750-841 WAGO, 750-841 Datasheet - Page 265

• Manufacturer Part Number: 750-841
• Description: CONTR.ETHERNET TCP/IP 10/100MBIT
• Manufacturer: WAGO

Specifications of 750-841

• Rohs Compliant: YES
• No. Of Digital Inputs: 10
• No. Of Digital Outputs: 10

7.3.5 Types of ignition protection
WAGO-I/O-SYSTEM 750
Busklemmen
The following table represents the division and attributes of the materials to
the temperature classes and material groups in percent:
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:
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.
Temperature classes
T1
26.6 %
Explosion group
IIA
85.2 %
Identifi-
cation
EEx o
EEx p
EEx q
EEx d
EEx e
EEx m
EEx i
EEx n
T2
42.8 %
94.9 %
IIB
13.8 %
CENELEC
standard
EN 50 015
EN 50 016
EN 50 017
EN 50 018
EN 50 019
EN 50 028
EN 50 020 (unit)
EN 50 039 (system)
EN 50 021
T3
25.5 %
IIC
1.0 %
Classification meeting CENELEC and IEC
IEC
standard
IEC 79-6
IEC 79-2
IEC 79-5
IEC 79-1
IEC 79-7
IEC 79-18
IEC 79-11
IEC 79-15
T4
4.9 %
Use in Hazardous Environments
*
Number of classified materials
Pressure resistant
Increased safety
Electrical components
Explanation
Oil encapsulation
Overpressure
encapsulation
Sand encapsulation
encapsulation
Cast encapsulation
Intrinsic safety
for zone 2 (see below)
T5
0 %
T6
0.2 %
Application
Zone 1 + 2
Zone 1 + 2
Zone 1 + 2
Zone 1 + 2
Zone 1 + 2
Zone 1 + 2
Zone 0 + 1 + 2
Zone 2
Total
432
Total
501
*
*
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