Accessories
The accessories listed can used
and included the ATEX certification.
The construction type these
terminals must comply with
EN 60079-11.12 66
25 101 87.4 452
The current-carrying capacity cables and lines the installation defined VDE 0298 part normal ambient temperature °C.87 88
35 125 108. the
operating current must reduced factor 0.e. important sure
that two the same cross-sections are
used below the rated cross-section.
Accessories
The accessories listed can used and
comply with 60079-11.05 361
300 520 452. When
loaded with the rated current 10%,
the temperature the current bar of
the modular terminal may not rise more
than K.59 50
16 76 66.
The continuous operating temperature
to 60079-0 for the material KRG is
130 °C, for Wemid 120 and for
the material °C.
Taking into account further safety
factor according 60079-0, we
reach the following definitions:
Temperature class Ambient temperature
T6 -50 +40 °C
T5 -50 +55 °C
The permitted nominal current must
be reduced accordingly the actual
ambient temperature higher.04 167
95 232 201.
Installation
The general statements regarding
standard applications are also valid for
Ex applications.
W
Technicalappendix
W.0
Installation type C
+ current-carrying wires
PVC °C
A
Umgebungstemp.5 17.84 28
6 41 35.ATEX terminal blocks
Design for i
Terminals for intrinsically-safe circuits
(“i“) are passive components. particular, the i
requirements always apply the entire
circuit, i. °C,
Faktor 0.75 109
50 150 130.
Certified for the European
Directive 94/9/EG ATEX –
Electrical data
The values for current-carrying capacity
as stated the catalogue are based on
an ambient temperature 40°C.87
Verlegeart bel.5 131
70 192 167.225 15
2. Adern PVC °C
A
1.88 21
4 32 27.83 267
185 353 307.67 36
10 57 49. Therefore,
for use intrinsically-safe circuits,
you not need EC-standard
examination certificate.03 234
150 309 268.5 15.
The blue terminals are recommended
for clear labelling and easy recognition.271282250000 2012/2013
.11 307
240 415 361. also parts areas not at
risk explosion.
Current-carrying capacity cables and lines
Nominal currents
Cross-sect.87.
Additional information about using
Weidmüller terminals intrinsically-
safe circuits can requested from the
manufacturer.
Clamping two conductors in
Ex applications
For the terminals from our W-series, it
is normally permitted connect two
wires per clamping position long as
this permitted accordance with the
type test according IEC 60947-7-1
or 60947-7-2.5 24 20.
Where necessary, end plates or
partitions must installed as
described ensure adherence to
creepage and clearance distances for
Ex applications. VDE 0298 part (IEC364-5-523)
Current-carrying capacity lines
EN 60079-7
Type ignition “increased safety”
Connection terminals
Ambient temperature °C,
40 temperature rise
Current equivalent the
conductor connected
A
Ambient temperature °C
Factor 1.84 202
120 269 234
