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Siemens AG UP 258E22, UP 258D12, UP 255D21 Update: http://www.siemens.com/gamma-td
Building Technologies Division
Control Products and Systems ã Siemens AG 2015
P.O. Box 10 09 53, D-93009 Regensburg Subject to change January 2015
Physical Specifications
Housing plastic
Dimensions (diameter x height) : 88 mm x 63 mm
Weight approx. 65 g
Colour Titanium white (similar RAL 9010)
Fire load approx. 2 MJ
Mounting In wall box , ceiling cutout or into surface mounting
housing
Environment and safety regulations
Degree of pollution (according to IEC 60664-1)
Overvoltage category (according to IEC 60664-1)
2
III
Protection class (to EN 60529) IP20
Electrical Safety
Bus
Devices covers
Electromagnetic compatibility
Safety extra low voltage SELV DC 24 V
EN 50428
complies with EN 50428
Environmental specifications
Climatic withstand capability
Ambient temperature in operation
Storage temperature
Relative humidity (non-condensing)
EN 50090-2-2
-5°C…+45°C
-20°C…+70°C
5 % to 93 %
Reliability
Failure rate UP 255D21: 250 fit at 40°C
UP 258E22: 308 fit at 40°C
UP 258D12: 308 fit at 40°C
Markings KNX EIB
CE marking Complies with the EMC regulations (residential and
functional buildings),
low voltage regulations
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