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Safety
Correct use
Solenoid types 2A6x, 2C6x, 2E6x and 2F6x
are used for operating Eugen Seitz AG valves.
The appropriate solenoid must be selected in
conjunction with the manufacturer or one of his
representatives. The solenoids are classified
as category 2 and equipment group II
devices in compliance with EC-type-
examination certificate BVS 14 ATEX E011
and are there-fore suitable for use in areas
with potentially explosive gas-, vapour-, mist-
and air mixtures (zones 1 and 2) and in areas
with dust and air mixtures (zones 21 and 22.
Authorised persons
The tasks described here may only be carried
out by authorised personnel. Only those with
electrical
training
qualify
as
personnel (EN 60204-1).
About these operating instructions
These operating instructions form part of the
product and must be integrated into the relevant
operating
instructions
for
descriptions
equipment or machines.
General Safety Warnings
To ensure the solenoid's explosion protection
performance any change of its configuration is
forbidden.
Before starting any connection or
disconnection procedures, it must
be ensured, that the power supply is
disconnected and protected against
unauthorised reconnection.
The housing of the solenoid can be
more than 80° C hot.
Danger of burning!
To
guarantee
the
protection, the assembly instructions
must
be
followed.
device may be used is dependent on
the
ambient
temperature.
attention
to
the
connection
ambient
temperature
temperature class specified on the
name plate.
Guarantee
Trouble-free
operation
is
assured
«technical data» and «operating conditions»
are adhered to.
Type Designation
Example of a type designation:
2 A 65
Construction type (dependent
on the cable inlet thread)
65 = NPT 1/2
67 = M 20x1.5
Circuit type
Solenoid size
Explosion Protection Designation
II 2 G Ex db IIC T6, T5 or T4
II 2 D Ex tb IIIC T80°C, T95°C or T130°C
The solenoids conform to the following
EN 60079-0:2018, EN 60079-1:2014 and
EN 60079-31:2014
Spitalstrasse 204
Eugen Seitz AG
Operating instructions
solenoids
2A6x, 2C6x, 2E6x, 2F6x
1258
II 2 G/D
authorised
DE / GB / E S/ FR/ IT/ RU
of
Technical Data
Rated voltage
According to name plate
Rated frequency
According to name plate
Rated power
According to name plate
Operating time
100 % (continuous duty)
Ambient temperature
For T1 to T6 and T80°C:
For T1 to T5 and T95°C:
For T1 to T4 and T130°C:
Relative humidity
Max. 95% (non-condensing)
Protection against soiling
explosion
IP 65/67 according to EN 60529
Where
this
Operating Conditions
Pay
Power supply
of
Harmonic oscillations have no effect on the
and
functioning of the device if the r.m.s. value of
the sum of all the voltages lies within the
tolerances specified for the rated voltage.
Permissible voltage impulses
Peak value
Duration
if
the
The
interruptions or loss depend on the valve (if
necessary, these can be obtained from the
manufacturer).
The device must be protected for up to
three times the rated current of the solenoid.
Breaking capacity at least as great as the
short circuit current to be expected at the
place of installation.
Electromagnetic compatibility:
These solenoids do not emit any radiated
disturbances (according to EN 61000-6-3).
Conducted disturbances are to be expected
in the case of circuit type «A».
Possible transient switching voltage:
200 V for a rated voltage ≤ 60 V
600 V for a rated voltage > 60 – 250 V
1000 V for a rated voltage > 250 – 400 V
standards:
Solenoids are not sensitive to radiated
disturbances (according to EN 61000-6-2).
For conducted disturbances consult the
specifications
CH-8623 Wetzikon
Phone +41 044 931 80 80
-15 %, +10 %
± 2 %
-50°C to +40°C
-50°C to +55°C
-50°C to +90°C
≤1000 V
≤1.5 ms
permissible
values
for
voltage
for
the
power
supply.
info@seitz.ch
Surge voltages of over-voltage category III
according to IEC 60664-1 are permissible be-
tween the current-conducting parts and parts
connected to the protective conductor.
Extreme demands
Please consult manufacturer in connection
with
using
the
conditions such as ionising and non-ionising
radiation, vibration, shock, permanent shock
and hostile environmental conditions.
Assembly/ Disassembly
Before beginning, the «Safety» and «General
Safety Warnings» sections must be read and
fully understood.
Assembly
Slide solenoid over the guide tube of the
valve.
Fasten with securing washer and nut.
Tighten the nut until loosening of the
solenoid due to expected shocks and
vibrations is no longer possible (tightening
torque 15 to 20Nm).
Connecting the device to the power supply
The solenoid must be connected via appro-
priate cable entries or conduit systems that
conform to EN 60079-1 and for which separate
test certificates are available. Cable entries or
conduits without Ex-d/Ex-t test certificate
must not be used.
Open cover (17 mm hex key).
Connect solenoids to source of power using
a cable with a copper cross-section of 0.75
to 1.5 mm
2
. In the case of circuit type E, it
does matter how you connect the poles
(positive pin marked with a «+» sign).
If ambient temperature is higher than 50°C
the temperature rise of 20 K at the cable
entry point has to be taken into account.
Connection to the local potential equalisation
via internal earthing clamp or external
connection clamp.
Before beginning operation, fasten the cover
as far as it will go using a hex key.
Turn back the cover until the setscrew is
positioned over the nearest locking bore
Fix the setscrew using a hex key (2 mm).
Disassembly
Disconnect
connection
«General safety warnings»).
Loosen fixing nut.
Remove solenoid from the guide tube.
Disposal
To ensure safety from explosion, it is not
permitted for solenoids to be repaired.
Dispose of as used iron or send back to
the manufacturer.
www.seitz.ch
solenoid
under
extreme
lead
(observe
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