Technical Data - Seitz 2A52 Instrucciones De Servicio

Safety
Correct use
Solenoid types 2A52 to 2F55 are used for op-
erating 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 equip-
ment-group II devices in compliance with EC-
type-examination certificate PTB 00 ATEX 2211
X and are therefore 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. Authorised per-
sonnel are those persons that have undergone
training in electrical engineering (EN 60204-1).
Concerning these operating instructions
These operating instructions form a component
part of the product and must be integrated in the
relevant operating instructions of the system- or
machine description.
General Safety Warnings
Before connection work begins, it
must be ensured, that the power sup-
ply is disconnected and protected
against unauthorised reconnection.
The housing of the solenoid can
reach a temperature of more than
80ºC. The danger of burning exists
when the housing is touched.
In order to maintain protection against
explosion, the assembly instructions
must be absolutely adhered to. The lo-
cation where this device is allowed to
use in dependent upon the prevailing
ambient temperature. Pay attention
to the allocation of temperature class
and maximum surface temperature
to ambient temperature stated on the
name plate. Modifications of any kind
in the solenoids are prohibited.
Warranty
Trouble-free operation
Trouble-free operation is only assured if the pri-
me information contained in chapter „Technical
Data" is adhered to and the conditions listed in
„Operating Conditions" are fulfilled.
Type Designation
The type designation is composed as follows:
2 A 52
Construction type
Circuit type
Solenoid size
Explosion Protection
For gas-, vapour-, mist- and air mixtures
II 2 G Ex emb II T6, T5 or T4 (temperature
class dependent on ambient temperature)
For dust- and air mixtures
II 2 D Ex tD A21 IP65 T80°C, T95°C or T130°C
(max. surface temperature is dependent on am-
bient temperature)
Eugen Seitz AG CH-8623 Wetzikon
Operating instructions
solenoids
2A52 to 2F55
0102
II 2 G/D

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
with rated power ≤ 3 W or ≤ 4 VA
for T1 to T6 and T80°C: -20º C to +60º C
with rated power ≤ 4.5 W or ≤ 6 VA
for T1 to T6 and T80°C: -20º C to +50º C
with rated power ≤ 6 W or ≤ 8 VA
for T1 to T6 and T80°C: -20º C to +40º C
for T1 to T5 and T95°C: -20º C to +60º C
with rated power ≤ 7.5 W or ≤ 10VA
for T1 to T5 and T95°C: -20º C to +50º C
with rated power ≤ 9.5 W or ≤13VA
for T1 to T5 and T95°C: -20º C to +40º C
with rated power ≤ 14 W or ≤ 18 VA
for T1 to T4 and T130°C: -20º C to +40º C
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: ≤ 1000 V
Duration: ≤ 1.5 ms
The permissible values for voltage interrup-
tions or loss depend on the valve. If necessa-
ry, these can be obtained from the manufac-
turer.
The device must be protected for up to a ma-
ximum of three times the rated current of the
solenoid (see name plate). 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 dis-
turbances (according to EN 61000-6-3).
Switzerland Phone +41 044 931 80 80
Conducted disturbances are to be expected
in the case of circuit type „A". Possible tran-
sient switching voltages:
200 V at rated voltage ≤ 60 V
600 V at rated voltage > 60 V – 250 V
Solenoids are not sensitive to radiated distur-
bances ( according to EN 61000-6-2).
For conducted disturbances, please consult
the specification for the power supply.
Surge voltages of the over-voltage category
III according to IEC 60664-1 are permissible
between current-carrying parts and those
parts connected with the protective con-
ductor.
Extreme demands
Please consult the manufacturer to discuss
extreme operating-/environmental 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.
-15 %, +10 % Assembly
Slide solenoid over the guide tube of the val-
±2 % ve.
Fasten with securing washer and nut.
Tighten the nut until loosening of the solenoid
due to expected shocks and vibrations is no
longer possible.
Connection work
Open the cover and connect the solenoid
to the power supply using a cable (copper
crosssection of 0.75 to 2.5 mm
12 mm). In the case of circuit type „E", please
observe polarity. Positive pole is marked with
a „+" sign.
Connection with local potential equalisation
via internal earthing clamp or external con-
nection clamp.
Before beginning initial operation, close the
cover and check whether the connected cur-
rent circuit is protected with a fuse according
to that stated on the name plate.
Disassembly
Disconnect the connection cable (observe
„General Safety Warnings").
Loosen fastening nut.
Withdraw solenoid from the guide tube.
Disposal
To ensure explosion protection, solenoids
may not be repaired. Dispose of as special
waste or return to the manufacturer.
www.seitz.ch info@seitz.ch
, outer ø 6 to
2