Rexroth IndraDyn A
Motors for Hazardous Areas
13-3
DOK-MOTOR*-MAD/MAF****-PR03-EN-P
Explosion
sub-group
Gases and vapors
IIA
Ammonia
methane
ethane
propane
Ethanol
cyclohexane
n-butane
Gasolines in
general
I.P. fuel
n-hexane
Acetaldehyde
IIB
Town gas
acrylonitrile
Ethylene
ethylenoxide
Ethylene glycol
hydrogen sulphide
Ethylene
ether
IIC
Hydrogen
Ethine
(acetylene)
Carbo-bisulphide
Fig. 13-1:
Explosion sub-group gases and vapors
For all types of protection, the equipment of Group II must be labeled in
accordance with their maximum surface temperature as shown in Fig.
13-3.
The electrical equipment is designed according to the type of protection.
The requirements are stipulated in special standards.
Type of protection
Designation
Standard (predecessor)
Pressure-resistant casing
EEx d
EN 60079-1 (EN 50018)
Increased safety
EEx e
EN 60079-7 (EN 50019)
Intrinsic safety
EEx i
EN 60079-11 (EN 50020)
Pressurizing
EEx p
EN 60079-2 (EN 50016)
Encapsulation
EEx m
EN 60079-18 (EN 50028)
Oil immersion
EEx o
EN 60079-6 (EN 50015)
Powder filling
EEx q
EN 60079-5 (EN 50017)
Degree of protection 'n’
EEx n
EN 60079-15 (EN 50021)
Fig. 13-2:
Degree of protection
Electrical equipment of these degree of protection are certified by way of
a prototype test by a neutral body.
Electrical equipment of group II must be labeled according to EN 60079-
0:2004, chapter 5.3.2.2, and either
•
classified (preferably) in a temperature class in compliance with Fig.
13-3, or
•
labeled with the respective maximum surface temperature, or
•
if applicable, restricted to the action of a specific gas for which the
equipment is intended.
Temperature class
Maximum surface temperature [°C]
T1
450
T2
300
T3
200
T4
135
T5
100
T6
85
Fig. 13-3:
Classification of the maximum surface temperature in classes for
electrical equipment of Group II
Classification of the gases and
vapors
Types of protection
Temperature classes
Summary of Contents for Rexroth IndraDyn A Series
Page 10: ...VIII Table of Contents Rexroth IndraDyn A DOK MOTOR MAD MAF PR03 EN P ...
Page 14: ...1 4 Introduction to the Product Rexroth IndraDyn A DOK MOTOR MAD MAF PR03 EN P ...
Page 150: ...5 42 Dimension Sheets IndraDyn A Rexroth IndraDyn A DOK MOTOR MAD MAF PR03 EN P ...
Page 174: ...6 24 Type Codes IndraDyn A Rexroth IndraDyn A DOK MOTOR MAD MAF PR03 EN P ...
Page 196: ...8 16 Connection Techniques Rexroth IndraDyn A DOK MOTOR MAD MAF PR03 EN P ...
Page 238: ...9 42 Application Notes Rexroth IndraDyn A DOK MOTOR MAD MAF PR03 EN P ...
Page 256: ...12 10 Operating IndraDyn A Motors Rexroth IndraDyn A DOK MOTOR MAD MAF PR03 EN P ...
Page 285: ...Rexroth IndraDyn A Index 14 5 DOK MOTOR MAD MAF PR03 EN P ...
Page 286: ...14 6 Index Rexroth IndraDyn A DOK MOTOR MAD MAF PR03 EN P ...
Page 287: ......