JUMO TYA S202, Operating Manual, Page: 19 / 99

V1.00/EN/00709725 [Thyristor power controller TYA S202] 19
2 Mounting
must be dissipated at the mounting site (e.g. in the control cabinet) in accor-
dance with the climatic conditions.
2.1.2 Filtering and interference suppression
To prevent radio-frequency interference, generated with a soft start in phase-
angle operation for example, electrical apparatus and plants must have inter-
ference suppression implemented.
The control electronics of the thyristor power controller comply with the EMC
requirements of EN 61326.
However, modules such as thyristor power controllers do not have any pur-
pose by themselves. They only serve as a component function within a plant.
Where applicable, the power controllers's entire load circuit must also have
suitable interference suppression filters fitted by the plant provider.
There are a number of specialist companies that provide appropriate ranges of
interference suppression filters to deal with any interference problems. These
filters are normally supplied as complete modules that are ready to be con-
nected.
2.1.3 Admissible load current depending
on the ambient temperature and the site altitude
Ambient tem-
perature
45 50 60
75
20
200
T/°C
150
Load current in A
Reduction at a temperature of 45 °C:
2 %/kelvin
70 %
250
100
50