ABB ATS021 - 8 Technical Data of the Automatic Transfer Switch ATS021

31
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 %