UNI-Geräte E. Mangelmann Elektrotechnische Fabrik GmbH
Holtumsweg 13, D-47652 Weeze, Tel. +49 2837/9134-0, Fax. +49 2837/1444
www.uni-geraete.de [email protected]
Seite 2/9
TM 4021
220.100.040-09
Solenoid Drive
Series MG…X, MG…-A.X
With - protection for intended use in ex- zone 1
in accordance with 2014/34/EU (ATEX 95)
Special condition for safe use
1. Since temperatures higher than 70°C occur at the cable entry and higher than 80°C at the core
junction, this equipment must be additionally marked with the higher temperature (label at the
cable entry). Only a heat-resistant cable may be connected.
2. The solenoid actuators need to be protected against the dangerous consequences of short circuits,
earth faults and overloads. A line-side fuse appropriate to the rated current (max. 3xIB acc. to IEC
60127-2-1) is to chosen. A line-side motor circuit breaker - with short-circuit and thermal
instantaneous tripping - is to be adjusted for the rated current. If the magnet has very low rated
currents, fusing with the lowest current value in keeping with the stated IEC standard is sufficient.
Protective devices must be of the kind that prevents automatic reconnection under fault conditions.
The fusing rated voltage must match or exceed the specified nominal voltage of the solenoid
actuator. The breaking capacity of the fuse link must match or exceed the maximum short-circuit
current expected at the place of installation (usually 1500 A).
3. When a silicon (or silicon containing) connection lead is used or if the connecting lead is not
scratch proof respectively, this has to be protected from mechanical damage (e.g. inetrrupted
tube system with edge protection).
4. A maximum permissible ripple of 20% is valid for all magnets of dc-design.
5. The repair and overhaul of the flameproof joint is permitted only after first consulting with Uni-
Geräte.
6. The emergence of explosive atmospheres is to be avoided in the region of the magnetic core and
guide tube.
Electrical connection
The diameter range / clamping range of the cable gland must be noted and adhered to. Where a
flexible connecting line is used, insulated wire-end sleeves with plastic collars conforming to DIN 46228
part 4 are to be used. The voltage supply at the solenoid actuator must lie within the range -15% to
+10%. The appropriate circuit diagram can be obtained from the connection diagrams at the end of
these operating instructions. To guarantee an IP65 degree of protection, the magnetic housing lid must
be refitted carefully . Versions supplied with a connecting cable ex works are ready for use, i.e. the
connection compartment does not need to be opened again.
CE-Identification
The Council of the European Community passed common directives for the free movement of goods
within the European Community, which determine the minimum requirements for safety and health
protection. The CE-identification confirms, that the products correspond to the EC directives, i.e. are in
agreement with the relevant, especially harmonized standards.
Note concerning directive 2014/34/EU (explosion protection directive ATEX 95):
The solenoid drives (MG..Xn, MG..A..Xn, MG..A..C..Xn) fulfil the relevant requirements of directive
2014/34/EU; therefore they have the CE-identification as per annex X of the directive. The declaration
of conformity is included.
Note concerning directive 2014/30/EU (EMV-Directive):
The solenoid drives fulfil the requirements of the specification to be applied of the product families con-
cerning the industrial sector as well as the sectors of private housing, business and trading, as well as
of small businesses.
On using of AC- and DC-variants the user must provide a suitable mains filter (e.g. X-capacitor 47 nF)
at the mains entrance to attenuate the physically caused line-related turn-off current of the solenoid.
In the sense of the EMV-directives solenoid drives with driving elements for valves are not regarded as
independently operable appliances and are only processed further by expert companies, or
respectively installed into a machine. They must not be started up until it was determined that the
machine, or respectively, the complete line, corresponds to the regulations of the EMV-directives.
