WAGO I/O SYSTEM 750 User manual

Fieldbus Independent
I/O Modules
2 AO 0-20 mA EEx i
750-585
Manual
Version 1.0.3

ii • General
WAGO-I/O-SYSTEM 750
I/O Modules
Copyright ©2006 by WAGO Kontakttechnik GmbH & Co. KG
All rights reserved.
WAGO Kontakttechnik GmbH & Co. KG
Hansastraße 27
D-32423 Minden
Phone: [phone] – 0
Fax: [phone] – 1 69
E-Mail: [email protected]
Web: http://www.wago.com
Technical Support
Phone: [phone] – 5 55
Fax: [phone] – 85 55
E-Mail: [email protected]
Every conceivable measure has been taken to ensure the correctness and com-
pleteness of this documentation. However, as errors can never be fully ex-
cluded, we would appreciate any information or ideas at any time.
E-Mail: [email protected]
We wish to point out that the software and hardware terms as well as the
trademarks of companies used and/or mentioned in the present manual are
generally trademark or patent protected.

Content • iii
CONTENT
1Important Comments .................................................................................4
1.1 Legal Principles........................................................................................4
1.1.1 Copyright............................................................................................. 4
1.1.2 Personnel Qualification .......................................................................4
1.1.3 Intended Use ........................................................................................4
1.2 Symbols....................................................................................................5
1.3 Number Notation......................................................................................5
1.4 Safety Notes .............................................................................................6
1.5 Scope ........................................................................................................6
2I/O Modules .................................................................................................7
2.1 Analog Output Modules ...........................................................................7
2.1.1 750-585 [2 AO 0-20 mA EEx i] ..........................................................7
2.1.1.1 View................................................................................................7
2.1.1.2 Description......................................................................................7
2.1.1.3 Display Elements ............................................................................9
2.1.1.4 Schematic Diagram.........................................................................9
2.1.1.5 Technical Data ..............................................................................10
2.1.1.6 Process Image ...............................................................................12
2.1.1.6.1 Standard Data Format ..............................................................12
3Use in Hazardous Environments .............................................................13
3.1 Foreword ................................................................................................13
3.2 Protective measures................................................................................13
3.3 Classification meeting CENELEC and IEC...........................................13
3.3.1 Divisions............................................................................................13
3.3.2 Explosion protection group ...............................................................14
3.3.3 Unit categories................................................................................... 15
3.3.4 Temperature classes...........................................................................15
3.3.5 Types of ignition protection ..............................................................16
3.4 Classifications meeting the NEC 500.....................................................17
3.4.1 Divisions............................................................................................17
3.4.2 Explosion protection groups..............................................................17
3.4.3 Temperature classes...........................................................................18
3.5 Identification ..........................................................................................19
3.5.1 For Europe .........................................................................................19
3.5.2 For America.......................................................................................20
3.6 Installation regulations ...........................................................................21

4 • Important Comments
Legal Principles
WAGO-I/O-SYSTEM 750
I/O Modules
1 Important Comments
To ensure fast installation and start-up of the units described in this manual,
we strongly recommend that the following information and explanations are
carefully read and abided by.
1.1 Legal Principles
1.1.1 Copyright
This manual is copyrighted, together with all figures and illustrations
contained therein. Any use of this manual which infringes the copyright
provisions stipulated herein, is not permitted. Reproduction, translation and
electronic and photo-technical archiving and amendments require the written
consent of WAGO Kontakttechnik GmbH & Co. KG. Non-observance will
entail the right of claims for damages.
WAGO Kontakttechnik GmbH & Co. KG reserves the right to perform
modifications allowed by technical progress. In case of grant of a patent or
legal protection of utility patents all rights are reserved by WAGO
Kontakttechnik GmbH & Co. KG. Products of other manufacturers are always
named without referring to patent rights. The existence of such rights can
therefore not be ruled out.
1.1.2 Personnel Qualification
The use of the product detailed in this manual is exclusively geared to
specialists having qualifications in PLC programming, electrical specialists or
persons instructed by electrical specialists who are also familiar with the valid
standards. WAGO Kontakttechnik GmbH & Co. KG declines all liability
resulting from improper action and damage to WAGO products and third party
products due to non-observance of the information contained in this manual.
1.1.3 Intended Use
For each individual application, the components supplied are to work with a
dedicated hardware and software configuration. Modifications are only
permitted within the framework of the possibilities documented in the
manuals. All other changes to the hardware and/or software and the non-
conforming use of the components entail the exclusion of liability on part of
WAGO Kontakttechnik GmbH & Co. KG.
Please direct any requirements pertaining to a modified and/or new hardware
or software configuration directly to WAGO Kontakttechnik GmbH & Co.
KG.

Important Comments • 5
Intended Use
WAGO-I/O-SYSTEM 750
I/O Modules
1.2 Symbols
Danger
Always abide by this information to protect persons from injury.
Warning
Always abide by this information to prevent damage to the device.
Attention
Marginal conditions must always be observed to ensure smooth operation.
ESD (Electrostatic Discharge)
Warning of damage to the components by electrostatic discharge. Observe
the precautionary measure for handling components at risk.
Note
Routines or advice for efficient use of the device and software optimization.
More information
References on additional literature, manuals, data sheets and INTERNET
pages
1.3 Number Notation
Number Code Example Note
Decimal 100 normal notation
Hexadecimal 0x64 C notation
Binary '100'
'0110.0100'
Within ',
Nibble separated with dots

6 • Important Comments
Safety Notes
WAGO-I/O-SYSTEM 750
I/O Modules
1.4 Safety Notes
Warning
Switch off the system prior to working on bus modules!
In the event of deformed contacts, the module in question is to be replaced, as
its functionality can no longer be ensured on a long-term basis.
The components are not resistant against materials having seeping and
insulating properties. Belonging to this group of materials is: e.g. aerosols,
silicones, triglycerides (found in some hand creams).
If it cannot be ruled out that these materials appear in the component
environment, then additional measures are to be taken:
- installation of the components into an appropriate enclosure
- handling of the components only with clean tools and materials.
Attention
Cleaning of soiled contacts may only be done with ethyl alcohol and leather
cloths. Thereby, the ESD information is to be regarded.
Do not use any contact spray. The spray may impair the functioning of the
contact area.
The WAGO-I/O-SYSTEM 750 and its components are an open system. It
must only be assembled in housings, cabinets or in electrical operation
rooms. Access must only be given via a key or tool to authorized qualified
personnel.
The relevant valid and applicable standards and guidelines concerning the
installation of switch boxes are to be observed.
ESD (Electrostatic Discharge)
The modules are equipped with electronic components that may be destroyed
by electrostatic discharge. When handling the modules, ensure that the
environment (persons, workplace and packing) is well grounded. Avoid
touching conductive components, e.g. gold contacts.
1.5 Scope
This manual describes the Analog Output Module 750-585
2 AO 0-20 mA EEx i of the modular WAGO-I/O-SYSTEM 750.
Handling, assembly and start-up are described in the manual of the Fieldbus
Coupler. Therefore this documentation is valid only in the connection with the
appropriate manual.

750-585 [2 AO 0-20 mA EEx i] • 7
View
WAGO-I/O-SYSTEM 750
I/O Modules
2 I/O Modules
2.1 Analog Output Modules
2.1.1 750-585 [2 AO 0-20 mA EEx i]
2-Channel Analog Output Module (0-20 mA EEx i)
2.1.1.1 View
13 14
-
A1 A2
SS
750-585
15 16
-
Function
AO 1
Function
Data contacts
0V
AO 2
Power jumper contacts
AO 1
AO 2
Shield
(screen) Shield
(screen)
Fig. 2.1.1-1: 2-Channel Analog Output Module 750-585 g058500e
2.1.1.2 Description
The analog output module 750-585 creates intrinsically safe standardized
signals of 0-20 mA in the hazardous area of Zone 1.
The installation of the WAGO-I/O-SYSTEM 750 is to be done in zone 2 or in
non-hazardous environments.
The module has two output channels and enables, for example, the direct
wiring of two 2-conductor actuators to the connections AO 1 and 0V or AO 2
and 0V. The intrinsically safe signals are transmitted via AO 1 or AO 2.
The input channels of a module have a common ground and a shield (screen)
connection (S). The Shield (screen) is directly connected to the DIN rail. A
capacitive connection is made automatically when snapped onto the DIN rail.
The Output signal of each channel is electrically isolated and will be
transmitted with a resolution of 12 bits.
The operational readiness and trouble-free internal data bus communication of
the channels are indicated via a green Function LED.

8 • 750-585 [2 AO 0-20 mA EEx i]
Description
WAGO-I/O-SYSTEM 750
I/O Modules
Any configuration of the output modules is possible within an intrinsically
safe segment when designing the fieldbus node. Grouping of module types is
not necessary.
Attention
An additional supply module 750-625, DC 24 V EEx i must be added for the
approved intrinsically safe field side supply voltage of 24 V.
Supply principle:
625 435 535 485
EEx i EEx iEEx iEEx i EEx i
585
24 V 24 V 24 V
Fieldbus Coupler/ Controller I/O Modules
End module
Electronic Field Field
Potential 2Potential 1
The supply voltage for the field side is made automatically through the
individual I/O modules by means of power jumper contacts.
Note
If the employment of further DC 24 V EEx i Supply modules is necessary for
reasons of extent of utilization, four Separation modules (750-616) must
guarantee the distance between the intrinsically safe segments.
The analog output module 750-585 can be used with all couplers/controllers
of the WAGO-I/O-SYSTEM 750 (except for the economy types 750-320, -
323,
-324 and -327).
Further Information
General information to the explosion prevention is in the manual chapter
„Use in Hazardous Environments“ described!

750-585 [2 AO 0-20 mA EEx i] • 9
Display Elements
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.3 Display Elements
LED Channel Meaning State Function
off
No operational readiness or the
internal data bus
communication is interrupted
green 1
Function
AO 1
on
Operational readiness and
trouble-free internal data bus
communication
off
No operational readiness or the
internal data bus
communication is interrupted
13 14 15 16
Function AO 1
Function AO 2
Fig. 2.1.1-2: Display
Elements g058502x
green 2
Function
AO 2
on
Operational readiness and
trouble-free internal data bus
communication
2.1.1.4 Schematic Diagram
AO 1 / AO 2
24 V
0V
Shield
(screen)
AO
24 V
0V
Logic
Function
Shield
(screen)
750-585
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
I
U
A
D
10 nF
4,7 nF
Fig. 2.1.1-3: 2-Channel Analog Output Module 750-585 g058501e

10 • 750-585 [2 AO 0-20 mA EEx i]
Technical Data
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.5 Technical Data
Module Specific Data
Number of outputs 2
Current consumption max. (internal) 21 mA
Voltage via power jumper contacts DC 24.7 V Supply via 750-625 Supply Module
EEx i
Signal current 0 mA ... 20 mA
Load impedance < 500 Ω
Linearity ±2 LSB
Resolution 12 Bit
Conversion time < 2 ms
Measuring error 25°C < ±0.2 % of full scale value
Temperature coefficient < ±0.01 % /K of full scale value
Power consumption Pmax. 1.5 W
Power loss Pv 0.9 W
Isolation 375 V (Field/System)
Input current typ. (field) 19 mA + load (2 x 20 mA)
Bit width 2 x 16 bits data
2 x 8 bits control/status (option)
Dimensions (mm) W x H x L 24 x 64* x 100
* from upper edge of 35 DIN rail
Weight ca. 105 g
Standards and Regulations (cf. Chapter 2.2 of the Coupler/Controller Manual)
EMC-Immunity to interference (CE) acc. to EN 61000-6-2 (1999)
EMC-Emission of interference (CE) acc. to EN 61000-6-4 (2002)
EC-EMV-Directive 89/336/EEC
EC-low voltage-directive 73/23/EEC

750-585 [2 AO 0-20 mA EEx i] • 11
Technical Data
WAGO-I/O-SYSTEM 750
I/O Modules
Approvals (cf. Chapter 2.2 of the Coupler/Controller Manual)
CULUS (UL508)
ABS (American Bureau of Shipping)
BV (Bureau Veritas) (applied for)
GL (Germanischer Lloyd) Cat. A, B, C, D
KR (Korean Register of Shipping)
LR (Lloyd's Register) (applied for) Env. 1, 2, 3, 4
NKK (Nippon Kaiji Kyokai)
TÜV 02ATEX1875 X
Conformity Marking
More Information
Detailed references to the approvals are listed in the document "Overview
Approvals WAGO-I/O-SYSTEM 750", which you can find on the CD ROM
ELECTRONICC Tools and Docs (Item-No.: 0888-0412)
or in the internet under:
www.wago.com !Documentation !WAGO-I/O-SYSTEM 750 !
System Description
Explosion Protection
Ex directive 94/9/EC
EN 50014, EN 50020, EN 50021
Marking II 3 (2) GD EEx nA [ib] IIC/IIB T4
Safety Data circuit U0=27.3 V
I0 =57.5 mA
P0=392 mW
Line characteristic: linear
EEx ia IIC EEx ia IIB
L0C0L0C0
Reactance
without consideration of the
simultaneousness
11 mH 88 nF 56 mH 680 nF
IIC IIB
L0C0L0C0
≤0.2 mH 87 nF ≤0.1 mH 0.67 µF
0.5 mH 77 nF 0.5 mH 0.46 µF
1.0 mH 63 nF 1.0 mH 0.39 µF
2.0 mH 51 nF 20.0 mH 0.31 µF
Reactance
with consideration of the
simultaneousness
7.6 mH 40 nF 44.0 mH 0.23 µF

12 • 750-585 [2 AO 0-20 mA EEx i]
Process Image
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.6 Process Image
The analog output module 750-585 transmits 16-bit measured values and
8 optional status bits per channel.
The digitalized output value is transmitted in a data word (16 bits) as output
byte 0 (low) and output byte 1 (high) via the process image of the coupler /
controller.
This value is represented with a 12 bit resolution on bit B3 ... B14.
The three least significant bits (B0 ... B2) are not parsed.
Some fieldbus systems can process the status information using by means of a
status byte.
As the returned status byte of this output module is always zero, it will not be
parsed.
2.1.1.6.1 Standard Data Format
For the standard module 750-585, the output current ranging from 0 mA to
20 mA is scaled on the numerical values ranging from 0x0000 to 0x7FFF
Process values of module 750-585
numerical valueOutput current
binary
Status-
byte
0 - 20 mA Output value hex. dec. hex.
0 0000 0000 0000 0000 00 00 0 00
2.5 0001 0000 0000 0000 10 00 4096 00
5 0010 0000 0000 0000 20 00 8192 00
7.5 0011 0000 0000 0000 30 00 12288 00
10 0100 0000 0000 0000 40 00 16384 00
12.5 0101 0000 0000 0000 50 00 20480 00
15 0110 0000 0000 0000 60 00 24576 00
17.5 0111 0000 0000 0000 70 00 28672 00
20 0111 1111 1111 1111 7F FF 32767 00

Use in Hazardous Environments • 13
Foreword
WAGO-I/O-SYSTEM 750
I/O Modules
3 Use in Hazardous Environments
3.1 Foreword
Today’s development shows that many chemical and petrochemical
companies have production plants, production, and process automation
machines in operation which use gas-air, vapor-air and dust-air mixtures
which can be explosive. For this reason, the electrical components used in
such plants and systems must not pose a risk of explosion resulting in injury to
persons or damage to property. This is backed by law, directives or regulations
on a national and international scale. WAGO-I/O-SYSTEM 750 (electrical
components) is designed for use in zone 2 explosive environments. The
following basic explosion protection related terms have been defined.
3.2 Protective measures
Primarily, explosion protection describes how to prevent the formation of an
explosive atmosphere. For instance by avoiding the use of combustible
liquids, reducing the concentration levels, ventilation measures, to name but a
few. But there are a large number of applications, which do not allow the
implementation of primary protection measures. In such cases, the secondary
explosion protection comes into play. Following is a detailed description of
such secondary measures.
3.3 Classification meeting CENELEC and IEC
The specifications outlined here are valid for use in Europe and are based on
the following standards: EN50... of CENELEC (European Committee for
Electrotechnical Standardization). On an international scale, these are
reflected by the IEC 60079-... standards of the IEC (International
Electrotechnical Commission).
3.3.1 Divisions
Explosive environments are areas in which the atmosphere can potentially
become explosive. The term explosive means a special mixture of ignitable
substances existing in the form of air-borne gases, fumes, mist or dust under
atmospheric conditions which, when heated beyond a tolerable temperature or
subjected to an electric arc or sparks, can produce explosions. Explosive zones
have been created to describe the concentrations level of an explosive
atmosphere. This division, based on the probability of an explosion occurring,
is of great importance both for technical safety and feasibility reasons.
Knowing that the demands placed on electrical components permanently
employed in an explosive environment have to be much more stringent than
those placed on electrical components that are only rarely and, if at all, for
short periods, subject to a dangerous explosive environment.

14 • Use in Hazardous Environments
Classification meeting CENELEC and IEC
WAGO-I/O-SYSTEM 750
I/O Modules
Explosive areas resulting from gases, fumes or mist:
• Zone 0 areas are subject to an explosive atmosphere
(> 1000 h /year) continuously or for extended periods.
• Zone 1 areas can expect the occasional occurrence of an explosive
atmosphere (> 10 h ≤1000 h /year).
• Zone 2 areas can expect the rare or short-term occurrence of an explosive
atmosphere (> 0 h ≤10 h /year).
Explosive areas subject to air-borne dust:
• Zone 20 areas are subject to an explosive atmosphere
(> 1000 h /year) continuously or for extended periods.
• Zone 21 areas can expect the occasional occurrence of an explosive
atmosphere (> 10 h ≤1000 h /year).
• Zone 22 areas can expect the rare or short-term occurrence of an explosive
atmosphere (> 0 h ≤10 h /year).
3.3.2 Explosion protection group
In addition, the electrical components for explosive areas are subdivided into
two groups:
Group I: Group I includes electrical components for use in fire-damp
endangered mine structures.
Group II: Group II includes electrical components for use in all other
explosive environments. This group is further subdivided by
pertinent combustible gases in the environment.
Subdivision IIA, IIB and IIC takes into account that
different materials/substances/gases have various ignition
energy characteristic values. For this reason the three sub-
groups are assigned representative types of gases:
• IIA – Propane
• IIB – Ethylene
• IIC – Hydrogen
Minimal ignition energy of representative types of gases
Explosion group I IIA IIB IIC
Gases Methane Propane Ethylene Hydrogen
Ignition energy (µJ) 280 250 82 16

Use in Hazardous Environments • 15
Classification meeting CENELEC and IEC
WAGO-I/O-SYSTEM 750
I/O Modules
Hydrogen being commonly encountered in chemical plants, frequently the
explosion group IIC is requested for maximum safety.
3.3.3 Unit categories
Moreover, the areas of use (zones) and the conditions of use (explosion
groups) are subdivided into categories for the electrical operating means:
Unit
categories
Explosion
group
Area of use
M1 I Fire-damp protection
M2 I Fire-damp protection
1G II Zone 0 Explosive environment by gas, fumes or mist
2G II Zone 1 Explosive environment by gas, fumes or mist
3G II Zone 2 Explosive environment by gas, fumes or mist
1D II Zone 20 Explosive environment by dust
2D II Zone 21 Explosive environment by dust
3D II Zone 22 Explosive environment by dust
3.3.4 Temperature classes
The maximum surface temperature for electrical components of explosion
protection group I is 150 °C (danger due to coal dust deposits) or 450 °C (if
there is no danger of coal dust deposit).
In line with the maximum surface temperature for all ignition protection types,
the electrical components are subdivided into temperature classes, as far as
electrical components of explosion protection group II are concerned. Here the
temperatures refer to a surrounding temperature of 40 °C for operation and
testing of the electrical components. The lowest ignition temperature of the
existing explosive atmosphere must be higher than the maximum surface
temperature.
Temperature classes Maximum surface
temperature
Ignition temperature
of the combustible materials
T1 450 °C > 450 °C
T2 300 °C > 300 °C to 450 °C
T3 200 °C > 200 °C to 300 °C
T4 135 °C > 135 °C to 200 °C
T5 100 °C >100 °C to 135 °C
T6 85°C > 85 °C to 100 °C

16 • Use in Hazardous Environments
Classification meeting CENELEC and IEC
WAGO-I/O-SYSTEM 750
I/O Modules
The following table represents the division and attributes of the materials to
the temperature classes and material groups in percent:
Temperature classes
T1 T2 T3 T4 T5 T6 Total*
26.6 % 42.8 % 25.5 %
94.9 % 4.9 % 0 % 0.2 % 432
Explosion group
IIA IIB IIC Total*
85.2 % 13.8 % 1.0 % 501
*Number of classified materials
3.3.5 Types of ignition protection
Ignition protection defines the special measures to be taken for electrical
components in order to prevent the ignition of surrounding explosive
atmospheres. For this reason a differentiation is made between the following
types of ignition protection:
Identifi-
cation
CENELEC
standard
IEC
standard
Explanation Application
EEx o EN 50 015 IEC 79-6 Oil encapsulation Zone 1 + 2
EEx p EN 50 016 IEC 79-2 Overpressure
encapsulation
Zone 1 + 2
EEx q EN 50 017 IEC 79-5 Sand encapsulation Zone 1 + 2
EEx d EN 50 018 IEC 79-1 Pressure resistant
encapsulation
Zone 1 + 2
EEx e EN 50 019 IEC 79-7 Increased safety Zone 1 + 2
EEx m EN 50 028 IEC 79-18 Cast encapsulation Zone 1 + 2
EEx i EN 50 020 (unit)
EN 50 039 (system)
IEC 79-11 Intrinsic safety Zone 0 + 1 + 2
EEx n EN 50 021 IEC 79-15 Electrical components
for zone 2 (see below)
Zone 2
Ignition protection “n" describes exclusively the use of explosion protected
electrical components in zone 2. This zone encompasses areas where
explosive atmospheres can only be expected to occur rarely or short-term. It
represents the transition between the area of zone 1, which requires an
explosion protection and safe area in which for instance welding is allowed at
any time.
Regulations covering these electrical components are being prepared on a
world-wide scale. The standard EN 50 021 allows electrical component
manufacturers to obtain certificates from the corresponding authorities for
instance KEMA in the Netherlands or the PTB in Germany, certifying that the
tested components meet the above mentioned standards draft.

Use in Hazardous Environments • 17
Classifications meeting the NEC 500
WAGO-I/O-SYSTEM 750
I/O Modules
Type “n” ignition protection additionally requires electrical components to be
marked with the following extended identification:
• A – non spark generating (function modules without relay /without
switches)
• AC – spark generating, contacts protected by seals (function modules with
relays / without switches)
• L – limited energy (function modules with switch)
Further information
For more detailed information please refer to the national and/or international
standards, directives and regulations!
3.4 Classifications meeting the NEC 500
The following classifications according to NEC 500 (National Electric Code)
are valid for North America.
3.4.1 Divisions
The "Divisions" describe the degree of probability of whatever type of
dangerous situation occurring. Here the following assignments apply:
Explosion endangered areas due to combustible gases, fumes, mist and dust:
Division 1 Encompasses areas in which explosive atmospheres are to be expected
occasionally (> 10 h ≤1000 h /year) as well as continuously and long-term
(> 1000 h /year).
Division 2 Encompasses areas in which explosive atmospheres can be expected rarely
and short-term (>0 h ≤10 h /year).
3.4.2 Explosion protection groups
Electrical components for explosion endangered areas are subdivided in three
danger categories:
Class I (gases and fumes): Group A (Acetylene)
Group B (Hydrogen)
Group C (Ethylene)
Group D (Methane)
Class II (dust): Group E (Metal dust)
Group F (Coal dust)
Group G (Flour, starch and cereal dust)
Class III (fibers): No sub-groups

18 • Use in Hazardous Environments
Classifications meeting the NEC 500
WAGO-I/O-SYSTEM 750
I/O Modules
3.4.3 Temperature classes
Electrical components for explosive areas are differentiated by temperature
classes:
Temperature classes Maximum
surface temperature
Ignition temperature
of the combustible materials
T1 450 °C > 450 °C
T2 300 °C > 300 °C to 450 °C
T2A 280 °C > 280 °C to 300 °C
T2B 260 °C > 260 °C to 280 °C
T2C 230 °C >230 °C to 260 °C
T2D 215 °C >215 °C to 230 °C
T3 200 °C >200 °C to 215 °C
T3A 180 °C >180 °C to 200 °C
T3B 165 °C >165 °C to 180 °C
T3C 160 °C >160 °C to 165 °C
T4 135 °C >135 °C to 160 °C
T4A 120 °C >120 °C to 135 °C
T5 100 °C >100 °C to 120 °C
T6 85 °C > 85 °C to 100 °C

Use in Hazardous Environments • 19
Identification
WAGO-I/O-SYSTEM 750
I/O Modules
3.5 Identification
3.5.1 For Europe
According to CENELEC and IEC
Hansastr. 27
D-32423 Minden
ITEM-NO.:750-400
2DI 24V DC 3.0ms
0.08-2.5mm
2
0V 24V DI1
Di2
PATENTS PENDING
II 3 G
KEMA 01ATEX1024 X
EEx nA II T4
CL I DIV 2
Grp. A B C D
op temp code T4A
24V DC
AWG 28-14
55°C max ambient
LISTED 22ZA AND 22XM
24246
2101--02----03
II3G
KEMA 01ATEX1024 X
EEx nA II T4
Explosion protection group Unit category
Community symbol for
explosion protected
electrical components
Approval body and/or number of
the examination certificate
E = conforming with European standards
Ex = explosion protected component
n = Type of ignition Extended identification
Explosion protection group
Temperature class
Fig. 3.5.1-1: Example for lateral labeling of bus modules
(750-400, 2 channel digital input module 24 V DC) g01xx03e

20 • Use in Hazardous Environments
Identification
WAGO-I/O-SYSTEM 750
I/O Modules
3.5.2 For America
According to NEC 500
Hansastr. 27
D-32423 Minden
ITEM-NO.:750-400
2DI 24V DC 3.0ms
0.08-2.5mm
2
0V 24V DI1
Di2
PATENTS PENDING
II3G
KEMA 01ATEX1024 X
EEx nA II T4
CL I DIV 2
Grp. A B C D
op temp code T4A
24V DC
AWG 28-14
55°C max ambient
24246
4100--02----03
LISTED 22ZA AND 22XM
CL I DIV 2
Grp. ABCD
optemp code T4A
Explosion group
(gas group)
Explosion protection group
(condition of use category)
Area of application (zone)
Temperature class
Fig. 3.5.2-1: Example for lateral labeling of bus modules
(750-400, 2 channel digital input module 24 V DC) g01xx04e