Technical Data - Seitz 2A6 Serie Instrucciones De Servicio

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 certifi-
cate PTB 98 ATEX 1008 and are therefore suit-
able for use in areas with potentially explosive
gas-, vapour-, mist- and air mixtures (zones 1
and 2).
Authorised persons
The tasks described here may only be carried
out by authorised personnel. Only those with
electrical training qualify as authorised person-
nel (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 of equip-
ment or machines.
General Safety Warnings
In order to ensure the solenoid's explosion pro-
tection performance any change of its configu-
ration is forbidden.
Before connecting ensure that the
power supply is disconnected and is
protected against unintentionally be-
coming re-connected.
The housing of the solenoid can be
more than 80° C hot. Danger of
burning!
In order to guarantee the explosion
protection, the assembly instruc-
tions must be followed. Where this
device may be used is dependent
on the ambient temperature. Pay at-
tention to the connection of ambient
temperature and temperature class
specified on the name plate.
Guarantee
Trouble-free operation is assured if the «tech-
nical data» and «operating conditions» are ad-
hered to.
Type Designation
Example of a type designation:
2 A 65
Construction type (dependent
on the cable inlet thread)
65 = NPT 1/2
66 = Pg 13.5
67 = M 20x1.5
Circuit type
Solenoid size
Explosion Protection Designation
II 2 G Ex d IIC T6, T5 or T4
Eugen Seitz AG CH-8623 Wetzikon
Operating instructions
solenoids
2A6x, 2C6x, 2E6x, 2F6x
0102
II 2 G

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:
For T1 to T5:
For T1 to T4:
Relative humidity
Max. 95% (non-condensing)
Protection against soiling
IP 65 according to EN 60529
Operating Conditions
Power supply
Harmonic oscillations have no effect on the
functioning of the device if the r.m.s. value of
the sum of all the voltages lies within the tol-
erances specified for the rated voltage.
Permissible voltage impulses
Peak value
Duration
The permissible values for voltage interrup-
tions or loss depend on the valve (if neces-
sary, these can be obtained from the manu-
facturer).
The device must be protected for up to three
times the rated current of the solenoid. Break-
ing capacity at least as great as the short cir-
cuit current to be expected at the place of
installation.
Electromagnetic compatibility:
These solenoids do not emit any radiated dis-
turbances (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
Solenoids are not sensitive to radiated
disturbances (according to EN 61000-6-2).
For conducted disturbances consult the
specifications for the power supply.
Switzerland Phone +41 044 931 80 80
-15 %, +10 %
± 2 %
-20°C to +40°C
-20°C to +55°C
-20°C to +90°C
≤1000 V
≤1.5 ms
www.seitz.ch 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 solenoid under extreme 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.
Connecting the device to the power supply
The solenoid has to 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 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 mm2. In the case of circuit type E, it does
matter how you connect up the poles (posi-
tive pin marked with a «+» sign).
If ambient temperature is higher than 50°C
the temperature rise of 20 K at the cable en-
try point has to be taken into account.
Connection to the local potential equalisation
via internal earthing clamp or external con-
nection 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 po-
sitioned over the nearest locking bore
Fix the setscrew using a hex key (2 mm).
Disassembly
Disconnect connection lead (observe «Gen-
eral 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.