Specifications

91
Models (1) STS 100-X STS 150-X STS 200-X STS 250-X STS 300-X STS 400-X
Nominal current (A) 100 150 200 250 300 400
Input STS 100-X STS 150-X STS 200-X STS 250-X STS 300-X STS 400-X
Nominal voltage - sources S1/S2 380 - 400 - 415 Vac 3-phases with neutral
Input voltage tolerance 180÷264 Vac (selectable)
Switched input phases 3+N (4-pole) - 3 (3-pole)
Nominal frequency 50/60 Hz
Input frequency tolerance +/-10% (selectable)
Distribution compatibility IT, TT, TNS, TNC
Opereting features STS 100-X STS 150-X STS 200-X STS 250-X STS 300-X STS 400-X
Transfer typology “Break Before Make” (no sources overlapping)
Available transfer modes Automatic / Manual / Remote
Transfer time for source failure < 4 msec (S1/S2 synchronised)
10 msec (S1/S2 not synchronised)
System STS 100-X STS 150-X STS 200-X STS 250-X STS 300-X STS 400-X
Weight (kg) 155 175 205 210 220 240
Dimensions (wdh) (mm) 685x530x1500 685x580x1770
Efficiency at full load (%) > 99
Noise level at 1 m from front
(from 0 to full load) - (dBA) 52 55
Storage temperature range -10°C to +50°C
Ambient temperature 0°C ÷ +40°C
Relative humidity 90% non-condensing
Max. Installation height 1000 m at rated power (-1% power for every 100 m above 1000 m) - Max 4000 m
Standard compatibility EN 62310-1 (safety) EN 62310-2 (electromagnetic compatibility)
Colour Light grey RAL 7035
Index of protection IP 20
Sentry STS
Technical data
(1) X= 3 in cases of 3-pole switching (3 phases) ; X=4 in cases of 4-pole switching (3 phases + Neutral)