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Is used mainly in telecom related applications, where low emis­sion is required. We have EN50022 level B on all such inputs. Use the B input code or 48.
For EN50155, IEC60571 train standards use input code 48T with this the output power can be derated.


 

Input range Family codes
B = 20 - 60 Vd.c. PM50 PSE100 PSC150 PM150 PU300 PU600
B = 20 - 72 Vd.c. PSE100
48 = 38 - 60 Vd.c. PM80 PM240 PSC240 PU500 PU1000
48 = 41 - 60 Vd.c. (*) PSE200, PSE250 PM500 PC1000, PC1400, PC2000
48T = 28.8 – 68 Vd.c. For train EN 50155/IEC 60571 and forklifts, on demand
48T = 24 - 40 Vd.c. For some train markets, on demand


Polyamp guarantee full performance within the specified input range, which means 105% load capacity, 110% output voltage level at max rated operational temperature.
(*) Rated input voltage with max rating and temperature. The input accept <-35%  of nominal input before switching of the converter. The output can drop to 95% of nominal output.

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