¾NPTmod should be ensured by
threads engaged customer, possible to reach: 5
5,0 ÷ 5,5
6g of male thread should be
fit of thread 6H/6g
ensured by customer
should be ensured by
M20×1.5 6H
threads engaged ≥ 5 l2, customer, possible to reach: L2, 6,5
M24×1.5 6H
l3 11 L3
M25×1.5 6H
should be ensured by
D2, D3 depth of
customer, possible to reach: 10mm
3 conduit engagement ≥ 8 mm
17mm
openings
9
threads provided on
male part should be ensured -
each part ≥ 5
½NPTmod l2, by customer L2,
¾NPTmod l3 should be ensured by L3
threads engaged customer, possible to reach: 5
5,0 ÷ 5,5
min. length of joint
4 Cemented joint 11mm
10mm
NPT threads are modified to reach 5÷5,5 engaged threads and can create flameproof joint with threaded
male part with standard cutting tolerance.
Process opening can be used for mounting sensor (e.g. level, flow sensor) or thermowell.
Conduit openings can be used to equip it with appropriate certificated Ex d flameproof cable
glands, fill sealing fittings, flexible couplings or thermowells.
Each D1, D2 and D3 opening can be plugged.
page 3 / 6
Limatherm S.A., ul. Tarnowska 1, 34-600 Limanowa, Poland, tel +48 18 337 98 20, fax +48 18 337 98 25
www.limatherm.com
N-L3625
3. CARRIED OUT TESTS
a) IMPACT TEST
Enclosurew was tested for lower mechanical strength for mines area (I M2 Ex db I Mb) 4J.
b) OVERPRESSURE TEST
Enclosure was verified by overpressure static test 41 bar / 10s (reference pressure 10,07 bar) for
types XD-SI and XD-SIwin and 34 bar (reference pressure: 8,32 bar) for type XD-SILwin.
4. TEMPERATURE CLASSES, AMBIENT TEMPERATURE, MAX. POWER
DISSIPATION
Maximum power dissipation [W]
For all variety of For all variety of
Temp. class T6,
enclosures Temp. class T5, or enclosures
Tamb or surface temp. 85º
Position surface temp. 100ºC Position
C
horizontally/vertically horizontally/vertically
40ºC ∆ 0 ≤ 40 K 20,0 / 15,0 ∆ 0 ≤ 55 K 29,0 / 24,0
55ºC ∆ 0 ≤ 25 K 11,0 / 8,5 ∆ 0 ≤ 40 K 20,0 / 15,0
70ºC ∆ 0 ≤ 10 K 3,6 / 3,1 ∆ 0 ≤ 25 K 11,0 / 8,5
85ºC N/A ∆ 0 ≤ 10 K 3,6 / 3,1
5. EARTH AND PROTECTION TERMINALS
Cable cross section
2
Place Type [mm ]
Stranded wire Solid wire
Protection
Inside 1.5 2.5
terminal
Outside Earth terminal 4.0 6.0
6. COVER LOCKING
Cover is locked by screw with hex socked
using hex spanner with across flat 2 [mm].
page 4 / 6
Limatherm S.A., ul. Tarnowska 1, 34-600 Limanowa, Poland, tel +48 18 337 98 20, fax +48 18 337 98 25
www.limatherm.com
7. PROTECTION DEGREE
N-L3625
There are three connections of assembled device deciding about IP degree:
1 – cover,
2 – process opening,
3 – conduit openings.
page 5 / 6
Limatherm S.A., ul. Tarnowska 1, 34-600 Limanowa, Poland, tel +48 18 337 98 20, fax +48 18 337 98 25
www.limatherm.com
N-L3625
Threaded connection Possible If IP for each connection IP of assembled
sealing IP device
1 2 3
Without sealing - standard
54 54 IP 54
accuracy class thread
Use of a sealant, e.g. Loctite 68 66 IP 66
68 68 IP 68
577
Thread tightened
68
with O-ring
! ATTENTION !
It is required min IP65 protection for instruments designed for dust zones.
(Besides zone 22, non-conductive dust, where min IP54 protection is required)
8. WAY OF FIXING
9. MARKING
Limatherm label with marking is put inside the housing.
The label can be glued on the outside or inside surface, it’s up to customer.
Producer of assembled instrument should apply additional own label with the marking of complete
sensor or transfer valuable information from Limatherm’s label to instrument nameplate.
page 6 / 6
Limatherm S.A., ul. Tarnowska 1, 34-600 Limanowa, Poland, tel +48 18 337 98 20, fax +48 18 337 98 25
