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1SDH000759R0002, L4106
Installation and operating instructions, ATS021
8. Technical data of the automatic transfer switch
ATS021
8. Technical data
Table 8.1
Technical data of ATS021
ATS021
Value
Operating voltage
Main voltage
208Vac - 480 Vac ±20 %
Phase voltage
120Vac - 277 Vac ±20 %
Rated frequency
50 Hz, 60 Hz ±10 %
Rated impulse withstand voltage U
imp
6 kV
Voltage and frequency sensing precision
Voltage
5
%
Frequency
1
%
Relay utilization category
8 A, AC1, 250 V
1/3 phase
Over voltage category
III, U
imp
6 kV
IP rating
IP20 for the front panel
Temperature area
-20... +60 °C
Transportation and storage temperature
-40... +90 °C
Altitude
Max. 2000 m
Humidity r.h. = 95 % T = 25...55 °C
with condensation
5 % - 98 %
without condensation
5 % - 90 %