JUMO TYA S201, Operating Manual, Page: 17 / 92

V1.00/EN/00709718 [Thyristor power switch TYA S201] 17
2 Mounting
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 61 326.
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 controller'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 filter problems.
These filters are normally supplied as complete modules that are ready to be
connected.
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