RS20 -2400M2M2SDAPHC09.0.14 Hirschmann Switch

ATEX Directive 94/9 EC – Special conditions for safe use



Relevant for RS20 Basic family devices when operating in explosive gas

atmospheres according to ATEX Directive 94/9 EC, the following applies:

 List of Standards: 

EN 60079-0:2009

EN 60079-15:2010

Certificate No.: DEKRA 11ATEX0139 X.

 Make sure that the device has the following label:

II 3G

Ex nA IIC T4 Gc

Dekra 11ATEX0139 X

Ambient rating and temperature code:

T4: 0 °C ≤ Ta ≤ +60 °C for “B” types (item 17 of nomenclature

breakdown).

 The modules shall be installed in a suitable enclosure in accordance

with EN 60079-15 providing a degree of protection of at least IP54

according to EN 60529. taking into account the environmental

conditions under which the equipment will be used.

 When the temperature under rated conditions exceeds 70 °C at the

cable or conduit entry point, or 80 °C at the branching point of the

conductors, the temperature specification of the selected cable and

cable entries shall be in compliance with the actual measured

temperature values.

 Provisions shall be made to prevent the rated voltage from being

exceeded by transient disturbances of more than 40 %.

 Connectors shall be connected or disconnected exclusively in dead

voltage state.

 DIP switches shall be switched exclusively in dead-voltage state

For the ground conductor, use a cable with a cross section of at least

1.0 mm².

 The clearance between the ventilation slots of the housing and other

objects must be at least 10 cm (3.94 in).

 The device must be installed in the vertical position.

 If installed in a living area or office environment, the device must be

operated exclusively in switch cabinets with fire protection

characteristics in accordance with EN 60950-1.

 Environment

The device may only be operated at the specified surrounding air

temperature (temperature of the surrounding air at a distance of up to

5 cm (1.97 in) from the device) and relative air humidity specified in the

technical data.

 Install the device in a location where the climatic threshold values

specified in the technical data will be observed.

 Use the device only in an environment within the pollution degree

specified in the technical data.

 Qualification requirements for personnel

Qualified personnel as understood in this manual and the warning signs,

are persons who are familiar with the setup, assembly, startup, and

operation of this product and are appropriately qualified for their job. This

includes, for example, those persons who have been:

 trained or directed or authorized to switch on and off, to ground and to

label power circuits and devices or systems in accordance with current

safety engineering standards;

 trained or directed in the care and use of appropriate safety equipment

in accordance with the current standards of safety engineering;

 trained in providing first aid.