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We manufacture high-tech in thermal process engineering and construction.

Our products

Heating chambers | Melting pots | Drum Heaters | Immersion heater

References

Consideralbe companies are our customers and co-operate successfully for many years.

+49 - 27 32 - 55 90 370 | +49 - 27 32 - 55 90 371 | EMAIL: info@conthermo.de |  

Heating Chambers - Explosion protection

ConThermo Explosion Protection

ConThermo Explosion ProtectionClassification and marking acc. to ATEX 95
CE - communauté européenne
The manufacturer commits itself to keep the EC-guidelines, e.g. RL94/9/EG resp.. DIN EN 500 13 A1
ConThermo Explosion ProtectionAccredited Bodies (in extract)
Accred. Bodies
Country Ident
PTB Germany
0102
EXAM Germany 0158
DOS Germany 0297
BAM Germany 0589
EECS GB 0600
SIRA GB 0518
Accred. Bodies Country Ident
INERIS France 0080
LCIE France 0081
LOM Spain 0163
UL USA -
FM USA -
CSA Canada -
 
ConThermo Explosion Protection Standardized sign for free merchandise movement within the EU/EC
ConThermo Explosion ProtectionStandardized sign for free merchandise movement within the EU/EC
GROUP 1: mining endangered by mine gas (Mining area)
GROUP 2: other explosion endangered areas (over ground)
ConThermo Explosion ProtectionExplosion groups
Category Gas Zone
1 G 0 (Gas)
2 G 1 (Gas)
3 G 2 (Gas)
M 1 Coal Mining
M 2 Coal Mining
Category Staub Zone
1 D 20 (Dust)
2 D 21 (Dust)
3 D 22 (Dust not conductible)
2 D 22 (Dust conductible)
2 D 22 (Dust conductible)
 
ConThermo Explosion ProtectionMarking
E = Certification acc. to CENELEC
EX = Explosion protected
ConThermo Explosion ProtectionKennzeichnung
Type of protection
Scheme/
Image

Main application Standard
e - increased safety
(especially mechan.
constructions)
ConThermo terminal and junction boxes, control boxes for installing Ex-components
(with a different type of protection), squirrel-cage
motors, light fittings

EN 50 019
IEC 60 079-7
FM 3600
UL 2279

d - flame proof
enclosure
ConThermo switchgear and control station and indicating equipment,
control systems, motors, transformers, heating equipment, light fittings

EN 50 018
IEC 60 079-1
FM 3600
NFPA 496

p - pressurized
apparatus
ConThermo switchgear and control cabinets, analysers, large motors
px = for use in Zone 1, 2
py = for use in Zone 1, 2
pz = for use in Zone 2

EN 50 016
IEC 60 079-2
FM 3620
UL 2279

i* - intrinsic safety
ConThermo instrumentation technology,
fieldbus technology, sensors, actuators

EN 50 020
IEC 60 079-11
FM 3610
UL 2279

o - oil immersion
ConThermo transformers, starting resistors

EN 50 015
IEC 60 079-6
FM 3600
UL 2279

q - powder filling
ConThermo transformers, capacitors, terminal boxes
for heating conductors

EN 50 017
IEC 60 079-7
FM 3600
UL 2279

m - encapsulation
ConThermo switchgear with small capacity, control and
signalling units, display units, sensors
ma = for use in Zone 0, 1, 2
mb = for use in Zone 1, 2

EN 50 028
IEC 60 079-18
FM 3600
UL 2279

n - non-sparking
(simplified application)
Zone 2
summarized
all electrical apparatus for zone 2,
less suitable for switches

EN 50 021
IEC 60 079-15

ia = ia = for use in Zone 0, 1, 2 and ib = for use in Zone 1, 2 [EEx ib] = associated electrical apparatus – installation in the safe area

ConThermo Explosion Protection Admitted for use in areas of following substances (among others)
typical Gases ignition energy /mJ Europe Atex USA UL
Methane
280 I Mines
Propane > 180 II A D
Ethylene
60 - 180 II B C
Hydrogen < 60 II C B
Acetylene - II C A
ConThermo Explosion ProtectionTemperature classification
Max. permitted
surface temperature
T1 T2 T3 T4 T5 T6
450°C 300°C 200°C 135°C 100°C 85°C
ConThermo Explosion ProtectionMechanical Explosion Protection ATEX 95
Supplementary hint to DIN EN 13463-1
(e.g. danger of explosion by friction or abrasion of mechanical parts, e.g. bearing or brakes are overheating)

ConThermo Explosion ProtectionIgnition preventive measures
-fr- = protection by cloud-restraining encapsulation
-b- = ignition source monitoring
-d- = pressurized encapsulation
-p- = overpressure encapsul.
-g- = intrinsic safety
-k- = liquid encapsulation
-c- = protection by safe construction
 
 
ConThermo Explosion ProtectionEEx-Marking example:
ConThermo Explosion Protection fr II T4 ignition enclosure (mechanically)
ConThermo Explosion Protection EEx II 3 G application (zone 2)
 
ConThermo Explosion ProtectionExamples for classification of gases and vapours in explosion groups and temperature classes
  T1 T2 T3 T4 T5 T6
I Methan
- - - - -
II A Acetone
Ethan
Ethylacetat
Ammoniac
Benzene(pure)
Acetic acid
Carbon monoxid
Methane
Methanol
Propane
Tuluene
Ethyl alcohol
i-Amylacetat
n-Butane
n-Butyl alcohol
Benzene
Diesel-
Kerosene-
Heating oil
n-Hexane
Acetyl aldehyde
Ethylether
- -
II B City gas
(illuminating gas)
Ethylene
- - - -
II C Hydrogen
Acetylene
- - - Sulphur hydro-
carbon
ConThermo Explosion Protection Classification for the definition of explosion endangered zones
explosive
atmosphere existing
Europe USA/Canada
gases
Zone
dust
Zone
gas
Cl./Div.
dust
Cl./Div.
fibres
Cl./Div.
continuously (> 1000 h/year)
0 20 I/1 II/1 III/1
likely to occur (10-1000 h/Jahr)
1 21 I/1 II/1 III/1
infrequently (> 10 h/year)
2 22 I/2 II/2 III/2
ConThermo Explosion Protection Marking of the IP-protection classes (acc. to EN 60529)
1st digit Protection against touch
0 = no protection
1 = foreign body> 50 mm
2 = foreign body> 12 mm
3 = foreign body> 2,5 mm
4 = foreign body> 1 mm
5 = dust protectedt
6 = dust tight
-
-
2nd digit Protection against water
0 = no protection
1 = water droplets falling vertical
2 = water droplets falling at an angle (75-90°)
3 = protected against spraying water
4 = protected against splashing water
5 = protected against water jets
6 = protected against flooding
7 = temporary immersion
8 = continuous immersion