12
MS20/MS30 MS20/MS30
Release 10 07/2012
The lower panel of the device is grounded by means of the DIN rail and
optionally by means of the separate ground screw.
The switch basic module forms an inseparable unity. By removing the
display and connecting parts, you risk the damage of the switch basic
module.
Make sure that the electrical installation meets local or nationally
applicable safety regulations.
The ventilation slots must not be covered to promote free air
circulation.
The clearance between the ventilation slots of the housing and other
objects must be at least 10 cm (3.94 in).
The device has to be mounted in an upright position
(see fig. 18)
.
If installed in a living area or office environment, the device must be
operated exclusively in switch cabinets with fire protection
characteristics according to EN 60950-1.
Environment
The device may only be operated at the specified ambient temperatures
(temperature of the ambient air at a distance of up to 5 cm from the
device) and at the specified humidity.
Install the device in a location where the climatic limit values specified
in the technical data are not exceeded.
The device may only be used in environments with the pollution
degrees not exceeding the values 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.
